审视短期主义:质疑其前提
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长期审视短期主义:质疑其前提 2014 年 11 月 18 日
A Long Look at Short-Termism Questioning the Premise November 18, 2014
Authors
Authors
迈克尔·J·莫布森(Michael J. Mauboussin)[email protected]
Michael J. Mauboussin [email protected]
丹·卡拉汉,特许金融分析师(CFA),[email protected]
Dan Callahan, CFA [email protected]
管理者的……具体任务,是在每一项决策和行动中,协调眼前与长远未来的要求。牺牲任何一方,都会危及企业。
“The . . . specific task of managers is to harmonize in every decision and action the requirements of the immediate and long-range future. Managers cannot sacrifice either without endangering the enterprise.”
彼得·F·德鲁克《人与绩效》
Peter F. Drucker People and Performance
短期主义被认为困扰着投资界的所有参与方,包括投资经理、公司以及投资者。然而,这一点很难被证实。
Short-termism is said to plague all parties in the investment community, including investment managers, companies, and investors. However, it is very difficult to prove.
要评估市场短期主义的影响,正确的分析层面不在于人们说什么,而在于股市做什么。
To assess and evaluate the impact of market short-termism, the right level of analysis is not what individuals say but rather what the stock market does.
对许多公司而言,投资期限缩短是对经济现实的合理回应。
For many companies, a contraction in time horizon is a proper response to economic reality.
深受短视主义困扰的企业高管与投资者是一对舞伴,他们因彼此的特性而相互吸引。
Corporate executives and investors who suffer from short-termism are partners in a dance who are attracted to one another based on their characteristics.
在投资组合构建中,相关的持有期是投资者对某一资产类别的暴露时长,而非某只个股或基金的换手率。
The holding period that is relevant in portfolio construction is the time an investor is exposed to an asset class, not the turnover for a particular stock or fund.
我们为投资经理、公司和投资者应对短视主义压力提供了具体建议。
We provide specific recommendations to deal with the pressures of short-termism for investment managers, companies, and investors.
Introduction
Introduction
“短视主义”被广泛认为是投资行业的一大问题。短视主义,是指倾向于做出短期看似有利、却牺牲长期更高回报的决策。例如,一家公司削减研发预算,以提升今年盈利,却放弃了未来更大的利润,这就是在搞短视主义。同样,投资者放弃一只价格远低于内在价值的股票,转而基于预期的短期价格波动买入另一只股票,也是在搞短视主义。
“Short-termism” is widely accepted as a major problem in the investment industry. Short-termism is the tendency to make decisions that appear beneficial in the short term at the expense of decisions that have a higher payoff in the long term. For example, a company exhibits short-termism when it cuts its research and development budget to deliver higher earnings this year, forsaking larger profits in the future. Likewise, an investor who forgoes a stock that trades at a steep discount to intrinsic value to buy a stock based on an anticipated near-term price move engages in short-termism.
据说短视主义困扰着投资界的各方参与者,包括投资经理、公司和投资者。典型的说法是,投资者要求短期回报,迫使投资经理专注于眼前收益,这最终促使投资经理向公司施压,要求交出季度业绩。短视主义引发了大量焦虑不安。
Short-termism is said to plague all parties in the investment community, including investment managers, companies, and investors. The typical story is that investors demand short-term results, forcing investment managers to dwell on immediate gains, which ultimately spur investment managers to press companies for quarterly results. Short-termism has caused a great deal of hand-wringing.1
问题是短期主义很难被证实。正如我们将看到的,许多通常被视为短期主义症状的现象经不起推敲,而时间视野的缩短也确有一些合理的理由。尽管仍有大量改进余地,尤其是在激励机制方面,但短期主义这个话题在公众讨论中所受到的对待,需要比目前更谨慎一些。几乎可以说,这场辩论呈现出一边倒的局面。
The problem is that short-termism is very difficult to prove. As we will see, many of the common perceived symptoms of short-termism don’t hold up to scrutiny, and there are some legitimate reasons for the shortening of time horizons. While there remains plenty of room for improvement, especially when it comes to incentives, the issue of short-termism deserves more care than it has received in the popular discourse. With little exception, the debate appears to be very one-sided.2
麦肯锡公司咨询师多米尼克·巴顿与加拿大养老金计划投资局总裁兼首席执行官马克·怀斯曼在最近一篇文章中的引述,精准捕捉了时下的普遍情绪:
A quote from a recent article by Dominic Barton, a consultant at McKinsey & Company, and Mark Wiseman, president and chief executive officer (CEO) of the Canada Pension Plan Investment Board, captures the prevailing mood:
……短期主义的阴影持续蔓延——而且情况可能实际上在恶化。由此,企业更难为长期进行投资和积累价值,这破坏了广泛的经济增长,也降低了储蓄者的投资回报。
“. . . the shadow of short-termism has continued to advance—and the situation may actually be getting worse. As a result, companies are less able to invest and build value for the long term, undermining broad economic growth and lowering returns on investment for savers.
我们认为,问题的主要根源在于金融市场持续向上市公司施压,要求其最大化短期业绩。虽然在金融危机之后,关于短期主义的讨论已从文火慢炖变成了滚沸翻腾,但对短期主义的担忧由来已久。且看以下引述:“股票的平均持有期已从 1960 年的七年多缩短到如今的两年左右。这一下降意味着投资者买卖公司股票的频率发生了巨大变化。这或许是最能体现投资者视野缩短的证据。”——迈克尔·E.
The main source of the problem, we believe, is the continuing pressure on public companies from financial markets to maximize short-term results.”3 While the discussion of short-termism has gone from a mild simmer to a rolling boil following the financial crisis, concerns about short-termism have been around for a long time. Consider the following quotations: “The average holding period of stocks has declined from over seven years in 1960 to about two years today. This decline implies a dramatic shift in the frequency with which investors buy and sell corporate equities. It is perhaps the most telling evidence of shortening investor horizons.” - Michael E.
波特(1992)⁴指出:“考虑到这些机构的巨大购买力,存在一个明显的风险,即这种投机性快进快出交易实际上可能左右个股的市场。无论如何,这类活动往往会造成不受欢迎的价格波动。我对这一趋势感到不安。无论其意图多么值得赞扬,在我看来,这类做法含有有害成分。”
Porter (1992)4 “Given the large buying power of their institutions, there is an obvious risk that speculative in-and-out trading of this type may virtually corner the market in individual stocks. And in any event, activity of this kind tends to create undesirably volatile price fluctuations. I find this trend disquieting. However laudable the intent may be, it seems to me that practices of this nature contain poisonous qualities.”
——威廉·麦克斯尼·马丁(1967)“事实上,大多数(专业投资者和投机者)所关心的,主要不是对一项投资在其整个存续期内可能产生的收益做出卓越的长期预测,而是比普通大众早一步预见估值惯例基础即将发生的变化。”
- William McChesney Martin (1967)5 “For most of [the professional investors and speculators] are, in fact, largely concerned, not with making superior long-term forecasts of the probable yield of an investment over its whole life, but with foreseeing changes in the conventional basis of valuation a short time ahead of the general public.
他们关心的,不是一项投资对“打算永久持有”的人来说到底值多少钱,而是在大众心理影响下,市场三个月或一年后会给它什么价。”——约翰·梅纳德·凯恩斯(1935 年)⁶
They are concerned, not with what an investment is really worth to a man who buys it ‘for keeps,’ but with what the market will value it at, under the influence of mass psychology, three months or a year hence.” - John Maynard Keynes (1935)6
对短期主义的抱怨,跟对当代写作水准下降的哀叹如出一辙。每一代人都觉得写作在走下坡路,怀念过去那些作者写得清晰、生动、标点规范的好日子。7 大多数世代都会觉得,至少有些事情过去比现在好,如果能回到过去的样子,生活会变得更好。
Complaints about short-termism echo the laments about the contemporary standard of writing. Every generation thinks that writing is going to hell and pines for the good old days when authors wrote with clarity, verve, and proper punctuation.7 Most generations have a sense that at least some things were better in the past than in the present and that life would improve if we could revert to how things used to be.
当然,仔细审视之下,昔日的美好时光很少像记忆中所描绘的那样田园诗意。市场尤其如此。与过去相比,如今的投资者信息更灵通(由于《公平披露规则》,大家获取信息的机会均等),受过更好的训练,拥有更强大的计算能力,且交易成本更低。企业亦然。如今的公司比以往任何时候都更加成熟,管理更好,并能以更低的成本提供更优质的产品。《萨班斯-奥克斯利法案》等法规在过去十年间也改善了治理实践。那么,这种明显的麻烦感从何而来?
Upon closer examination, of course, the good old days were rarely as idyllic as memory suggests. This is certainly true for markets. Investors are now more informed (and uniformly so because of Regulation FD), better trained, have access to superior computing power, and face lower transaction costs than those of the past. The same is true for companies. Today’s companies are more sophisticated, better managed, and deliver better products at a lower cost than ever before. Legislation, such as Sarbanes-Oxley, has improved governance practices in the past decade. So why the palpable sense of trouble?
为什么短期主义比以往任何时候都更令人感到紧迫?
Why Short-Termism Feels More Acute Than Ever
“微观-宏观”问题给分析当前投资者是否比过去更加短期化带来了重大挑战。假设你想研究一个由成千上万只蚂蚁组成的蚁群系统。你可以研究每只蚂蚁的行为,仔细记录它们执行的任务、与姐妹蚂蚁的互动方式以及寿命长短。这是微观方法。或者,你也可以考察整个蚁群,观察其觅食、防御和老化过程。这是宏观方法。
The “micro-macro” problem creates a major challenge in analyzing whether investors are more short-term oriented today than in the past. Say you want to analyze an ant colony, a system made up of thousands of individual ants. You can study the behaviors of the individual ants, carefully documenting the tasks they carry out, how they interact with their sisters, and how long they live. That is the micro approach. Alternatively, you can examine the colony, observing how it forages, defends, and ages. That is the macro approach.
一个蚁群是一个复杂的适应性系统,它由单个蚂蚁之间的相互作用涌现而成。复杂适应性系统通常具有一些难以通过考察单个个体来预测的特性和特征。诺贝尔物理学奖得主、物理学家菲尔·安德森用一句精辟的话概括了这个思想:“多了就不同了。”⁸ 简而言之,微观-宏观问题告诉我们,仅仅通过研究系统的组成部分来理解这个系统是非常困难的。如果你想了解蚁群,就去研究蚁群。如果你想了解蚂蚁,就去研究蚂蚁。⁹
An ant colony is a complex adaptive system that emerges as the result of the interaction of the individual ants. Complex adaptive systems generally have properties and features that are difficult to predict by examining the individual agents. Phil Anderson, a physicist who won the Nobel Prize, captured this idea in the pithy phrase, “more is different.”8 In a nutshell, the micro-macro problem says that it is very difficult to understand a system by examining only its parts. If you want to understand the colony, study the colony. If you want to understand the ants, study the ants.9
股票市场是复杂适应系统的经典范例。要评估短期主义的影响,正确的分析层面不是看个人怎么说,而是看股市怎么做。那种主要依据高管或投资者观点来论证短期主义的做法,会直接撞上微观-宏观难题。
The stock market is a classic example of a complex adaptive system. To assess and evaluate the impact of short-termism, the right level of analysis is not what individuals say but rather what the stock market does. A case for short-termism that rests primarily on the views of executives or investors runs headlong into the micro-macro problem.
确实,关于短期主义的许多担忧似乎源于个人的认知。例如,最近一项针对高管和董事会成员的调查证实了对短期主义的担忧。近三分之二的受访者表示,过去五年间创造短期业绩的压力有所加大,近 90% 的人宣称,在商业决策中采用更长的时间视野会对公司业绩产生积极影响。董事会成员认为,短期主义的要求源于“来自投资者(包括机构股东)的短期压力”。10 这些认知是真实存在的,它们会影响行为。但这些认知有充分依据吗?
Indeed, much of the concern about short-termism appears to be based on the perceptions of individuals. For example, a recent survey of executives and board members confirms the concern about short-termism. Almost two-thirds of the participants said the pressure to generate short-term results had increased over the previous five years and nearly 90 percent declared that a longer time horizon in business decisions would have a positive effect on corporate performance. The board members suggested the demands for short-termism were the result of “short-term pressures from investors, including institutional shareholders.”10 These perceptions are real and they can influence behavior. But are they well-founded?
如果投资者才是问题所在,那么要对短期主义做出恰当评估,就必须对股票市场进行一番剖析。
If investors are the problem, a proper evaluation of short-termism requires an analysis of the stock market.
这一分析并未提供多少短期主义行为的证据。首次公开发行(IPO)市场的活跃——包括那些目前收入和利润规模尚小的公司也在上市交易——表明投资者预期的是长期回报。那些规模达数十亿美元的并购交易,涉及的往往是刚过初创阶段的公司,例如 Facebook 收购 WhatsApp、Google 收购 Nest 这类案例,同样要求收购方具备长期视野。事实上,如果你认同一家公司的价值等于其未来现金流的现值,那么在大多数情况下,你必须将现金流预测延伸至多年以后的未来——也就是长期——才能为当前公开市场的估值提供合理依据。
This analysis does not offer much evidence of short-termism. The vibrant market for initial public offerings (IPOs), including deals for companies that have modest revenues and profits currently, suggests that investors anticipate long-term payoffs. Multi-billion-dollar mergers and acquisitions (M&A) of companies barely beyond the start-up phase, such as Facebook’s purchase of WhatsApp or Google’s acquisition of Nest, also require that the buyers take a long-term view. Indeed, if you accept that the value of a company is the present value of future cash flow, in most cases you must project cash flow many years into the future—the long term—to justify today’s valuations in the public markets.11
如果你的反应是,“没错,但首次公开发行和并购市场泡沫严重,股价看起来已被充分估值”,那你要明白,你不能两头都占。高估值意味着市场正在为长期买单。
If your reaction is, “Yes, but the IPO and M&A markets are frothy and stock prices appear fully valued,” recognize that you can’t have it both ways. High valuations mean that the market is paying for the long term.
一个目光短浅的市场,不愿为未来付出太多。事实上,一项分析得出结论,在互联网泡沫前后,股市对科技股的估值中,短视行为占据主导地位。¹² 如果说互联网泡沫是股市短视的证据,那么很难想象怎样的时期才能算作长期。
A market with a short-term horizon is unwilling to pay much for the future. Indeed, one analysis concluded that short-termism prevailed in the stock market’s valuation of technology stocks surrounding the dot-com boom.12 If the dot-com bubble is evidence for the stock market’s short-termism, it is hard to imagine what period of time suffices as the long term.
我们很快就会考察投资者行为——将持有期作为时间跨度的衡量指标。但此刻需要强调的是,如果短期主义是个问题,股市中应当存在明显证据。微观-宏观问题告诉我们,要理解市场,必须审视其自身特征,而非从个体信念进行外推。人们对短期主义的认知,很大程度上源于市场参与者的主观感受,而非市场本身。
We will examine investor behavior, including holding periods as a proxy for time horizon, in a moment. But for now let’s emphasize that if short-termism is a problem there should be clear evidence of it in the stock market. The micro-macro problem tells us that to understand the market we need to examine its features rather than extrapolating the beliefs of individuals. Much of the sense of short-termism comes from the perceptions of participants in the market rather than from the market itself.
短视主义还来源于一种感觉,即世界正在加速运转。如果变化快速,押注未来就显得不够谨慎。实际上,学术研究显示,企业的竞争优势持续期正在缩短。13 如果一家公司经济利润的可持续性转瞬即逝,那么对未来赋予高价值的理由就更少了。
Short-termism also comes from the sensation that the world is speeding up. Betting on the future feels imprudent if change is rapid. Indeed, academic research shows that the period of competitive advantage is shrinking for companies.13 If the sustainability of a company’s economic profit is fleeting, there is less reason to place great value on the future.
多个事实表明变化正在加速。图表 1 展示了美国一半人口采用若干重大新技术所需的时间——这是衡量扩散速度的指标。例如,电话用了 71 年才普及到一半美国人家庭,电力用了 52 年,而个人电脑仅用了 19 年,互联网接入仅用了 10 年。新技术不仅带来显而易见的直接效益,还会产生波及整个经济的连锁效应。随着这些技术扩散的加速,变化本身也在加速。
A number of facts suggest that change is speeding up. Exhibit 1 shows how long it took half of the U.S. population to adopt a number of significant new technologies. This is a measure of the rate of diffusion. For example, it took 71 years for half of the U.S. population to have a telephone and 52 years for electricity, but only 19 years for a personal computer and 10 years for Internet access. New technologies not only have obvious primary benefits but also ancillary effects that ripple through the economy. As these diffusions speed up, so does change.
表 1:新技术的扩散速度
Exhibit 1: The Rate of Diffusion of New Technologies
Telephone 71
Telephone 71
Electricity 52
Electricity 52
Radio 28
Radio 28
Personal computer 19
Personal computer 19
Color TV 18
Color TV 18
Cell phone 14
Cell phone 14
Internet access 10
Internet access 10
0 20 40 60 80 达到美国人口半数所需年数 来源:Adam Thierer 和 Grant Eskelsen,《媒体指标:现代媒体市场的真实状况》,《进步与自由基金会》,2008 年夏季刊,第 18 页。
0 20 40 60 80 Number of Years to Reach Half the U.S. Population Source: Adam Thierer and Grant Eskelsen, “Media Metrics: The True State of the Modern Media Marketplace,” The Progress & Freedom Foundation, Summer 2008, 18.
美国公司资产的平均寿命正在缩短,这也意味着变化在加速。当一家公司对资本设备进行投资时,会计人员要求公司在资产负债表上记录该资产的预计使用年限。(这些资产的使用年限也是折旧计提的依据。)
The average asset life of companies in the U.S. is shortening, which also suggests faster change. When a company makes an investment in capital equipment, the accountants require the company to record a useful life for the asset on the balance sheet. (These asset lives also serve as the basis for depreciation schedules.)
期望自己的资产长期回报的公司,会比那些资产寿命较短的公司看得更长远。这合情合理。
Companies that expect their assets to pay off for a long time will take a more extended view than companies that have short asset lives. This makes sense.
图表 2 展示了九个行业的资产寿命,从公用事业的 29 年到信息技术的不足 7 年。重要的是,市场的构成已经发生了变化,资产寿命短的行业现在比过去更为突出。例如,1980 年能源、材料和工业板块占美国前 1500 家上市公司总市值的 51%,其平均资产寿命约为 16 年。14 如今,这些板块的市场占比已不足四分之一,尽管它们的资产寿命略有延长。
Exhibit 2 shows the asset lives for nine sectors, ranging from 29 years for utilities to less than 7 years for information technology. Importantly, the composition of the market has changed, and sectors with short asset lives are now more prominent than they used to be. For example, energy, materials, and industrials were 51 percent of the market capitalization of the top 1,500 public companies in the U.S. in 1980 and had an average asset life of roughly 16 years.14 Today, those sectors are less than one-quarter of the market even as their asset lives have lengthened a bit.
与此同时,医疗保健和信息技术行业在 1980 年的平均资产寿命为 11 年,当时仅占市场总值的 17%。如今,这两个行业已占市场总值的 30%,平均资产寿命则缩短至 8 年。因此,按市值加权计算,市场中各公司的资产寿命在过去 30 年间已经缩短。
At the same time, healthcare and information technology, with an average asset life of 11 years in 1980, only comprised 17 percent of the market. Currently, those sectors are 30 percent of the market and have an average asset life of 8 years. So the asset life of the companies within the market, weighted by market capitalization, has shrunk in the past 30 years.
附件 2:各行业平均资产使用年限,2013 年
| 行业 | 资产年限 |
|---|---|
| 信息技术 | 6.6 |
| 医疗保健 | 11.4 |
| 非必需消费品 | 12.4 |
| 必需消费品 | 15.1 |
| 工业 | 15.4 |
| 电信服务 | 16.1 |
| 能源 | 17.6 |
| 材料 | 18.6 |
| 公用事业 | 29.4 |
资料来源:瑞士信贷 HOLT。
Exhibit 2: Average Asset Life by Sector, 2013 Asset Life Information Technology 6.6 Healthcare 11.4 Consumer Discretionary 12.4 Consumer Staples 15.1 Industrials 15.4 Telecommunication Services 16.1 Energy 17.6 Materials 18.6 Utilities 29.4 Source: Credit Suisse HOLT.
注:排名靠前的 1000 家非金融企业。
Note: Top 1,000 non-financial firms.
资产寿命缩短,意味着管理者应当采用更短的投资时间跨度,这合理反映了商业世界的现实。例如,许多科技公司的高管无法像公用事业公司那样规划几十年后的事情,因为变化的速度实在太快。因此,对许多公司而言,缩短时间跨度是对经济现实的恰当回应。
Shorter asset lives suggest shorter time horizons over which managers should invest, a reasonable reflection of the business world. Executives of many technology companies, for example, can’t plan for decades in the way a utility company can because the rate of change is simply too fast. So for many companies a contraction in time horizon is a proper response to economic reality.
高管薪酬也被视为短期主义的成因与结果。其逻辑是:近几十年来,基于股价的高管薪酬大幅上升,迫使首席执行官们只关注公司短期股价表现。¹⁵ 例如,20 世纪 80 年代初,美国公司 CEO 的薪酬中与股市挂钩的比例几乎可以忽略不计;到 90 年代初升至约四分之一;21 世纪初达到顶峰,约占一半;如今仍保持在 40% 左右。¹⁶ 那些计划退休或离任的 CEO,其时间视野可能比投资者更短,这进一步助长了短期主义。¹⁷ 根据 2013 年的数据,全球 2500 家最大上市公司的 CEO 平均任期约为 7 年。¹⁸
Executive compensation is also considered a cause and result of short-termism. The thinking is that executive compensation based on the stock price has increased materially in recent decades, compelling CEOs to focus on the short-term stock price of their company.15 For example, the percentage of pay tied to the stock market for the CEOs of U.S. companies was negligible in the early 1980s, rose to about one-quarter in the early 1990s, peaked at roughly one-half in the early 2000s, and remains near 40 percent today.16 CEOs who expect to retire or leave the company may have a time horizon shorter than that of their investors, encouraging short-termism.17 The average tenure for the CEOs of the world’s 2,500 largest public firms is about seven years, based on figures from 2013.18
如果薪酬问题的根源如此简单,那么通过监管或其他市场力量来纠正就会相对直接。但薪酬与短期主义之间的联系很难建立。
Were compensation the simple root of the problem, then correction through regulation or other market forces would be relatively straightforward. But a link between pay and short-termism is difficult to establish.
学术研究表明,CEO 薪酬与公司经济规模密切相关,而与报酬形式无关。¹⁹ 此外,高管薪酬已转向长期激励,董事会比过去更加独立,治理委员会也“几乎普及”。²⁰ 在审视证明短视主义面临的挑战时,一位学者写道:“[我]并不知道有任何实证证据,能从股东或社会角度表明,高管薪酬期限系统性不足地聚焦于长期业绩。”²¹
Academic research shows that CEO pay has closely followed the size of the firms in the economy independent of the form of remuneration.19 Further, executive compensation has moved toward long-term incentives, boards of directors are more independent than in the past, and governance committees are “nearly universal.”20 Reviewing the challenges of conclusively demonstrating short-termism, one scholar wrote, “[I am] aware of no empirical evidence establishing that executive pay term is inadequately focused on long-term performance from either a shareholder or societal perspective, systematically.”21
现在有证据表明,高度依赖股权激励的公司更可能通过自主性应计项目操纵其报告利润。22 尽管这不是短期主义行为的直接证据(即便公司通过会计手段推高利润,理论上仍可进行长期投资),但这显然是在试图影响资本市场。
Now, there is evidence that companies that rely heavily on equity compensation are more likely to manipulate their reported earnings through discretionary accruals.22 While this is not direct evidence of short-termism (companies can conceivably invest for the long term even as they boost earnings through accounting) it clearly appears to be an effort to sway the capital markets.
更有力的短期主义证据来自对成对私企和上市公司的比较。
More direct evidence of short-termism comes from a comparison of matched private and public companies.
那项研究显示,私营公司的投资额高于上市公司,这与上市公司追求提升短期利润的说法相一致。23 针对财务高管的调查进一步佐证了这一点——调查发现,相当大比例的高管愿意放弃能够创造价值的项目,以换取短期盈利。24 这些研究线索无疑表明,短期主义确实在影响公司的决策模式。
That work shows that private companies invest more than public companies, consistent with the notion that public companies seek to boost near-term profits.23 This case is furthered by surveys of financial executives that reveal that a large percentage of them are willing to forgo value-creating projects in order to deliver short-term earnings.24 These strands of inquiry certainly suggest that short-termism is playing a real role in shaping the decisions companies make.
但这个故事还要更微妙一些。也有研究显示存在一个筛选过程:短期导向的投资者会涌向那些提供大量信息、从而带来大量交易机会的公司。
But the story is a little more subtle. There is also research showing a process of sorting, where short-term-oriented investors gravitate toward companies that provide lots of information and hence trading opportunities.
宾夕法尼亚大学沃顿商学院会计学教授布赖恩·布希将机构投资者分为三类:短期交易型、准指数型和坚定持有型。短期交易型投资者持股比例小、持有时间短。准指数型投资者持股比例小、持有时间长。而坚定持有型投资者持股比例大、持有时间长。基于 20 年的数据,他确定 61% 的机构属于准指数型,31% 属于短期交易型,8% 属于坚定持有型。
Brian Bushee, a professor of accounting at the Wharton School of the University of Pennsylvania, sorts institutional investors into three categories: transient, quasi-indexer, and dedicated. Transients hold small stakes for a short time. Quasi-indexers own small stakes for a long time. And dedicated investors hold large stakes for a long time. Based on 20 years of data, he determined that 61 percent of institutions fall in the quasi-indexer category, 31 percent in transient, and 8 percent in dedicated.25
巴希发现,短期投资者会被那些近期盈利占价值比重较大、近期表现良好、以及信息披露更为频繁的公司所吸引——学术界称之为“信息事件”。那些短期投资者持股比例高的公司,更有可能为了安抚这些投资者而进行盈余管理或削减研发开支。
Bushee found that transient investors are attracted to companies with a larger proportion of the value in near-term earnings, those that have done well recently, and those that provide more disclosure—or what academics call “information events.” Companies with a high percentage of transient owners are more likely to manage earnings or cut research and development in an apparent effort to keep their investors appeased.
然而,当一连串有利事件结束时,短线投资者很快就会抛售。
However, transient investors are quick to sell when a string of favorable events ends.26
主要由短期持股者拥有的公司,其投资敏感性也较低——或者说,在机会出现时进行投资的意愿低于平均水平。那些每年支出固定的公司,其股东回报率低于在投资支出上保持灵活的公司。27 这一点也同样让公司与投资者相互匹配:如果投资支出增长过快,短期投资者通常不愿继续持有。
Companies owned mostly by transients also have investment sensitivity, or a willingness to invest when opportunities present themselves, that is below average. Companies that spend the same from year to year generate lower returns for their shareholders than companies that are flexible in their investment spending.27 This, too, pairs companies and investors as transient investors are not keen to stick around if investment spending rises too much.
实际上,那些患有短期主义的公司高管和投资者,就像一对舞伴,因各自特性而相互吸引。布希为培育长期思维投资者群体开出的药方是:在信息披露的频率和内容上都要深思熟虑。他写道:“我的研究表明,信息披露方式的改变,有望将公司的投资者结构从短线交易者转向更具耐心的资本。这种转变将解除部分追求短期业绩的外部压力,并鼓励管理者将注意力重新聚焦到建立以长期价值最大化为导向的文化上。”28
In effect, corporate executives and investors who suffer from short-termism are partners in a dance who are attracted to one another based on their characteristics. Bushee’s prescription to cultivate an investor base with a long-term view is to be thoughtful about disclosure, both in frequency and content. He writes, “my research suggests that changes in disclosure practices have the potential to shift the composition of a firm’s investor base away from transient investors and toward more patient capital. This shift will remove some of the external pressures for short-term results and encourage managers to return their focus to establishing a culture based on long-run value maximization.”28
我们的研究还揭示了另一个与此相关的联系。图表 3 显示,各行业的平均资产寿命与董事会评分(Board Score)之间存在密切关系——这是我们 HOLT® 团队开发的一项衡量公司治理质量的指标。HOLT 分析师梳理了 1500 家公司的委托书,对良好的治理实践(长期导向、经济上合理的措施)给予加分,对不良实践(信息披露有限、仅关注短期目标)则扣分。
Our research revealed another link that bears on this discussion. Exhibit 3 shows that there is a close relationship between average asset life by sector and the Board Score, a measure of the quality of corporate governance that our HOLT® team developed. HOLT analysts combed proxy statements for 1,500 companies and granted points for good governance practices (long-term orientation, economically sound measures) and subtracted points for poor practices (limited disclosure, short-term targets only).29
表 3:各板块平均资产年限与 HOLT 董事会评分
Exhibit 3: Average Asset Life and HOLT Board Score by Sector
3 r = 0.85 Materials
3 r = 0.85 Materials
2 Industrials Telecom
2 Industrials Telecom
HOLT 董事会评分 必需消费品 1 医疗保健 能源 可选消费品
HOLT Board Score Cons Staples 1 Healthcare Energy Cons Disc
| 0 | IT |
|---|---|
| -1 | |
| 6 8 10 12 14 16 18 20 | |
| 资产寿命 |
0 IT -1 6 8 10 12 14 16 18 20 Asset Life
来源:瑞士信贷 HOLT。
Source: Credit Suisse HOLT.
注:不含金融与公用事业公司;资产寿命和董事会评分数据均为 2013 年值。
Note: Excludes financials and utilities; Asset life and Board Score figures are for 2013.
对这项发现的一种解读是,资产寿命长的行业,公司治理往往优于资产寿命短的行业。在长期投资的监督最为关键之处,公司治理也最为完善。
One interpretation of this finding is that corporate governance tends to be better in sectors where asset lives are long than in sectors where asset lives are short. Where monitoring long-term investments is most relevant, corporate governance is the best developed.
总而言之,对短期主义的恰当检验应当通过依赖市场定价过程的结果,而非个体的观点,来应对微观-宏观问题。尽管许多市场参与者觉得市场是短期导向的——这种感受几十年来一直都有——但资产价格并不支持这一感觉。
To summarize, a proper test of short-termism should address the micro-macro problem by relying on the outcome of the market pricing process rather than the views of individuals. While many constituents feel the market is short-term oriented—a feeling that has been expressed through the decades—asset prices don’t support this sense.
不过,随着市场构成从更依赖长期资产的公司转向资产寿命较短的公司,合适的评估期也有所缩短。这并非短视行为,而是对基础经济变化的一种清醒反映。从平均水平看,资产寿命最长的那些行业,其治理似乎也最为完善。
That said, the appropriate period of evaluation has shrunk as the composition of the market has shifted from companies more reliant on long-term assets to companies with shorter asset lives. This is not short-termism but rather a clear-eyed reflection of the changes in the underlying economy. It also appears that governance is strongest, on average, for those sectors with the longest asset lives.
最后,虽然短线投资者的确只看短期,但他们会被那些提供大量信息事件的公司所吸引。正是这些公司看起来最愿意牺牲能创造价值的投资,去换取短期业绩。但这场游戏终究有限,因为现实最终会追上,短线投资者会抛售这些股票。
Finally, while transient investors do take a short view, they are attracted to companies that provide lots of information events. It is these companies that appear most willing to trade value-creating investments to deliver short-term results. But that game is limited, as reality eventually catches up and transient investors dump the stocks.
正如沃伦·巴菲特在 1979 年伯克希尔·哈撒韦致股东的信中所说:“在很大程度上,公司会获得它们所寻求且应得的股东群体。如果它们将思考和沟通专注于短期业绩或短期股市后果,那么很大程度上,它们吸引来的股东也会关注同样的事情。而如果它们以玩世不恭的态度对待投资者,那么最终,这种玩世不恭也极有可能被投资界反弹回来。”³⁰ 研究在很大程度上支持了这一观点。
As Warren Buffett said in the Berkshire Hathaway letter to shareholders in 1979, “In large part, companies obtain the shareholder constituency that they seek and deserve. If they focus their thinking and communications on short-term results or short-term stock market consequences they will, in large part, attract shareholders who focus on the same factors. And if they are cynical in their treatment of investors, eventually that cynicism is highly likely to be returned by the investment community.”30 The research largely supports this view.
那些被过度使用却鲜少被审视的论点
Arguments that Are Overused and Under-Scrutinized
也许证明投资者短期主义最常引用的证据是股票持有期的缩短。31 人们哀叹,20 世纪 60 年代的持有期在六到七年之间,如今却不到两年。图 4 展示了自 1947 年以来的平均投资组合换手率。你用 1 除以换手率就能估算出持有期。例如,20% 的换手率相当于五年持有期(1/0.20 = 5)。按这个标准衡量,投资者的时间视野自 20 世纪 60 年代以来确实缩短了,但最近几年实际上有所延长,从一年增加到大约一年半。尽管如此,过去半个世纪里持有期的变化并不能有力地证明短期主义的存在。
Perhaps the most commonly cited evidence for investor short-termism is the shrinking holding period for stocks.31 The lament is that holding periods in the 1960s were in the range of six to seven years but are less than two years today. Exhibit 4 shows the average portfolio turnover rate since 1947. You impute the holding period by dividing one by the rate. For instance, a 20 percent turnover rate equals a five-year holding period (1/.20 = 5). By this measure, investor time horizons have shortened since the 1960s but have actually lengthened in recent years from one year to about one-and-a–half years. Still, the change in holding period in the last half century is a poor argument for short-termism.
下表 4:平均换手率(1947—2013 年)
Exhibit 4: Average Turnover Rate (1947- 2013)
120
120
100
100
年换手率(%)
Annual Turnover Rate (%)
原件此处是表格,PDF 抽取时列结构已丢失,下面只剩按列读出的数字,行列对应关系无法还原。核对数据请打开来源正文。
80 60 40 20 0 1947 1950 1953 1956 1959 1962 1965 1968 1971 1974 1977 1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013
80 60 40 20 0 1947 1950 1953 1956 1959 1962 1965 1968 1971 1974 1977 1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013
来源:博格尔金融市场研究中心;晨星公司、瑞信。
Source: Bogle Financial Markets Research Center; Morningstar, Credit Suisse.
首先,在投资组合构建中,与风险期限相关的是投资者暴露于某个资产类别的时间长度,而非持有某只股票或基金的具体时长。³² 可以这样理解:在一个基本有效的市场中,扣除成本之前,投资组合经风险调整后的超额收益的期望值大致为零。虽然频繁的操作会产生成本、侵蚀投资组合的回报,但暴露于资产类别的持续时间才是衡量投资者时间视野的恰当方式。因此,真正重要的是该资产类别的长期回报减去投资者所承担的成本。投资者赌的其实是长期结果的短期表现。
To begin, the holding period that is relevant in portfolio construction is the time an investor is exposed to an asset class, not how long an investor owns a particular stock or fund.32 Think of it this way: In a largely efficient market, the expected value of a portfolio’s risk-adjusted excess return is approximately zero, before costs. While lots of activity creates costs that diminish a portfolio’s return, the duration of the exposure to the asset class is the appropriate way to think about an investor’s time horizon. As a result, what matters is the long-term return of that asset class less costs the investor incurs. Investors make short-term bets on long-term outcomes.
另一个关键点是,过去半个世纪里,股票的所有权结构发生了巨大变化。五十年前,大多数股票由个人持有,机构资产管理行业才刚刚起步。如今,约 70% 的股票由机构持有。在上世纪 60 年代,个人投资者获取信息的渠道很差,训练不足,几乎没有机会使用电脑,面临繁重的税率,交易成本也很高。在这种情况下,他们交易不活跃也就不足为奇了。
Another essential point is that the ownership of stocks has changed a great deal in the past half century. Fifty years ago, individuals held most stocks and the institutional money management industry was just getting going. Today, about 70 percent of stocks are held by institutions.33 Individuals in the 1960s had poor access to information, limited training, little if any access to computers, onerous tax rates, and high transaction costs. Given the circumstances, it is little wonder they did not trade actively.
你可以回头看看附件 4,会发现年换手率最大的一轮持续增长发生在 1975 年至 1985 年间。原因是 1975 年 5 月 1 日股票交易佣金费率放开了管制。
If you return to exhibit 4, you will notice that the largest sustained increase in annual turnover occurred between 1975 and 1985. The reason for this is the deregulation of stock commission rates on May 1, 1975.
在那一天之前,纽约证券交易所和其他交易所设定的最低佣金始终具有约束力。附表五显示了 1959 年至 1968 年间每 100 股的最低佣金水平。34 1975 年 5 月 1 日之后,经纪公司可以基于价格展开竞争。竞争与技术进步的叠加,大大降低了交易成本。
Prior to that date, the New York Stock Exchange and other exchanges set minimum commissions that were always binding. Exhibit 5 shows the minimum commission per 100 shares that prevailed from 1959 through 1968.34 After May 1, 1975, brokerage firms could compete based on price. Competition paired with technological advances has cut transaction costs dramatically.
表 5:20 世纪 60 年代的交易成本 交易金额 每 100 股最低佣金 100-400 美元 3 美元 + 交易金额的 2%(最低 6 美元)
Exhibit 5: Transaction Costs in the 1960s Amount of transaction Minimum commission per 100 shares $100-400 $3 + 2% of amount traded ($6 minimum)
400-2400 美元:7 美元 + 交易金额的 1%;2400-5000 美元:19 美元 + 交易金额的 0.5%;5000 美元以上:39 美元 + 交易金额的 0.1%。来源:查尔斯·M·琼斯,《一个世纪的股市流动性与交易成本》,工作论文,2002 年 5 月 22 日。
$400-2,400 $7 + 1% of amount traded $2,400-5,000 $19 + 0.5% of amount traded $5,000+ $39 + 0.1% of amount traded Source: Charles M. Jones, “A Century of Stock Market Liquidity and Trading Costs,” Working Paper, May 22, 2002.
举个例子,在 20 世纪 60 年代中期,交易 10000 股价格为 40 美元的股票,每股交易成本为 0.43 美元。
As an example, trading 10,000 shares of a $40 stock would have cost $0.43 per share in the mid-1960s.
如今的交易成本对机构投资者而言大约只有那个比例的百分之一。此外,当时的买卖价差远大于现在,资本利得税率也更高。因此,长期持股很可能是缺乏经验的个人投资者面对较高交易成本的结果,而非出于某种善意的长期主义视角。
Trading costs today are roughly 1/100th of that rate for institutional investors. Further, the bid-ask spreads were substantially wider then than now and capital gains tax rates were higher. So it is plausible that the long holding period was the consequence of unsophisticated individual investors facing relatively significant transaction costs rather than some benevolent long-term view.
当然,交易成本的大幅下降使得短期投资策略变得可行。像文艺复兴科技(Renaissance Technologies)这样的公司,在 1960 年代或 1970 年代根本无法存在。市场好比生态系统,时间期限和投资策略的多样性往往有利于健康运转。35 问题在于:那些批评短期主义的人,有谁愿意拿今天市场和商业所拥有的低成本、先进技术和成熟度,去换回过去那些更高的成本、更落后的技术和更低端的水平?基于更短持有期来抨击短期主义的论点,需要先认同这种取舍。
Of course, the sharp reduction in transaction costs allows short-term investment strategies to be viable. Firms such as Renaissance Technologies could not have existed in the 1960s or 1970s. Markets are akin to ecosystems, where diversity of time horizons and investment strategies tends to be healthy.35 The question is: Who among the short-termism critics would trade today’s markets and businesses for the higher costs, inferior technology, and lesser sophistication of the past? Arguments for short-termism based on shorter holding periods need to endorse such a trade-off.
那些指责短期主义盛行的人,常常引用证券分析之父本杰明·格雷厄姆的一句话:“从短期看,市场是一台投票机;从长期看,它是一台称重机。”言下之意是,短期内情绪会过热,但随着时间的推移,市场会揭示出真实价值。格雷厄姆的这句话听起来像是为短期主义辩护,但放在那个语境里却经不起推敲。
Those who claim the pervasiveness of short-termism frequently cite a phrase attributed to the father of security analysis, Ben Graham: “In the short run the market is a voting machine, in the long run it is a weighing machine.”36 The connotation is that in the short term emotions run hot but over time the market reveals true value.37 Graham’s line sounds like a case for short-termism but doesn’t stand up to scrutiny in that context.
问题在于:今天的“短期”其实就是昨天的“长期”。假设你选定三年作为“长期”,这意味着到那时市场会变成一台称重机³⁸。按同样的逻辑,三年前你也可以说今天就是“长期”。这个说法本身,即便算有点意义,对“短期主义”的说明也少得可怜。
Here’s the problem: Today’s short term was yesterday’s long term. Say you pick three years as the long term, which suggests that the market will be a weighing machine then.38 By the same logic you would have said three years ago that today is the long term. The phrase itself says very little, if anything, about short-termism.
对格雷厄姆这句话更合理的解释是:市场(投票机)会周期性地出现错误定价,但价格与价值总体上会随时间趋同(称重机)。其论述隐含的前提是:市场并非完全有效,但它的有效程度足以最终识别出价值。确实,如果市场永远无效,那就没有投资的理由,因为你没有理由相信价格与价值之间的差距会收窄。主动型投资者必须同时相信市场的无效与有效,才能为自己的职业提出一个可信的理由。
A more reasonable way to interpret Graham’s line is that there are periodic mispricings in the market (voting machine) but that price and value generally converge over time (weighing machine). Implicit in the argument is that markets are not perfectly efficient, but they are sufficiently efficient to eventually recognize value. Indeed, if markets were perpetually inefficient, there would be no reason to invest because there would be no reason to believe that gaps between price and value would ever narrow. Active investors must believe both in inefficiency and efficiency to make a credible case for their vocation.
市场效率又如何?市场在吸收新信息方面表现如何?同样,有一种看法认为,市场在消化新信息(如财报发布或并购公告)时采取了短期视角。但实证证据表明,市场在反映信息方面相当出色,而发现系统性且可利用的偏差并不容易。
What about market efficiency? How good are markets at incorporating new information? Here again, there is a perception that the market takes a short-term view as it digests new information such as earnings releases or merger announcements. But the empirical evidence suggests the market is quite good at reflecting information and that detecting systematic and exploitable biases is not easy.
第一个研究方向考察的是,在特定公告或事件发生时,盈利与现金流出现背离的案例。换句话说,当盈利朝一个方向走,现金流朝另一个方向走的时候,股市会跟从哪一个?研究人员详细研究过的案例包括:存货记账方法从先进先出法改为后进先出法(盈利下降,现金流上升)、对员工股票期权计入费用(盈利下降,现金流不受影响),以及采用一项停止摊销商誉的会计准则(盈利上升,现金流不受影响)。在每一个案例中,研究都表明市场能够看穿盈利带来的影响,并恰当地反映现金流。当盈利与现金流出现背离时,市场倾向于跟随现金流而行。
The first strand of research examines cases where earnings and cash flow diverge based on a particular announcement or development. In other words, when earnings go one direction and cash flow another, which does the stock market follow? Instances that researchers have examined in detail include a shift from first-in, first-out to last-in, first-out accounting for inventory (earnings down, cash flow up), expensing employee stock options (earnings down, cash flow unaffected), and the adoption of an accounting rule that ceased goodwill amortization (earnings up, cash flow unaffected). In each instance, the research shows that the market was able to look through the earnings impact and properly reflect the cash flow. When earnings and cash flow diverge, the market tends to follow the cash.39
高管们抱怨每季的每股收益(EPS)游戏,在这种游戏中,公司一年中每个季度都感到被迫要达成或超出市场对每股收益的一致预期。迈克尔·戴尔,这位以自己名字命名公司、并在上市 25 年后将其私有化的首席执行官,将这种压力称为“90 天倒计时钟”。研究显示,市场通常会奖励那些因创造价值的投资而导致盈利低于预期的财报;而那些基于非经济因素超出预期的高收益,则反应不佳。
Executives complain about the quarterly earnings per share (EPS) game, where the company feels compelled to meet or exceed the consensus forecast for EPS every quarter of the year. Michael Dell, the CEO of the company that bears his name and that he took private after being public for 25 years, calls the pressure “the 90-day shot clock.”40 Research shows that the market generally rewards earnings that are below expectations as the result of value-creating investments. Earnings that exceed the consensus based on non-economic factors are received poorly.
真正未达预期的公司领导者必须认识到,盈利公告是市场用来修正长期现金流预期的新信息。事实上,适度的盈利失望之所以能导致股价大幅下跌,唯一途径就是市场下调了其长期现金流预测。有一篇关于这一主题的学术论文得出了如下结论:“[我们的研究结果]表明,股价对短期盈利变化的反应,仅在其作为长期盈利潜力的信号时才会发生。”41
Leaders of companies that truly miss expectations must recognize that the earnings announcement is new information that the market uses to revise the expectations for long-term cash flow. Indeed, the only way that a modest earnings disappointment can lead to a large downward price move is if the market revises down its long-term cash flow forecasts. One academic paper on the topic concluded as follows: “[our results] suggest that share prices respond to changes in short-term earnings only insofar that they are signals of long-term earnings potential.”41
并购公告是一个高管们深感市场反应过于短视的领域。例如,2001 年惠普公司宣布收购康柏电脑后,投资者纷纷抛售其股票,时任惠普首席执行官卡莉·菲奥莉娜对此评论道:“做出这样的决策,不能以短期股价来评判它是否成功。”42
M&A announcements are an area where executives feel the market’s reaction is particularly short-term oriented. For example, after investors dumped the shares of Hewlett-Packard Company following the firm’s announcement to acquire Compaq Computer Corporation in 2001, HP’s former CEO, Carly Fiorina, remarked, “You don’t make this kind of move and judge its success by the short-term stock price.”42
拥有学术背景的咨询顾问马克·西罗尔(Mark Sirower)和苏米特·萨尼(Sumit Sahni)研究了 302 起并购交易给股东带来的总回报——与行业同行对比——分别考察了短期(五天)和较长期(一年)的表现。43 他们发现,市场对其中 103 起交易(占 34%)在短期内给出了正面反应,而一年后仍有 52 起保持正面。在最初市场反应为负面的 199 起交易(占 66%)中,一年后有 133 起依然维持负面。
Mark Sirower and Sumit Sahni, consultants with an academic background, examined total shareholder returns, relative to industry peers, for 302 M&A deals both in the short run (five days) and over a longer period (one year).43 They found that the market had a positive reaction to 103 of the deals (34 percent) in the short term and that 52 of those deals remained positive a year later. Of the 199 deals where the market’s reaction was initially negative (66 percent), 133 remained negative after a year.
对这些结果的一种合理解读是:市场的初始反应并非总是正确的,但似乎也不存在系统性的偏差。正如一位学者总结的那样:“现有的证据表明,市场的初始反应是预测交易结果走向的一个相当可靠的指标。”44
One reasonable interpretation of these results is that the market is not always correct in its initial reaction but does not seem to have a systematic bias. As one academic summarized, “the evidence we have suggests that the initial market response is a fairly reliable predictor of how the deals are going to turn out.”44
短期主义信徒最困惑的,莫过于那些声称自己着眼长远、市场也会据此定价的公司。其中最典型的代表,是由创始人杰夫·贝佐斯领导的国际电商公司亚马逊。在 1997 年——公司上市那年——贝佐斯在致股东信中阐述了公司的理念。公司每年都会重登这封信,以此表明其经营方针始终如一。
Believers in short-termism are particularly flummoxed by companies that say they take a long-term view and that the market prices accordingly. The poster child for this is international electronic commerce company, Amazon.com, led by its founder, Jeff Bezos. In the company’s letter to shareholders in 1997, the year the company went public, Bezos laid out the company’s principles. The company republishes the letter each year as a reminder that the company’s approach remains steadfast.
贝佐斯在谈到关注客户之后,第二个要点是:“我们会继续根据地长期市场领导地位的考量来做投资决策,而不是看短期盈利或华尔街的短期反应。”[45] 时至今日,这家公司仍遵守这一原则,持续大量投资。尽管当前利润微薄,投资者却给了它一个非常可观的市值。
Bezos’s second point, following one about customer focus, is this: “We will continue to make investment decisions in light of long-term market leadership considerations rather than short-term profitability considerations or short-term Wall Street reactions.”45 The company continues to invest heavily today, consistent with the principle, and investors have accorded the business a substantial market capitalization despite scant current profits.
市场愿意以长远眼光看待问题,这让一些记者几乎难以置信。“只有华尔街的宠儿——一家高级管理层能赢得市场信心的公司——才能像亚马逊那样大胆行事。”一位记者写道。另一位则表示:“亚马逊之所以被容许这么做,是因为它已经让股东相信,一切最终都会好起来的。”
The market’s willingness to take the long view has left some journalists bordering on incredulous. “Only a Wall Street darling, a firm whose senior leadership has the confidence of markets, could get away with being as daring as Amazon is,” wrote one.46 Another said, “Amazon has this permission because it has trained its shareholders to believe that everything will work out in the end.”47
亚马逊能否不负其股价期望,有待观察。但即便是这个世上的“亚马逊之流”的存在,也给那些担忧猖獗短期主义的人制造了一个难题。
It remains to be seen whether Amazon.com lives up to the expectations of its stock price.48 But even the existence of the Amazon.com’s of the world create a problem for those who fret about rampant short-termism.
一家上市 17 年的公司,如果仅仅因为“培训”了股东才受人喜爱,那就不符合一个无法放眼长期的市场叙事。实际上,亚马逊的第二大股东持有大量股份,且以长期持股闻名——是一位典型的坚定投资者。贝佐斯这样总结他的哲学:“就投资者而言,我们的职责是极其清晰地阐明我们的策略,然后由投资者自行选择。”49 或许,亚马逊得到了它应得的股东群体。
The idea that a company that has been public for 17 years is loved only because it has trained its shareholders doesn’t fit the story of a market that can’t take a long-term view. Indeed, Amazon.com’s largest shareholder, after Bezos, owns a sizeable stake and is known for holding stocks for a long time—a classic dedicated investor. Here’s how Bezos sums up his philosophy: “As far as investors go, our job is to be superclear about our approach, and then investors get to self-select.”49 Perhaps Amazon.com has obtained the shareholder constituency it deserves.
个人层面上的短视主义问题何在
Where Short-Termism Is a Problem for Individuals
尽管我们一直认为短期主义的问题并不像表面看起来那么严重,但投资行业仍有许多行为可以改进。这些行为往往源于组织或心理层面的缺陷。有必要强调一点:微观层面存在错误,并不意味着宏观层面缺乏效率。但我们在某些方面确实可以做得更好。
While we’ve argued that short-termism is not the problem is appears to be, there are still a number of behaviors in the investment industry that we can improve. These tend to be the result of either organizational or psychological shortcomings. It’s important to underscore that just because there are micro mistakes doesn’t mean that there is macro inefficiency. But there are ways for us to get better.
经典代理理论讨论的是这样一种情形:代理人(agent)的利益与所服务的委托人(principal)的利益不一致,从而促使代理人优先考虑自身利益。例如,作为代理人的公司高管,可能会为自己争取昂贵的额外福利,比如乡村俱乐部会员资格、公务飞机和豪华办公室,从而减少了作为公司委托人的股东所能获得的利润。在投资管理领域,类似的情况是投资经理(代理人)做出决策以增加管理费,包括在热门领域推出新产品,或在市场营销上投入大量资源,而不是专注于为他们的投资者(委托人)创造超额回报。
Classic agency theory addresses the case when the interests of an agent differ from those of the principal he serves, encouraging the agent to put his interests first. For instance, executives of a firm, as agents, may grant themselves expensive perquisites such as country club memberships, corporate jets, and lavish offices, leaving less profit for the shareholders, the firm’s principals. The parallel in money management is when investment managers (agents) make decisions to grow fees, including launching new products in hot areas or spending substantial resources on marketing, rather than focus on delivering excess returns for their investors (principals).50
但代理人利用委托人的利益并非唯一的问题。考虑一个未得到充分重视的严重问题:投资者对他们所雇用的投资经理产生的影响。大量研究表明,投资者倾向于在基金业绩良好后买入,在业绩不佳后卖出。来自投资者的这些资金流放大了基金的业绩。例如,最近的研究显示,获得正向资金流的对冲基金倾向于买入其投资组合中已经持有的资产,推高资产价格,并导致业绩持续向好。这个过程可能需要长达两年的时间才能完全逆转。研究人员估计,对冲基金行业三分之一的阿尔法(alpha)来自这些资金流。
But agents taking advantage of principals isn’t the only problem. Consider a serious issue that doesn’t get enough attention: The influence investors have on the investment managers who serve them. Substantial research shows the proclivity of investors to buy after a fund has done well and to sell following poor results.51 These flows from investors amplify the results of the fund. For example, recent research shows that hedge funds that have positive flows tend to buy what’s already in their portfolio, pushing up asset prices and leading to continued good results. This process can take up to a couple of years to reverse fully. Researchers estimate that one-third of the alpha from the hedge fund industry is the result of these flows.52
在上涨时起作用的机制,在下跌时也同样起作用。资金流出迫使基金经理卖出资产,导致更差的业绩。因此,投资经理可能不愿意投资那些长期回报优异但短期波动巨大的资产,因为他们知道,糟糕的短期业绩可能会促使不满的投资者撤离基金。
What works on the upside also works on the downside. Outflows force selling and additional poor results. As a consequence, investment managers may be unwilling to invest in assets that promise excellent returns in the long term but are volatile in the short run because they know that poor near-term results may prompt disgruntled investors to leave the fund.
针对这个问题的明显答案是,将基金构建为封闭式基金,这样可以防止新资金流入或流出;而非开放式基金,后者允许资金进出。但开放式基金结构为投资经理在取得良好业绩(即使是靠运气得来的)时,嵌入了一个宝贵的期权。这个期权就是增加管理资产规模的机会,从而带来更高的管理费和更大的利润。一种投资行业的模型认为,有技能的经理人会吸纳资产,直到其预期的风险调整后超额回报(即阿尔法)趋近于零。
The obvious answer to this problem is to structure a fund as closed-end, which prevents new money from coming in or out, versus open-end, which allows money to move in and out.53 But the open-end structure embeds a valuable option for the investment manager in the case of good results, even if they come through luck. The option is the opportunity to increase assets under management, which leads to higher fees and larger profits. One model of the investment industry suggests that skillful managers take on assets to the point where their expected risk-adjusted excess return, or alpha, approaches zero.54
关键在于,不良行为可能双向发生。投资经理可能会做一些对投资者不利的事情,但投资者也会做一些阻碍投资经理采取长远眼光的事情。
The idea is that poor behavior can run in two directions. Investment managers may do things that are not best for their investors, but investors also do things that hamper the investment manager’s ability to take a long-term view.
正如我们之前看到的,企业表示,关注短期的压力来自投资经理。而投资经理反过来又说,压力来自他们的投资者。对两者关系的一项仔细分析发现,短期投资者会导致投资经理也变得短视。而且,基金经理感受到的压力越大,他的投资视野就越短。
As we saw earlier, companies say that the pressure to focus on the short term comes from investment managers. Investment managers, in turn, say the pressure is from their investors. A careful analysis of the connection found that short-term investors cause short-termism in investment managers. And the more pressure a fund manager feels, the shorter is his or her investment horizon.55
你可能会预期,平均而言,不如养老基金、捐赠基金和主权财富基金等机构投资者精明的个人投资者,会呈现出追涨杀跌的模式。数据也证实了这一点。先锋集团(Vanguard Group)的创始人兼前首席执行官约翰·博格尔(John Bogle)计算得出,由于主动管理型共同基金的投资者在不当的时机进行交易,他们的年化收益率比简单的买入并持有策略低 120 个基点。
You might expect a pattern of buying high and selling low from individual investors who are less sophisticated, on average, than institutional investors such as pension funds, endowments, and sovereign wealth funds. The numbers bear that out. John Bogle, founder and former CEO of the Vanguard Group, calculates that because investors in actively-managed mutual funds trade at inopportune times, they earn 120 basis points less per year than they would with a simple buy-and-hold strategy.56
但这种业绩拖累并不局限于散户。一项针对机构投资者长达二十年的研究发现,他们的行为与个人投资者如出一辙。研究人员得出结论,这些控制着数千种产品的机构,由于追涨杀跌,牺牲了 1700 亿美元的价值。其中三分之一的损失源于在不同资产类别之间转移,比如从股票转向债券;另外三分之二则源于在同一资产类别内更换基金经理。
But that performance drag isn’t limited to mom and pop. A study of institutional investors over twenty years found that they do much the same as individuals. The researchers concluded that these institutions, who control thousands of products, sacrificed $170 billion in value as a result of buying high and selling low. One-third of this slippage in value is the result of moving from one asset class to another, say from stocks to bonds, and the other two-thirds is from switching from one manager to another within an asset class.57
专业投资者知道,短期业绩的波动太大,无法依赖年度数据。因此,机构投资行业中最常见的评估期大约是三年。但一种统计方法表明,你需要超过十几年的业绩数据才能有把握地断定一位基金经理具备技能。更长的期限让你能更好地评估技能,但也伴随着被一位没有技能的基金经理拖累的风险。那么,最佳评估期是多长呢?
Professional investors know that there is too much variance in short-term results to rely on annual figures. As a result, the most common evaluation period in the institutional investment industry is about three years. But one statistical approach suggests that you need more than a dozen years of results to confidently conclude that a money manager is skillful.58 Longer periods allow you to better assess skill but also carry the risk of being stuck with an unskillful manager. So what evaluation period is best?
三位研究人员着手回答了这个问题。他们没有依赖历史数据,而是使用了一种模拟方法。模拟的价值在于,你可以根据不同的初始假设来评估一系列结果。他们的模型包含了 1000 位投资经理,并赋予其中 10% 的人以技能。然后,他们创建了一批首席投资官(CIO),这些 CIO 使用基于其性格的算法来聘用和解雇投资经理。
A trio of researchers set out to answer this question.59 Rather than relying on historical data, they used a simulation. The value of simulation is that you can evaluate a range of outcomes given different starting assumptions. Their model included 1,000 investment managers, and they endowed 10 percent of them with skill. They then created a population of chief investment officers (CIOs) who used algorithms, based on their personalities, to hire and fire investment managers.
例如,“冷酷的短期”CIO 只雇用上一年度排名前 10% 的经理,解雇所有管理资产组合下跌超过 10% 的经理,并且从不重新雇用他们。
For example, the “ruthless short-term” CIOs only hired managers who finished in the top 10 percent in the prior year, fired all managers who oversaw a portfolio that dipped 10 percent, and never rehired managers.
“忠诚的长期”CIO 雇用过去 5 年排名前 10% 的经理,解雇过去 5 年排名后 10% 的经理,并且会重新雇用那些重回前 10% 的经理。
The “loyal long-term” CIOs hired managers who were in the top 10 percent over 5 years, fired those who were in the bottom 10 percent over 5 years, and would rehire managers who were in the top 10 percent.
图表 6 显示了模拟在十年期内的结果。长期导向的 CIO 的表现优于短期导向的 CIO 和买入并持有的 CIO。而那些“警惕的长期”CIO——他们在淘汰经理方面比“忠诚的长期”CIO 更为积极主动——表现最佳。表现最佳的评估期长于三年。研究人员得出结论:“最有利可图的耐心程度,与当前行业实践中的水平大相径庭。”
Exhibit 6 shows the results of the simulation over a ten-year period. The long-term CIOs outperformed both the short-term CIOs and the buy-and-hold CIOs. And the watchful long-term CIOs, who were more proactive in pruning managers than the loyal long-term CIOs, came out on top. The evaluation period that worked best was longer than three years. The researchers conclude that, “the most profitable degree of patience is very different from that found in current industry practice.”
图表 6:短期主义者跑输警惕的长期投资者
Exhibit 6: Short-Termers Underperform Watchful Long-Term Investors
警惕的长期
Watchful Long-Term
忠诚的长期
Loyal Long-Term
买入并持有
Buy and Hold
宽容的短期
Forgiving Short-Term
冷酷的短期
Ruthless Short-Term
0 2 4 6 8 10 12 扣除退出成本的年化收益率(百分比)
0 2 4 6 8 10 12 Annualized Returns Net of Exit Costs (Percent)
来源:David L. Donoho, Robert A. Crenian, and Matthew H. Scanlan, “Is Patience a Virtue? The Unsentimental Case for the Long View in Evaluating Returns,”《投资组合管理期刊》,2010 年秋季刊,第 115 页。
Source: David L. Donoho, Robert A. Crenian, and Matthew H. Scanlan, “Is Patience a Virtue? The Unsentimental Case for the Long View in Evaluating Returns,” Journal of Portfolio Management, Fall 2010, 115.
追涨杀跌的模式,在个人和机构投资者身上都很明显,这是短视行为的一个典型例子。其背后的原因是什么?对个人而言,答案可能是心理因素。小投资者容易受到近因偏差(recency bias)的影响,即在评估未来时倾向于过度强调近期经历。因此,例如,当一只股票上涨时,我们预期它会继续上涨。一般来说,投资者倾向于在今天去做他们在不久之前本该做的事情。
The pattern of buying high and selling low, which is clear for individuals and institutions, is a good example of short-termism. What’s behind it? For individuals, the answer is probably psychological. Small investors can suffer from recency bias, the tendency to overweight recent experience in assessing the future. So, for example, when a stock is going up, we expect it to continue going up. As a general rule, investors want to do today what they should have done in the recent past.
机构投资者应该更为精明,但往往犯同样的错误。这里,部分原因可能是组织层面的。代理理论专注于代理人和委托人之间的利益冲突。但事实上,在机构世界中,很多互动是代理人与代理人之间,甚至是代理人与代理人再到代理人之间进行的。以一家由投资委员会监督的中等规模大学捐赠基金为例。这时的委托人是大学及其社区。投资委员会(代理人)通常会聘请一家咨询公司(代理人)来寻找一位投资经理(代理人)。在这条链条的每一步,代理人都被期望做一些事情。但经验表明,做得更少通常会让委托人得到更多。
Institutional investors should be more sophisticated but often make the same mistake. Here, part of the explanation may be organizational. Agency theory is devoted to the conflict of interests between agents and principals. But in fact a lot of the interaction in the institutional world is agent to agent, or even agent to agent to agent. Take, for example, a modest university endowment that an investment committee oversees. The principal in this case is the university and its community. It would be common for the investment committee (agent) to hire a consulting firm (agent) to find a money manager (agent). Each step along the way, the agents are expected to do something. But experience shows that doing less generally leaves the principals with more.
再次强调,这些微观层面的行为与一个宏观结果——即认可长期价值的股票市场——可能是一致的。但代理人的利益以及他们带来的成本,可能会损害委托人在市场上获得最终回报。
Again, these behaviors at the micro level can be consistent with a macro outcome, the stock market, which recognizes the long term. But the interests of agents and the costs they impose can detract from the final returns that the principals earn in the market.
另一个导致短视的因素是压力。调查显示,美国人将金钱、工作、人际关系和家庭责任列为常见的压力来源。毫不奇怪,这些都是心理压力源。压力来自于缺乏可预测性和掌控感。鉴于市场存在大量由运气造成的波动,而且投资者会因业绩不佳而迅速撤资,投资管理行业充满了压力。
Another factor that contributes to short-termism is stress. When surveyed, Americans cite money, work, relationships, and family responsibilities as common causes of stress.60 Not surprisingly, these are all psychological stressors. Stress comes from a sense of a lack of predictability and control. Given that markets have a lot of variance that arises by luck and that investors are quick to yank funds for underperformance, investment management has a lot of stress.
我们的压力反应系统主要是为了应对物理威胁而设计的,比如那个盯上你当午餐的凶猛大捕食者。压力反应会导致血压升高,能量被调动到最需要的组织,并提高短期记忆和视力的敏锐度。同样重要的是,身体会切断对仅与长期相关的系统的资源供应,包括消化系统、免疫系统和生殖系统。压力反应让你准备好应对非常短期的挑战,并且在紧急情况下效果极佳。
Our stress response is designed primarily to deal with physical threats, such as the big fierce predator that has made you the target for lunch. The stress response causes a rise in blood pressure, mobilization of energy to the tissues that need it most, and heightened acuity of short-term memory and vision. Just as importantly, the body shuts off resources to systems that are relevant only for the long term, including those for digestion, immunity, and reproduction. The stress response gets you ready to deal with the very short term, and works brilliantly in an emergency.
关键在于:你的身体无法区分物理刺激和心理刺激。它们会触发相似的生理反应。如果你长期处于压力之下,你的身体就会出问题。高血压、消化问题、疾病、生育问题。神经生物学家、斯坦福大学著名的压力研究者罗伯特·萨波尔斯基(Robert Sapolsky)在谈到压力引起的反应时说道:“它们通常是短视的、低效的,并且是捡了芝麻丢了西瓜。”简而言之,压力会导致短视。
Here’s the key: Your body doesn’t distinguish between physical and psychological provocations. They trigger similar physiological responses. If you are chronically stressed, your body breaks down. High blood pressure. Digestive problems. Sickness. Reproductive issues. Here’s what Robert Sapolsky, a neurobiologist at Stanford University and renowned stress researcher, says about the things that occur in reaction to stress, “They are generally shortsighted, inefficient, and penny-wise and dollar-foolish.”61 In a nutshell, stress causes short-termism.
这与投资的关系可以通过“短视损失厌恶”(myopic loss aversion)这个概念来理解。这个概念由两位经济学家施洛莫·贝纳茨(Shlomo Benartzi)和理查德·塞勒(Richard Thaler)提出,用以解释股权风险溢价。股权风险溢价是指股票在一段时间内相对于债券的超额回报。这个溢价过去一直高于理论预测值,令金融经济学家感到困惑。
This relates to investing through the concept of myopic loss aversion, an idea that two economists, Shlomo Benartzi and Richard Thaler, developed to explain the equity risk premium. The equity risk premium is the return that stocks earn in excess of bonds over time. It had been higher than theory suggested, puzzling financial economists.62
贝纳茨和塞勒解决这个问题的方法结合了两个概念。第一个是损失厌恶(loss aversion),它指出人类遭受损失时的痛苦程度,大约是获得等量收益时快乐程度的两倍。所以,你因为损失 10 美元而感到沮丧的程度,是你因为捡到 10 美元而感到高兴的程度的两倍。当然,这个比例因人而异,因为有些人比其他人对损失更敏感,而且我们个人的比例也会因近期经历而变化。在连续十天上涨后亏损,与在连续十天下跌后亏损,感觉是完全不同的。
Benartzi and Thaler’s approach to the problem combines two concepts. The first is loss aversion, which says that humans suffer from losses roughly twice as much as they enjoy comparable gains. So you are twice as upset at losing $10 as you are happy at finding $10. Of course, the ratio for each of us is different because some of us feel losses more acutely than others, and our own personal ratio varies as a result of our recent experience. Losing money after ten days of gains does not feel the same as losing money after ten days of losses.63
第二个概念是短视(myopia),在这里指的是你查看投资组合的频率。股票市场长期来看趋于上涨,但过程中充满了许多曲折和波动。因此,你在一个小时内看到股票组合盈利的概率略高于 50%,一天内稍高于 51%,一周内约为 53%,一年内接近 75%。而把时间拉长到 10 年或更久,你看到赚钱的概率几乎接近 100%。
The second idea is myopia, or in this case how frequently you look at your portfolio. The stock market tends to go up over time, but does so with lots of squiggles and turns along the way. So the probability that you will see a gain in your stock portfolio is just in excess of 50 percent in an hour, a shade over 51 percent for a day, about 53 percent for a week, and almost 75 percent for a year. Go out 10 years or more and the probability that you’ll see a profit is very close to 100 percent.
把这几条结合起来,结果是这样的:你翻看投资组合越频繁,就越可能看到亏损,从而饱受损失厌恶之苦。因此,那些天天查看投资组合的人,会比那些不常查看的人要求更高的回报来补偿这种折磨。换句话说,长期投资者愿意为同一资产支付比短期投资者更高的价格。64
Here’s what happens when you put those ideas together: The more frequently you look at your portfolio, the more likely you are to see losses and hence suffer from loss aversion. As a consequence, people who examine their portfolios all the time demand higher returns to compensate for their suffering than those who examine their portfolios infrequently. Said differently, long-term investors are willing to pay more than short-term investors for the same asset.64
贝纳茨与塞勒估算,与 1990 年代初期实际实现的股权风险溢价相匹配的评估周期大约为一年。没有人能完全规避损失厌恶感,但投资组合的评估频率是可以选择的。机构资金经理人常常觉得,自己如果长期跑输基准指数,职业生涯就会面临风险。同样,能够以更长远的眼光看待问题的投资者,则有机会获得超额风险调整回报。⁶⁵
Benartzi and Thaler estimate that the evaluation period consistent with the realized equity risk premium through the early 1990s was about one year. No one can entirely sidestep the sense of loss aversion, but frequency of portfolio evaluation is a choice. Institutional money managers often feel that they can’t underperform their benchmarks for long without putting their career at risk. By the same token, investors who can take a longer view have the opportunity to generate excess risk-adjusted returns.65
即便是在收益领域,人类的大脑也很难摆脱短期主义思维。例如,如果让人们选择今天拿 10 美元还是明天拿 11 美元,许多人会选择 10 美元。但如果你让他们在一年后拿 10 美元和一年零一天后拿 11 美元之间做选择,他们就会倾向于 11 美元。66 动物在食物选择上也会做出类似的权衡。67 看来,我们大脑的不同区域分别掌控着短期决策和长期决策。负责更多基础功能的边缘系统(limbic system)——其结构与其它动物相似——处理短期决策;而负责执行功能与规划的人脑前额叶皮层(prefrontal cortex)则做出长期决策。68
Even in the realm of gains, our minds struggle with short-termism. For example, if you give people a choice between $10 today and $11 tomorrow, many people select the $10. If you offer them $10 one year from now or $11 in one year and a day, they prefer the $11.66 Animals make a similar trade-off with food choices.67 It appears that different parts of our brains mediate short-term versus long-term decisions. Parts of the limbic system, which deals with more basic functions and is similar in structure to that of other animals, handle short-term decisions. Parts of the prefrontal cortex, an area of the human brain known for executive function and planning, make long-term decisions.68
选择架构是应对短视行为的一个有效机制。69 其核心理念是,向决策者呈现选项的方式会影响他/她最终的选择。例如,当人们需要在一次性支付与预期价值更高的年金之间做选择时,通常都会选择一次性支付。
Choice architecture is a useful mechanism to deal with short-termism.69 The idea is that the way choices are presented to a decision maker will influence how he or she decides. For example, given the choice between a lump sum payment and an annuity that has a higher expected value, individuals generally select the lump
70. 总结。通过运用选择架构,提供选项的机构可以将年金设为默认选项,仅在个人主动要求时才提供一次性支付。
sum.70 Using choice architecture, the organization offering the choices may grant the annuity by default and only provide the lump sum if the individual requests it.
如何避免短期主义陷阱
How You Can Avoid the Pull of Short-Termism
似乎存在广泛的共识,即短视行为确实存在,且其影响是有害的。短视行为的大部分证据建立在个人感知之上,而非股票市场本身的证据。此外,投资期限的缩短在一定程度上可能是资产寿命缩短的合理结果,这反映了全球经济的转型。事实上,资产寿命最长的行业,其公司治理质量似乎也最高。
There appears to be a broad consensus that short-termism exists and that its effects are deleterious. Much of the evidence for short-termism is based on the perceptions of individuals rather than on the evidence of the stock market itself. Further, some reduction in investment horizon may be a legitimate result of shortening asset lives, which reflect the shift in the global economy. Indeed, the quality of corporate governance appears to be highest for sectors that have the longest asset lives.
市场上似乎还存在一种筛选机制。也就是说,那些提供大量信息、愿意牺牲投资来达成短期目标的公司,会吸引同样目光短浅的短期股东。而那些像伯克希尔·哈撒韦这样专注于长期发展的公司,则会吸引那些与公司拥有相同长远眼光的忠实股东。
There also appears to be a sorting mechanism in place. That is, companies that provide lots of information and are willing to compromise investment to meet a near-term target attract transient shareholders who share their shortsightedness. Companies that focus on the long term, such as Berkshire Hathaway, appeal to dedicated shareholders who share the company’s long-term horizon.
以投资组合周转率来衡量投资者短期主义的观点存在两个问题。衡量投资者持有期的恰当标准,是投资者对某一资产类别的敞口持续时间,而非该类资产内部的交易量。此外,股票市场交易成本的大幅下降表明,低周转率更多是摩擦所致,而非远见使然。
The argument for investor short-termism based on portfolio turnover has a couple of problems. The proper measure of an investor’s holding period is the duration of the exposure to an asset class, not the amount of trading within that asset class. Further, the dramatic decline in transaction costs in the equity market suggests that low turnover was more due to friction than farsightedness.
总体来看,实证研究显示,股票市场对具有经济影响的新信息,其反映能力相当不错。在每股收益与现金流出现偏离的具体案例中,市场通常会跟随现金流走。尤其是对并购公告的分析表明,尽管市场的最初判断并非永远正确,但似乎并不存在系统性的偏差。
On balance, empirical research suggests that the stock market is reasonably good at reflecting new information of economic consequence. In specific instances when earnings per share and cash flow diverge, the market generally follows the cash. Analysis of M&A announcements, in particular, shows that while the market is not always correct in its initial assessment, there does not appear to be a systematic bias.
话虽如此,投资经理、公司和投资者在短期业绩上仍面临显著压力。71 这种压力源于组织结构和心理因素,虽有可取之处,但也可能导致糟糕的决策。以下是为各个群体应对这些压力提出的一些具体建议:
All of that said, there remains palpable pressure for investment managers, companies, and investors to perform in the short term.71 This pressure, which is the result of organizational structure and psychological factors, has some redeeming elements but can also lead to poor choices. Here are some specific recommendations to deal with those pressures for each constituency:
Investment Managers
Investment Managers
建立一个能带来优势的投资流程。这个流程本身可以是短期导向,也可以是长期导向。在市场中,我们两者都需要。但关键在于,你要清楚知道,为什么你相信市场对某项资产的定价出现了错误,以及你的流程如何能够持续识别出这类错误定价。投资能力建立在流程的基础之上,而流程能让你抓住别人看不到或无法利用的机会。
Create an investment process that results in edge. The process itself can be short- or long-term oriented. In markets we need both. But the key is to have a clear sense of why you believe that the market is mispricing an asset and how your process can identify such mispricings over time. Skill in the investment business is built on the foundation of process, and process allows you to take advantage of opportunities that others can’t see or exploit.
确保你的行为与流程保持一致。在向客户阐述其投资流程时,投资经理们通常强调他们希望达成的目标,而非实际发生的情况。一家投资机构应努力使其行动与公开宣称的流程相符。有充分证据表明,投资经理们的言论和实际行为之间存在差异。例如,近期一项针对 800 多只基金的分析发现,其中 65% 的基金投资组合换手率高于其预期水平,这意味着它们的交易比所宣称的更加频繁。请识别言行之间的差距,并采取措施弥补这些差距。
Make sure your behavior is congruent with your process. In communicating their process to clients, investment managers generally dwell on what they aspire to do rather than what actually happens. An investment organization should strive to make its actions congruent with its stated process. There is good evidence that what investment managers say and what they do are different. For instance, a recent analysis of more than 800 funds found that 65 percent of them had higher portfolio turnover than they expected to have, which means that they were trading more than they said they would.72 Identify gaps between words and actions and take steps to close them.
找到合适的客户。最理想的场景是:客户理解你所做的事,愿意在你看到机会时给你资金,只在前景不太有吸引力时才撤回资金。市场上的好机会往往出现在业绩糟糕之后,而糟糕的机会则出现在业绩出色之后。由于大多数客户都受近因偏差的影响,他们的行为恰恰与理想场景相反。正如我们所见,这种行为对业绩产生了影响。解决客户难题的方案包括:寻找永久资本(这对家族办公室而言是一个优势)、使用封闭式基金、关闭潜力有限的基金,以及营销那些目前不受欢迎但有良好前景的基金。
Find the right clients. The dream scenario is a client who understands what you do and is willing to give you money when you see opportunity and withdraw money only when prospects are less attractive. Great opportunities in the market tend to follow poor results, and poor opportunities follow great results. Since most clients suffer from recency bias, they behave opposite to the dream scenario. This behavior has an influence on results, as we have seen. Solutions to the client challenge include finding permanent capital (an advantage for family offices), using closed-end funds, closing funds with limited potential, and marketing funds that are unpopular currently but that have good prospects.
Companies
Companies
平衡短期与长期。长期是短期之和,高管必须两者兼顾。管理顾问兼作家彼得·德鲁克写道,管理者的主要任务是“在每一个决策和行动中,协调当前与长远未来的要求。管理者不能牺牲任何一端,否则就会危及企业。”73 过分强调短期,会无法为未来夯实基础;但过分聚焦长期,又会让问题或低效滋生蔓延。
Balance the short and long term. The long term is an aggregation of short terms, and executives have to deal with both. Peter Drucker, the management consultant and author, wrote that the main task of managers is “to harmonize in every decision and action the requirements of the immediate and long-range future. Managers cannot sacrifice either without endangering the enterprise.”73 Too much emphasis on the short term leads to a failure to lay the groundwork for the future. But too much focus on the long term means that problems or inefficiencies can fester.
高度重视沟通。如果你想吸引短期投资者,就要给他们大量交易的理由——这些理由往往来自公司的对外沟通。要明确根据你想吸引的投资者类型来设计沟通方式:短线投资者喜欢新闻,准指数型投资者看重详实的历史数据和业绩追踪工具,而长期持股的股东则希望理解公司的战略与资本配置实践。特别是盈利指引,很容易引发有损原则的行为。
Be very mindful of communication. If you want to attract short-term oriented investors, give them lots of reasons to trade. Those reasons are often based on corporate communications. Explicitly tailor your communication to the type of investor you want to attract. Transient investors like news. Quasi-indexers like good historical data and the means to track results. Dedicated shareholders want to understand strategy and capital allocation practices. Earnings guidance, in particular, can lead to compromising behavior.
让激励措施与战略保持一致。理想情况下,一家公司应当明确阐述自己的核心目标——也就是公司试图实现什么——并将激励和控制机制与这一目标对齐。核心目标应当与构建每股长期价值相关,并且就管理层打算如何处理商业活动中不可避免的权衡取舍给出具体的说明。
Make incentives consistent with the strategy. Ideally, a company should articulate its governing objective, a statement of what a company is trying to achieve, and align its incentives and controls to serve that objective. A governing objective should relate to building long-term value per share and provide specificity about how management intends to cope with the trade-offs that inevitably arise in business.
尽管我们的研究显示,拥有长寿命资产的行业在公司治理方面优于短寿命资产的行业,但激励机制仍需兼顾短期与长期。管理层应保持足够灵活性,根据实际存在的投资机会来增减资本支出。
While our research shows that sectors with long asset lives have better governance than sectors with short asset lives, incentives need to balance the short and long term. Management should try to be flexible enough to increase or decrease investment spending based on the opportunities that exist.
Investors
Investors
理解均值回归。均值回归是指,大幅偏离平均的结果之后,后续结果的期望值将更接近平均值。过去的高回报会吸引投资者,而差回报则让他们避而远之,这意味着他们往往在顶部投入资金,在底部撤出资金。解决之道在于,对某一资产类别的长期预期回报进行审慎评估,并制定与这些预期相符的资产配置政策。
Understand reversion toward the mean. Reversion toward the mean says that outcomes that are far from average will be followed by outcomes with an expected value closer to the average. High past returns attract investors and poor returns turn them off, which means that they often put money in at the top and remove it at the bottom. The antidote is a thoughtful assessment of long-term expected returns from an asset class and a policy of asset allocation that is consistent with those expectations.
认识到无所作为的价值。在生活中,我们通常被教育说,勤奋努力会有回报。在投资中,忙碌并不总能带来更好的结果,更多时候反而会带来更糟糕的结果。忙碌有三个陷阱。第一,你评估投资组合越频繁,就越容易遭受损失厌恶的困扰。第二,密切的监控会让你对近期偏差格外敏感,因为你清楚地看到哪些表现好、哪些表现差。最后,忙碌会产生成本,从而损害投资组合的回报。如我们所见,最佳的评估时间跨度比行业标准要长。
Recognize the value of inactivity. In life, we are generally taught that hard work and effort pay off. In investing, activity does not always lead to better outcomes and more often than not it leads to worse outcomes. There are three pitfalls to activity. First, the more frequently you assess your portfolio the more likely you are to suffer from loss aversion. Second, close monitoring makes you susceptible to recency bias because you see clearly what’s done well and what’s done poorly. Finally, activity creates costs that detract from portfolio returns. As we saw, the best time horizon for evaluation is longer than what is standard in the industry.
你的行为会影响你的收益。投资经理是受雇的代理人,本应把投资者的利益放在首位。但事实上,投资者的行为会帮助塑造投资经理所取得的业绩。我们之前看到,正向资金流入可能占对冲基金行业超额收益的三分之一,而且我们知道资金外流会导致被迫卖出。因此,如果你是一位与投资经理打交道的大额投资者,理解你对业绩的影响就很重要。
Your behaviors influence your returns. An investment manager is a hired agent who is supposed to make the interests of the investor paramount. But the fact is that the behavior of investors helps shape the results that investment managers generate. We saw earlier that positive fund flows might account for one-third of the excess returns in the hedge fund industry, and we know that outflows cause unwanted selling. So if you are a large investor who deals with investment managers, it is important to understand your influence on results.
尾注 1 参见《克服短期主义:呼吁对投资和商业管理采取更负责任的方式》,阿斯彭研究所商业与社会项目,2009 年 9 月 9 日;约翰·凯,《凯氏英国股票市场与长期决策评估》,2012 年 7 月;CFA 金融市场诚信中心与商业圆桌会议公司伦理研究所,《打破短期循环:关于企业领袖、资产管理者、投资者和分析师如何重新聚焦长期价值的讨论与建议》,短期主义研讨会系列,CFA 协会,2006 年;阿尔弗雷德·拉帕波特,《将资本主义从短期主义中拯救出来:如何构建长期价值并夺回我们的金融未来》(纽约:麦格劳-希尔,2011 年);阿尔弗雷德·拉帕波特,《短期绩效迷恋的经济学》。
Endnotes 1 See “Overcoming Short-Termism: A Call for a More Responsible Approach to Investment and Business Management,” The Aspen Institute Business and Society Program, September 9, 2009; John Kay, “The Kay Review of UK Equity Markets and Long-Term Decision Making,” July 2012; CFA Centre for Financial Market Integrity and Business Roundtable Institute for Corporate Ethics, “Breaking the Short-Term Cycle: Discussion and Recommendations on How Corporate Leaders, Asset Managers, Investors, and Analysts Can Refocus on Long-Term Value,” Symposium Series on Short-Termism, CFA Institute, 2006; Alfred Rappaport, Saving Capitalism from Short-Termism: How to Build Long-Term Value and Take Back Our Financial Future (New York: McGraw Hill, 2011); Alfred Rappaport, “The Economics of Short-Term Performance Obsession,”
《金融分析师期刊》第 61 卷第 3 期,2005 年 5 月/6 月,第 65-77 页;马泰奥·托内洛,“再论股票市场短视主义”,世界大型企业联合会报告 R-1386-06-RR,2006 年 4 月。
Financial Analysts Journal, Vol. 61, No. 3, May/June 2005, 65-77; Matteo Tonello, “Revisiting Stock Market Short-Termism,” The Conference Board Report R-1386-06-RR, April 2006.
2 欲了解更平衡的视角,可参见罗伯特·C·波曾(Robert C. Pozen)《遏制美国企业的短视主义:聚焦高管薪酬》,布鲁金斯治理研究,2014 年 5 月。反对短视主义的论述,可参见巴鲁克·列夫(Baruch Lev)《赢得投资者的支持:关于诚实、盈利指引及其他提振股价方式的惊人真相》(波士顿:哈佛商业评论出版社,2012 年),第 217-237 页。3 多米尼克·巴顿(Dominic Barton)与马克·怀斯曼(Mark Wiseman)《聚焦长期》,《哈佛商业评论》,2014 年 1 月。4 迈克尔·E·波特(Michael E. Porter)《资本选择:改变美国对产业的投资方式》,呈交竞争力委员会的研究报告,1992 年 6 月。
2 For a more balanced account see Robert C. Pozen, “Curbing Short-Termism in Corporate America: Focus on Executive Compensation,” Governance Studies at Brookings, May 2014. For an argument against short-termism, see Baruch Lev, Winning Investors Over: Surprising Truths about Honesty, Earnings Guidance, and Other Ways to Boost Your Stock Price (Boston, MA: Harvard Business Review Press, 2012), 217-237. 3 Dominic Barton and Mark Wiseman, “Focusing on the Long Run,” Harvard Business Review, January 2014. 4 Michael E. Porter, “Capital Choices: Changing the Way America Invests in Industry,” Research Report Presented to The Council of Competitiveness, June 1992.
5 1967 年 5 月 16 日,美联储理事会主席小威廉·麦克·马丁在纽约证券交易所 175 周年纪念午餐会上的评论。见 http://fraser.stlouisfed.org/docs/historical/martin/martin67_0516.pdf。
5 Comments of Wm. McC. Martin, Jr., Chairman, Board of Governors of the Federal Reserve System, Luncheon Session Symposium Observance of the 175th Anniversary of the New York Stock Exchange, May 16, 1967. See http://fraser.stlouisfed.org/docs/historical/martin/martin67_0516.pdf.
6 John Maynard Keynes, 《就业、利息和货币通论》(伦敦:麦克米伦出版社,1936 年)。7 Steven Pinker, 《风格感觉:21 世纪思考者写作指南》(纽约:维京成人图书,2014 年),第 4-5 页。
6 John Maynard Keynes, The General Theory of Employment, Interest and Money (London: Macmillan, 1936). 7 Steven Pinker, Sense of Style: The Thinking Person’s Guide to Writing in the 21st Century (New York: Viking Adult, 2014), 4-5.
8 P.W. 安德森,《多即是不同》,《科学》杂志,第 177 卷,第 4047 期,1972 年 8 月 4 日,第 393-396 页。
8 P.W. Anderson, “More Is Different,” Science, Vol. 177, No. 4047, August 4, 1972, 393-396.
当然,蚁群由蚂蚁组成,因此整体必然是各个部分的总和。但仅通过加总个体来预测蚁群行为的困难,正是微观-宏观问题的核心所在。
9 Of course, ant colonies are made up of ants, so the whole must be the sum of the parts. But the difficulty in predicting the behavior of the colony simply by aggregating the individuals is at the heart of the micro-macro problem.
10 Barton and Wiseman。另见 Tim Hodgson,“我们的行业有问题:投资行业是由中介机构为中继机构建立的,”韬睿惠悦前瞻小组 2.0,2014 年 6 月。
10 Barton and Wiseman. Also, see Tim Hodgson, “Our Industry Has a Problem: The Investment Industry Has Been Built by the Intermediaries for the Intermediaries,” Towers Watson Thinking Ahead Group 2.0, June 2014.
11 参见 Jeffery Abarbanell 和 Victor Bernard 合著的文章《美国股市是否短视?》,载于《会计研究期刊》第 38 卷第 2 期,2000 年秋季号,第 221–242 页。另参见 Alfred Rappaport 与 Michael J. Mauboussin 合著的《预期投资:从股价中读出更高回报》(波士顿,马萨诸塞州:哈佛商学院出版社,2001 年)。此外,还可参见 Lev(2012),第 228 页。
11 See Jeffery Abarbanell and Victor Bernard, “Is the U.S. Stock Market Myopic?” Journal of Accounting Research, Vol. 38, No. 2, Autumn 2000, 221-242. Also Alfred Rappaport and Michael J. Mauboussin, Expectations Investing: Reading Stock Prices for Better Returns (Boston, MA: Harvard Business School Press, 2001). Also, Lev (2012), 228.
12 安德鲁·G·哈德恩,“短暂的长线”,第 29 届欧洲金融研究大学协会研讨会:货币与金融的新范式?2011 年 5 月。参见表 6。
12 Andrew G. Haldane, “The Short Long,” 29th Sociéte Universitaire Européene de Recherches Financiéres Colloquium: New Paradigms in Money and Finance?, May 2011. See Table 6.
13 Robert R. Wiggins 和 Timothy W. Ruefli 合著的《熊彼特的幽灵:超级竞争是否让好时光变短了?》(“Schumpeter’s Ghost: Is Hypercompetition Making the Best of Times Shorter?”),发表于《战略管理期刊》(Strategic Management Journal)第 26 卷第 10 期,2005 年 10 月,第 887-911 页。另见 Robert R.
13 Robert R. Wiggins and Timothy W. Ruefli, “Schumpeter’s Ghost: Is Hypercompetition Making the Best of Times Shorter?” Strategic Management Journal, Vol. 26, No. 10, October 2005, 887-911. Also, Robert R.
威金斯与蒂莫西·W·鲁弗利,“持续竞争优势:时间动态与卓越经济绩效的发生率及持久性”,《组织科学》,第 13 卷第 1 期,2002 年 1-2 月,第 82-105 页。
Wiggins and Timothy W. Ruefli, “Sustained Competitive Advantage: Temporal Dynamics and the Incidence and Persistence of Superior Economic Performance,” Organizational Science, Vol. 13, No. 1, January-February 2002, 82-105.
14 市场资本化分析中包括了金融服务业,尽管该行业并无有效的资产存续期限。
14 The analysis of market capitalization includes the financial services industry even though there is no effective asset life.
股票价格上涨导致的薪酬增长,可能有多种原因。其一,税法(《国内收入法》第 162[m] 条)发生了变化,对特定高管的税收抵扣设置了 100 万美元的上限,但按业绩发放的薪酬属于例外。其二,直到 2004 年,公司才被要求将员工股票期权授予确认为费用,这制造了一种表面上的增长假象。
15 There are likely multiple reasons for the increase in pay based on the stock price. The first was a change in the tax code (Section 162(m) of the Internal Revenue Code) that limits tax deductions for certain executives to $1 million but provides an exception for pay based on performance. Second, companies were not required to treat employee stock option grants as an expense until 2004. This created a superficial picture of greater
即便如此,市场仍认识到了其经济后果。第三,20 世纪 80 年代和 90 年代,股市表现高于平均水平,这给那些选择股权薪酬的高管带来了巨大收益。最后,从 20 世纪 80 年代公司控制权市场蓬勃兴起开始,董事会逐渐意识到,一家公司的股价反映了市场对其财务表现的预期。
profits even though the market recognized the economic consequences. Third, the stock market had above-average results in the 1980s and 1990s, which conferred substantial benefit to those executives who took equity-based pay. Finally, starting with a robust market for corporate control in the 1980s, boards came to recognize that a company’s stock price reflects expectations for financial performance.
16 Brian J. Hall and Jeffrey B. Liebman, “Are CEOs Really Paid Like Bureaucrats?” Quarterly Journal of Economics, Vol. 113, No. 3, August 1998, 653-691. Also, Martin J. Conyon, “Executive Compensation and Board Governance in US Firms,” Economic Journal, Vol. 124, No. 574, February 2014, F60-F89.
16 Brian J. Hall and Jeffrey B. Liebman, “Are CEOs Really Paid Like Bureaucrats?” Quarterly Journal of Economics, Vol. 113, No. 3, August 1998, 653-691. Also, Martin J. Conyon, “Executive Compensation and Board Governance in US Firms,” Economic Journal, Vol. 124, No. 574, February 2014, F60-F89.
17 David I. Walker,“提升高管薪酬长期导向的挑战”,《波士顿学院法律评论》,第 51 卷,第 2 期,2010 年。
17 David I. Walker, “The Challenge of Improving the Long-Term Focus of Executive Pay,” Boston College Law Review, Vol. 51, No. 2, 2010.
18 Ken Favaro、Per-Ola Karlsson 与 Gary L. Neilson 合著,《CEO 的生命与时代》,《战略与经营》杂志,总第 75 期,2014 年夏季刊。
18 Ken Favaro, Per-Ola Karlsson, and Gary L. Neilson, “The Lives and Times of the CEO,” strategy+business, Vol. 75, Summer 2014.
19 Xavier Gabaix、Augustin Landier 和 Julien Sauvagnat,《CEO 薪酬与企业规模:危机后的更新》,《经济期刊》,第 124 卷,第 574 期,2104 年 2 月,F40-F59。
19 Xavier Gabaix, Augustin Landier, and Julien Sauvagnat, “CEO Pay and Firm Size: An Update After the Crisis,” Economic Journal, Vol. 124, No. 574, February 2104, F40-F59.
20 请参阅法里恩特顾问有限责任公司(Farient Advisors LLC)2013 年 2 月发布的《业绩指标及其与价值的关联》,以及格雷格·D 所著的相关内容。
20 See “Performance Metrics and Their Link to Value,” Farient Advisors LLC, February 2013 and Gregg D.
Polsky 和 Andrew C.W. Lund 在《高管薪酬改革能治愈管理层短视症吗?》一文中提出。
Polsky and Andrew C.W. Lund, “Can Executive Compensation Reform Cure Management Short-Termism?”
在《治理研究》系列议题中,布鲁金斯学会,第 59 卷,2013 年 3 月。
Issues in Governance Studies, Brookings Institution, Vol. 59, March 2013.
21 Walker.
21 Walker.
22 Daniel Bergstresser 和 Thomas Philippon,《CEO 激励与盈余管理》,《金融经济学杂志》,第 80 卷,第 3 期,2006 年 6 月,第 511–529 页。
22 Daniel Bergstresser and Thomas Philippon, “CEO Incentives and Earnings Management,” Journal of Financial Economics, Vol. 80, No. 3, June 2006, 511-529.
23 John Asker、Joan Farre-Mensa 和 Alexander Ljungqvist,《企业投资与股票市场上市:一个谜题?》,《金融研究评论》(即将发表),当前版本,2014 年 10 月 4 日。
23 John Asker, Joan Farre-Mensa, and Alexander Ljungqvist, “Corporate Investment and Stock Market Listing: A Puzzle?” Review of Financial Studies (forthcoming), current version, October 4, 2014.
John R. Graham、Campbell R. Harvey 和 Shiva Rajgopal 合著,《价值破坏与财务报告决策》,《金融分析师杂志》,第 62 卷,第 6 期,2006 年 11/12 月,第 27-39 页。
24 John R. Graham, Campbell R. Harvey, and Shiva Rajgopal, “Value Destruction and Financial Reporting Decisions,” Financial Analysts Journal, Vol. 62, No. 6, November/December 2006, 27-39.
25 Brian J. Bushee,“识别并吸引‘合适的’投资者:机构投资者行为证据”,《应用公司金融杂志》,第 16 卷,第 4 期,2004 年秋季,第 28-35 页。另见 Brian J. Bushee,“机构投资者对短视研发投资行为的影响”,《会计评论》,第 73 卷,第 3 期,1998 年 7 月,第 305-333 页。
25 Brian J. Bushee, “Identifying and Attracting the ‘Right’ Investors: Evidence on the Behavior of Institutional Investors,” Journal of Applied Corporate Finance, Vol. 16, No. 4 Fall 2004, 28-35. Also Brian J. Bushee, “The Influence of Institutional Investors on Myopic R&D Investment Behavior,” Accounting Review, Vol. 73, No. 3, July 1998, 305-333.
26 参见 Bin Ke 和 Kathy Petroni 的论文《活跃交易的机构投资者信息有多灵通?来自连续盈利增长中断前其交易行为的证据》,《会计研究杂志》第 42 卷第 5 期,2004 年 12 月,第 895-927 页。关于盈利质量与机构持股之间关联的证据,可参阅 Laura Yue Liu 和 Emma Yan Peng 的论文《机构投资者与应计质量》,工作论文,2008 年 3 月。
26 Bin Ke and Kathy Petroni, “How Informed Are Actively Trading Institutional Investors? Evidence from Their Trading Behavior before a Break in a String of Consecutive Earnings Increases,” Journal of Accounting Research, Vol. 42, No. 5, December 2004, 895-927. For evidence of the link between earnings quality and institutional ownership, see Laura Yue Liu and Emma Yan Peng, “Institutional Investors and Accruals Quality,” Working Paper, March 2008.
27 Stephen Hall, Dan Lovallo, 和 Reinier Musters 在《如何让资金追随战略》一文中指出,
27 Stephen Hall, Dan Lovallo, and Reinier Musters, “How to Put Your Money Where Your Strategy Is,”
麦肯锡季刊,2012 年 3 月。
McKinsey Quarterly, March 2012.
28 Bushee, 2004.
28 Bushee, 2004.
29 汤姆·希尔曼,《将公司业绩和估值与管理激励挂钩》,瑞士信贷 HOLT,2014 年 7 月。
29 Tom Hillman, “Linking Corporate Performance and Valuation to Management Incentives,” Credit Suisse HOLT, July 2014.
30 沃伦·E·巴菲特,《致股东信》,伯克希尔·哈撒韦 1979 年年报。
30 Warren E. Buffett, “Letter to Shareholders,” Berkshire Hathaway Annual Report, 1979.
波特(1992)、霍奇森(2014)以及约翰·C·博格尔,《共同基金行业 60 年后:更好还是更糟?》,《金融分析师期刊》第 61 卷第 1 期,2005 年 1/2 月号,第 15-24 页。
31 Porter (1992), Hodgson (2014), and John C. Bogle, “The Mutual Fund Industry 60 Years Later: For Better or Worse?” Financial Analysts Journal, Vol. 61, No. 1. January/February 2005, 15-24.
32 杰里米·J·西格尔,《长期投资股票:金融市场回报与长期投资策略的权威指南》,第 5 版(纽约:麦格劳-希尔,2014 年),第 95-96 页。
32 Jeremy J. Siegel, Stock for the Long Run: The Definitive Guide to Financial Market Returns and Long-Term Investment Strategies, 5th Edition (New York: McGraw Hill, 2014), 95-96.
33 Marshall E. Blume 和 Donald B. Keim,《机构投资者与股市流动性:趋势与关系》,宾夕法尼亚大学沃顿商学院工作论文,2012 年 8 月。34 Charles M. Jones,《股市流动性与交易成本的一个世纪》,工作论文,2002 年 5 月 22 日。35 Eric D. Beinhocker,《财富的起源:演化、复杂性与经济学的激进重构》(马萨诸塞州波士顿:哈佛商学院出版社,2006 年),第 399–404 页。
33 Marshall E. Blume and Donald B. Keim, “Institutional Investors and Stock Market Liquidity: Trends and Relationships,” The Wharton School at the University of Pennsylvania Working Paper, August 2012. 34 Charles M. Jones, “A Century of Stock Market Liquidity and Trading Costs,” Working Paper, May 22, 2002. 35 Eric D. Beinhocker, The Origin of Wealth: Evolution, Complexity, and the Radical Remaking of Economics (Boston, MA: Harvard Business School Press, 2006), 399-404.
在与一些投资者的交流中,《华尔街日报》记者杰森·茨威格曾就这一著名说法写道:“我给沃伦·巴菲特打了电话,问了他本人。这位熟知格雷厄姆的
36 In an exchange with some investors, Jason Zweig, a journalist with the Wall Street Journal, wrote the following about this famous phrase: “I called Warren Buffett and asked him. He, who knows Graham’s
在世写作无出其右的人,当我领着他逐字读过你引用的那两个段落时也感到惊讶。他像我们许多人一样,原以为这些话是格雷厄姆写下的。想了一会儿,他意识到自己很可能从来就没有读过这句格言,只是在课堂和办公室里听过格雷厄姆多次说起。即使格雷厄姆从未以经典形式写下来,他也对身边人反复说过这个观点。
writings better than anyone else alive, was surprised when I walked him through the same two passages you cited. He had presumed, like many of us, that Graham had written these words. After a few minutes of thinking it through aloud, he realized that he might never have read the maxim after all, but rather that he had heard Graham say these words many times in class and around the office. Even if Graham never wrote them down in canonical form, he stated this view many times to those who were closest to him.
在它最常被引用的形式中,我认为“短期是投票机,长期是称重机”这句格言出自巴菲特,而非格雷厄姆。在伯克希尔·哈撒韦某年的年报中(1987 年?老实说我不记得是哪一份了),巴菲特用引号把这句箴言归到了格雷厄姆名下。我认为,这是人们能找到的最接近其原始形态的版本。唯一的另一种可能是,格雷厄姆的某位学生在 1930 年代初格雷厄姆价值投资课的留存讲义中记下了这句话。我没有通读所有讲义去找这句话。但我觉得可能性不大。我认为沃伦·巴菲特在这件事上是无可指摘的权威来源,而且在我看来,这件事已经了结了:格雷厄姆说过这句话,即使他从未写下过它。
In its most commonly cited form, I think the short-run-voting-machine-long-run-weighing-machine apothegm comes from Buffett, not Graham. In one of the Berkshire Hathaway annual reports (1987? I don’t remember which one, to be honest), Buffett attributes the maxim to Graham, in quotation marks. That’s the closest to their original form that I believe anyone will find them in. The only other possibility is that one of Graham’s students captured these words in some of the lecture notes that are preserved from Graham’s value-investing classes from the early 1930s. I haven’t read through them all to see if this saying can be found there. But I don’t think it’s likely. I regard Warren Buffett as an unimpeachable source in this case and, in my opinion, the case is closed: Graham said it, even if he never wrote it.”
参见 http://www.bogleheads.org/forum/viewtopic.php?t=77840。
See http://www.bogleheads.org/forum/viewtopic.php?t=77840.
37. P. Alexander Quimby,《通过忠诚股解决企业短视主义》,载于《佛罗里达州立大学法律评论》,第 40 卷,第 2 期,2013 年冬季刊,第 389-413 页。
37 P. Alexander Quimby, “Addressing Corporate Short-Termism Through Loyalty Shares,” Florida State University Law Review, Vol. 40, No. 2, Winter 2013, 389-413.
38 一项调查显示,公司高管认为“长期”投资者的投资期限为 2.8 年或更长。参见 Anne Beyer、David F. Larcker 和 Brian Tayan,“2014 Study on How Investment Horizon and Expectations of Shareholder Base Impact Corporate Decision-Making”,斯坦福大学洛克公司治理研究中心和 NIRI,2014 年。
38 In a survey, company executives suggest that “long-term” investors have an investment horizon of 2.8 years or longer. See Anne Beyer, David F. Larcker, and Brian Tayan, “2014 Study on How Investment Horizon and Expectations of Shareholder Base Impact Corporate Decision-Making,” Rock Center for Corporate Governance at Stanford University and NIRI, 2014.
39 蒂姆·科勒、马克·格德哈特与戴维·韦塞尔斯,《估值:衡量与管理公司价值》第 4 版(新泽西州霍博肯:约翰·威利父子出版社,2005 年),第 69-98 页。
39 Tim Koller, Marc Goedhart, and David Wessels, Valuation: Measuring and Managing the Value of Companies, 4th Edition (Hoboken, NJ: John Wiley & Sons, 2005), 69-98.
40 Michael Dell,“一年之后:我对领导私有公司学到了什么”,领英帖子,2014 年 10 月 29 日。
40 Michael Dell, “One year later, what I’ve learned about leading a private company,” LinkedIn Post, October 29, 2014.
汤姆·科普兰、亚伦·多尔戈夫和阿尔贝托·莫埃尔,《预期在解释股票回报截面差异中的作用》,《会计研究杂志》,第 9 卷,第 2-3 期,2004 年 6 月,第 149-188 页。
41 Tom Copeland, Aaron Dolgoff, and Alberto Moel, “The Role of Expectations in Explaining the Cross-Section of Stock Returns,” Journal of Accounting Research, Vol. 9, No. 2-3, June 2004, 149-188.
42 “问答:为合并辩护”,《商业周刊》,2001 年 9 月 16 日。见 http://www.businessweek.com/stories/2001-09-16/q-and-a-making-the-case-for-combining。
42 “Q&A: Making the Case for Combining,” BusinessWeek, September 16, 2001. See http://www.businessweek.com/stories/2001-09-16/q-and-a-making-the-case-for-combining.
43 Mark L. Sirower 和 Sumit Sahni,《避开“协同陷阱”:为 CEO 与董事会提供的并购决策实用指南》,《应用公司金融杂志》,第 18 卷,第 3 期,2006 年夏季,第 83-95 页。
43 Mark L. Sirower and Sumit Sahni, “Avoiding the ‘Synergy Trap’: Practical Guidance on M&A Decisions for CEOs and Boards,” Journal of Applied Corporate Finance, Vol. 18, No. 3, Summer 2006, 83-95.
44 参见格雷格·贾雷尔(Gregg Jarrell)在《公司并购与股东价值:罗切斯特大学圆桌论坛》中的评论,《应用公司金融杂志》,第 17 卷,第 4 期,2005 年秋季刊,第 69-70 页。
44 See comments from Gregg Jarrell in, “University of Rochester Roundtable on Corporate M&A and Shareholder Value,” Journal of Applied Corporate Finance, Vol. 17, No. 4, Fall 2005, 69-70.
45 杰弗里·P·贝佐斯,“致股东信”,亚马逊公司 1997 年年报。
45 Jeffrey P. Bezos, “Letter to Shareholders,” Amazon.com Annual Report, 1997.
46 Matthew Yglesias,“无利可图的先知”,Slate.com,2014 年 1 月 30 日。
46 Matthew Yglesias, “The Prophet of No Profit,” Slate.com, January 30, 2014.
47 Justin Fox,“亚马逊如何训练其投资者的行为”,《哈佛商业评论》博客,2013 年 1 月 30 日。
47 Justin Fox, “How Amazon Trained Its Investors to Behave,” HBR Blog, January 30, 2013.
48 阿斯沃斯·达摩达兰,“如果你建好了(收入),它们(利润)就会来:亚马逊的梦想之地”,博客文章,2014 年 10 月 29 日。
48 Aswath Damodaran, “If you build it (revenues), they (profits) will come: Amazon’s Field of Dreams,” Blog Entry, October 29, 2014.
49 Daniel McGinn, “杰夫·贝佐斯脑中的数字,”《哈佛商业评论》, 2014 年 11 月, 第 58-61 页。 50 Charles D. Ellis, “商业成功会毁掉投资管理行业吗?”《投资组合管理期刊》, 第 27 卷, 第 3 期, 2001 年春季刊, 第 11-15 页。
49 Daniel McGinn, “The Numbers in Jeff Bezos’s Head,” Harvard Business Review, November 2014, 58-61. 50 Charles D. Ellis, “Will Business Success Spoil the Investment Management Profession?” Journal of Portfolio Management, Vol. 27, No. 3, Spring 2001, 11-15.
51 伊利亚·D·迪切夫,“投资者的实际历史回报是多少?来自资金加权回报的证据,”
51 Ilia D. Dichev, “What Are Investors’ Actual Historical Returns? Evidence from Dollar-Weighted Returns,”
《美国经济评论》第 97 卷第 1 期,2007 年 3 月,第 386-401 页;以及伊利亚·D·迪切夫和格温·余合著的《高风险,低回报:对冲基金投资者实际赚到了什么》,载于《金融经济学杂志》第 100 卷第 2 期,2011 年 5 月,第 248-263 页。
American Economic Review, Vol. 97, No. 1, March 2007, 386-401, and Ilia D. Dichev and Gwen Yu, “High Risk, Lower Returns: What Hedge Fund Investors Really Earn,” Journal of Financial Economics, Vol. 100, No. 2, May 2011, 248-263.
52 Katja Ahoniemi 和 Petri Jylhä,“流量、价格压力与对冲基金回报”,《金融分析师杂志》,第 70 卷,第 5 期,2014 年 9 月/10 月,第 73-93 页。另参见 Diane Del Guercio 和 Paula A. Tkac,“管理投资组合资金流量的决定因素:共同基金与养老基金”,《金融与定量分析杂志》,第 37 卷,第 4 期,2002 年 12 月,第 523-55 页。
52 Katja Ahoniemi and Petri Jylhä, “Flows, Price Pressure, and Hedge Fund Returns,” Financial Analysts Journal, Vol. 70, No. 5, September/October 2014, 73-93. See also Diane Del Guercio and Paula A. Tkac, “The Determinants of the Flow of Funds of Managed Portfolios: Mutual Funds versus Pension Funds,” Journal of Financial and Quantitative Analysis, Vol. 37, No. 4, December 2002, 523-55.
53 Jeremy C. Stein,“为什么大多数基金是开放式的?竞争与套利的边界,”《经济学季刊》,第 120 卷,第 1 期,2005 年 2 月,第 247-272 页。
53 Jeremy C. Stein, “Why Are Most Funds Open-End? Competition and the Limits of Arbitrage,” Quarterly Journal of Economics, Vol. 120, No. 1, February 2005, 247-272.
乔纳森·B·伯克(Jonathan B. Berk)与理查德·C·格林(Richard C. Green)合著论文《理性市场中的共同基金资金流动与业绩表现》。
54 Jonathan B. Berk and Richard C. Green, “Mutual Fund Flows and Performance in Rational Markets,”
《政治经济学杂志》,第 112 卷,第 6 期,2004 年 12 月,第 1269-1295 页。
Journal of Political Economy, Vol. 112, No. 6, December 2004, 1269-1295.
55 李晋,“投资者短期主义如何影响共同基金经理的短期主义?”2005 年欧洲金融协会莫斯科会议论文,2005 年 2 月 27 日。
55 Li Jin, “How Does Investor Short-termism Affect Mutual Fund Manager Short-termism?” EFA 2005 Moscow Meetings Paper, February 27, 2005.
56 约翰·C·博格尔,“全面投资费用算术”,《金融分析师杂志》,第 70 卷,第 1 期,2014 年 1/2 月,第 13-21 页。另见布莱恩·R·威默(CFA)、丹尼尔·W·沃利克与戴维·C·帕库拉,“量化追涨杀跌的影响”,先锋集团研究笔记,2014 年 7 月。
56 John C. Bogle, “The Arithmetic of ‘All-In’ Investment Expenses,” Financial Analysts Journal, Vol. 70, No. 1, January/February 2014, 13-21. See also Brian R. Wimmer, CFA, Daniel W. Wallick, and David C. Pakula, “Quantifying the Impact of Chasing Performance,” Vanguard Research Note, July 2014.
57 Scott D. Stewart,CFA,John J. Neumann,Christopher R. Knittel,和 Jeffrey Heisler,CFA,“价值缺席:机构计划发起人投资配置决策分析”,《金融分析师期刊》,第 65 卷,第 6 期,2009 年 11/12 月,第 34-51 页。
57 Scott D. Stewart, CFA, John J. Neumann, Christopher R. Knittel, and Jeffrey Heisler, CFA, “Absence of Value: An Analysis of Investment Allocation Decisions by Institutional Plan Sponsors,” Financial Analysts Journal, Vol. 65, No. 6, November/December 2009, 34-51.
58 理查德·C·格里诺尔德与罗纳德·N·卡恩,《主动投资组合管理:获取超额收益与控制风险的量化方法》,第二版(纽约:麦格劳-希尔,2000 年),第 480 页。 59 大卫·L·多诺霍、罗伯特·A·克雷尼安与马修·H·斯坎伦,“耐心是美德吗?——评估收益时着眼长期的不带感情色彩的论证”,《投资组合管理期刊》,第 37 卷,第 1 期,2010 年秋季,第 105-120 页。
58 Richard C. Grinold and Ronald N. Kahn, Active Portfolio Management: A Quantitative Approach for Producing Superior Returns and Controlling Risk, Second Edition (New York: McGraw-Hill, 2000), 480. 59 David L. Donoho, Robert A. Crenian, and Matthew H. Scanlan, “Is Patience a Virtue? The Unsentimental Case for the Long View in Evaluating Returns,” Journal of Portfolio Management, Vol. 37, No. 1, Fall 2010, 105-120.
60 “Stress in America: Our Health at Risk,” American Psychological Association, January 11, 2012. 61 Robert M. Sapolsky, Why Zebras Don’t Get Ulcers, Third Edition (New York: Henry Holt and Company, 2004), 13.
60 “Stress in America: Our Health at Risk,” American Psychological Association, January 11, 2012. 61 Robert M. Sapolsky, Why Zebras Don’t Get Ulcers, Third Edition (New York: Henry Holt and Company, 2004), 13.
62 Shlomo Benartzi 与 Richard H. Thaler,“短视损失厌恶与股权溢价之谜”,《经济学季刊》,第 110 卷,第 1 期,1995 年 2 月,第 73-92 页。
62 Shlomo Benartzi and Richard H. Thaler, “Myopic Loss Aversion and the Equity Premium Puzzle,” Quarterly Journal of Economics, Vol. 110, No. 1, February 1995, 73-92.
63 纳拉亚南·坎达萨米、本·哈迪、莱昂内尔·佩奇、马库斯·沙夫纳、约翰·格拉加伯、安德鲁·S.
63 Narayanan Kandasamy, Ben Hardy, Lionel Page, Markus Schaffner, Johann Graggaber, Andrew S.
Powlson、Paul C. Fletcher、Mark Gurnell 和 John Coates 合著的文章《皮质醇改变金融风险偏好》,
Powlson, Paul C. Fletcher, Mark Gurnell, and John Coates, “Cortisol Shifts Financial Risk Preferences,”
《美国国家科学院院刊》,第 111 卷,第 9 期,2014 年 3 月 4 日,第 3608-3613 页。
Proceedings of the National Academy of Sciences, Vol. 111, No. 9, March 4, 2014, 3608-3613.
64 Uri Gneezy、Arie Kapteyn、Jan Potters,《市场实验中的评估周期与资产价格》,《金融学刊》,第 58 卷,第 2 期,2003 年 4 月,第 821–837 页。
64 Uri Gneezy, Arie Kapteyn, and Jan Potters, “Evaluation Periods and Asset Prices in a Market Experiment,” Journal of Finance, Vol. 58, No. 2, April 2003, 821-837.
65 约瑟夫·拉科尼肖克、安德烈·施莱弗和罗伯特·维什尼,《逆向投资、外推与风险》,《金融学刊》,第 49 卷,第 5 期,1994 年 12 月,第 1541-1578 页。
65 Josef Lakonishok, Andrei Shleifer, and Robert Vishny, “Contrarian Investment, Extrapolation, and Risk,” Journal of Finance, Vol. 49, No. 5, December 1994, 1541-1578.
66 Richard Thaler,“动态不一致性的若干经验证据”,《经济学快报》,第 8 卷,第 3 期,1981 年,第 201-207 页。等待的倾向似乎也具有文化维度。参见 Mei Wang、Marc Oliver Rieger 和 Thorsten Hens,“时间偏好的差异:来自 45 个国家的证据”,挪威经济学院讨论稿,2011 年 10 月。
66 Richard Thaler, “Some Empirical Evidence on Dynamic Inconsistency,” Economic Letters, Vol. 8, No. 3, 1981, 201-207. The proclivity to wait also appears to have a cultural dimension. See Mei Wang, Marc Oliver Rieger, and Thorsten Hens, “How Time Preferences Differ: Evidence from 45 Countries,” NHH Discussion Paper, October 2011.
67 Ernst Fehr,“急躁的经济学”,《自然》杂志,第 415 卷,2002 年 1 月 17 日,第 269-272 页。
67 Ernst Fehr, “The Economics of Impatience,” Nature, Vol. 415, January 17, 2002, 269-272.
68 Samuel M. McClure、David I. Laibson、George Loewenstein 和 Jonathan D. Cohen,《分离的神经系统对即时与延迟货币奖励的估价》,载于《科学》杂志,第 306 卷,2004 年 10 月 15 日。
68 Samuel M. McClure, David I. Laibson, George Loewenstein, and Jonathan D. Cohen, “Separate Neural Systems Value Immediate and Delayed Monetary Rewards,” Science, Vol. 306, October 15, 2004.
69 理查德·H·塞勒和卡斯·R·桑斯坦,《助推:关于健康、财富与幸福的决策优化》(纽约:Caravan 出版社,2008 年)。
69 Richard H. Thaler and Cass R. Sunstein, Nudge: Improving Decisions About Health, Wealth, and Happiness (New York: Caravan, 2008).
70 John T. Warner 与 Saul Pleeter,“个人折现率:来自军队裁减计划的证据”,《美国经济评论》,第 91 卷,第 1 期,2001 年 3 月,第 33-53 页。
70 John T. Warner and Saul Pleeter, “The Personal Discount Rate: Evidence from Military Downsizing Programs,” American Economic Review, Vol. 91, No. 1, March 2001, 33-53.
71 罗伯特·E·鲁宾,《在不确定的世界:从华尔街到华盛顿的艰难抉择》(纽约:Random House 出版社,2003 年),第 321-350 页。
71 Robert E. Rubin, In an Uncertain World: Tough Choices from Wall Street to Washington (New York: Random House, 2003), 321-350.
72 “投资视野:经理人的言行是否一致?”梅瑟与 IRRC 研究院,2010 年。73 彼得·F·德鲁克,《人与绩效:德鲁克论管理精华》(马萨诸塞州波士顿:哈佛商学院出版社,2007 年),第 56 页。
72 “Investment Horizons: Do Managers Do What They Say?” Mercer and IRRC Institute, 2010. 73 Peter F. Drucker, People and Performance: The Best of Peter Drucker on Management (Boston, MA: Harvard Business School Press, 2007), 56.