Motley Fool访谈
迈克尔·莫布森专访:一家公司不管有没有负债或负债很高,其投资资本回报率(ROIC)都是一样的。2016 年 10 月 18 日下午 4 点 47 分。这是很有用的一个特性。
Interview with Michael Mauboussin company has no debt or a lot of debt, its ROIC Oct 18, 2016 at 4:47PM is the same. That's a useful feature.
Motley Fool 分析师约翰·罗通蒂专访约翰·罗通蒂:在计算投资资本回报率(ROIC)或净资产收益率(ROE)时,你倾向于将商誉计入还是剔除?
Motley Fool analyst John Rotonti interviews John Rotonti: When you calculate ROIC or Michael Mauboussin about returns on invested return on equity (ROE), do you prefer to capital (ROIC), valuation, and behavioral keep goodwill in or take it out?
finance.
finance.
迈克尔·莫布森:在计算投入资本回报率(ROIC)时,有大量实际难题需要处理,包括对商誉的处理。简单的答案是,我喜欢两种方式都算一遍。对某些公司来说,差别巨大。例如,在 2016 财年,思科(纳斯达克:CSCO)剔除商誉的 ROIC 大约是包含商誉时的三倍。
更长的答案是,如果一家公司一直通过收购扩张,并且我预计它会继续保持这种模式,那么我倾向于保留商誉。如果该公司做了一笔巨额交易,背上了大量商誉,但并不活跃于并购领域,那么我倾向于剔除商誉。剔除商誉的基本逻辑在于,你能更好地把握业务的基本经济状况。
Michael Mauboussin: There are a host of John Rotonti: How do you define a high- practical issues that you need to deal with quality business? when you calculate ROIC, including the treatment of goodwill. The simple answer is Michael Mauboussin: A high-quality that I like to see it calculated both ways. For business is one that is profitable, typically as a some companies, the difference is huge. For result of high margins, has relatively low debt, example, in fiscal 2016, Cisco's (NASDAQ: a very capable management team, and a CSCO) ROIC excluding goodwill is roughly 3 business that is unlikely to change abruptly in times higher than it is including goodwill. the near term. So essentially it is a business with a high return on invested capital and The longer answer is if a company has been stable prospects. acquisitive and I would expect them to remain so, I would lean toward leaving in goodwill. If John Rotonti: How do you define a high- the company did a huge deal, is saddled with a quality management team? lot of goodwill, and is not active in M&A, I would lean toward removing it. The basic idea Michael Mauboussin: All roads in behind excluding it is that you get a better managerial evaluation lead to capital sense of the underlying economics of the allocation. A high-quality management team is business.
John Rotonti:我发现,在很多案例中,一家企业的高 ROIC(投入资本回报率)要么源于高税后净营业利润率(NOPAT),要么源于高投入资本周转率(销售额/投入资本)。如果一家企业的高 ROIC 同时由高 NOPAT 利润率和高资本效率驱动,这说明了什么?这些企业是否属于更高品质的?
John Rotonti:对于企业正在创造的回报,你有没有偏好的衡量指标?资产回报率?净资产收益率?
一位深知如何调配资源(包括资本和人才)并将其导向最优最高用途的人。高素质的高管应当具备道德操守、思想开明、深思熟虑、审慎冒险、公开透明且有长远眼光。
one that knows how to take resources, including capital and people, and put them to John Rotonti: I have found that in a lot of their best and highest use. Quality executives cases, a business's high ROIC is driven by are ethical, open-minded, thoughtful, judicious either high net operating profit after tax risk-takers, transparent, and long-term (NOPAT) margins or high invested capital oriented. turnover (sales/invested capital). What does it say about a business if its high ROIC is John Rotonti: Do you have a preferred driven by both high NOPAT margins and measure for the returns a business is high capital efficiency? Are these businesses generating? Return on assets? Return on of higher quality?
净资产收益率?还是投入资本回报率?
equity? Or return on invested capital?
迈克尔·莫布森:总的来说,迈克尔·莫布森:那些通过高利润率以及中等至低资本周转率来实现高 ROIC 的公司,往往与迈克尔·波特所说的“差异化”战略相关联。而通过低利润率和高周转率实现的高 ROIC,则与“成本领先”战略相符。很少有公司既能拥有高利润率又能实现高周转率,但你可以肯定地说,这些公司占据着令人羡慕的战略地位。
所有这些衡量指标都有其局限性,但就我个人而言,基于几个理由,投入资本回报率是我在这一类指标中最喜欢的一个。第一,当你使用 ROIC 时,它留给人为操纵的空间相对较小。ROIC 是指税后净营业利润(NOPAT)除以投入资本。NOPAT 是扣除融资成本之前的现金收益。你可以从资产负债表的左侧或右侧来计算投入资本,这都能为资产使用效率以及融资选择提供洞见。
第二,ROIC 是中性的融资指标。所有其他那些衡量指标都可能因资本结构的变化而被操纵。
Michael Mauboussin: Generally speaking, Michael Mauboussin: All of these measures companies that achieve a high ROIC through have limitations, but return on invested capital high margins and moderate to low capital is my favorite of that group for a couple of velocity are associated with what Michael reasons. First, there is a little less room for Porter calls a "differentiation" strategy. A high manipulation when you use ROIC, which is ROIC through low margins and high turnover net operating profit after tax, or NOPAT, is consistent with a "cost leadership" strategy. divided by invested capital. NOPAT is cash Very few companies have both high margins earnings before financing costs. You can and high turns, but you can certainly say they calculate invested capital from the left or right have an enviable strategic position. side of the balance sheet, which can provide insight into the efficiency of asset utilization My colleague at Columbia Business School, as well as financing choices. Bruce Greenwald, wrote a book called Competition Demystified in which he Second, ROIC is financing neutral. All of discusses three sources of competitive those other measures can be manipulated by advantage: consumer advantage (akin to changes in capital structure. So whether a differentiation), production advantage (cost
领导力)以及规模效应。那些高利润、高周转的企业,同时拥有全部三项优势。信息技术和医疗保健类公司更多依赖无形资产,利润率高于工业、能源和材料类公司,后者则使用更多有形资产。
约翰·罗托蒂:目前美国公司产生了大量超额自由现金流,因为投入资本回报率(ROIC)很高,但研发费用占销售额的比例也同步上升。
leadership), and economies of scale. The high- commensurate rise in research and margin, high-turn businesses have all three development as a percentage of sales. sources of advantage working for them. Information-technology and health-care companies, which rely more on intangible John Rotonti: U.S. companies are assets, have margins that are higher than those generating a lot of excess free cash flow of industrial, energy, and material companies right now because ROICs are high but that use more tangible assets.
资本再投资的回报率很低。你能解释一下什么是明智的资本配置吗?约翰·罗通蒂:在您看来,一家公司会把能赚到的每一分钱都用于内部的高回报投资,这是否意味着其竞争优势更强、更可持续?
reinvestment is low. Could you explain intelligent capital allocation? Should John Rotonti: In your opinion, is one source companies invest every penny they can of competitive advantage stronger and internally at high rates of return before more sustainable than another?
通过股息和回购向股东返还现金?迈克尔·莫布森:这是一个很难回答的问题。我见过的对这个问题的经验研究最接近的是迈克尔·雷纳和穆姆塔兹·阿赫迈德的工作,他们是德勤的顾问,在他们的书《三条规则》中进行了讨论。他们分析了自 1960 年代以来数千家公司,并提出,卓越的业绩——那些超出运气所能解释的结果——是公司遵循两条规则的结果。第一条规则是“更好而非更便宜”。换句话说,不要靠价格竞争。第二条规则是“收入先于成本”。成功的公司专注于增加销售额,而不是削减成本。书名暗示了第三条规则,令人恼火的是,那就是没有其他规则了。首先,你必须回答公司试图实现什么这一基本问题。假设其目标是建立长期每股价值,那么我会说资本配置完全在于寻找机会,找到那些具有最佳和最高使用价值的投资。我当然倾向于有机投资,比如资本支出。但有时,回购股票可能比资本支出更能创造每股价值。所有资本配置问题的正确答案都是“视情况而定”。具体来说,这取决于价格与价值之间的关系。
returning cash to shareholders through dividends and buybacks? Michael Mauboussin: This is a tough question to answer. The closest thing I've seen Michael Mauboussin: First you have to to an empirical study of this question is the answer the basic question of what the work by Michael Raynor and Mumtaz Ahmed, company is trying to achieve. Assuming that consultants at Deloitte, that was discussed in its goal is to build long-term value per share, I their book, The Three Rules. They analyzed would say that capital allocation is all about thousands of companies going back to the finding the opportunities with the best and 1960s and suggested that superior highest use. Certainly I would have a bias performance, results that are above and toward organic investments, such as capital beyond what luck allows, is the result of expenditures. But there may be instances when companies following two rules. The first rule repurchasing shares creates more value per is "better before cheaper." In other words, do share than a capital expenditure does. The not compete on price. The second rule is right answer to all capital allocation questions "revenue before cost." Successful companies is "it depends." Specifically, it depends on the focus on increasing sales rather than cutting relationship between price and value. costs. The title suggests a third rule, which, irritatingly, is that there are no other rules.
一个强有力的实证发现是:资产快速增长的公司往往股东总回报不佳,而资产增长缓慢甚至收缩的公司反而回报良好。这说明在快速扩张的同时创造大量价值是很困难的。此外,资产剥离、分拆和回购等行为也能增加价值。
约翰·罗通蒂:你最近指出,美国企业当前的现金流投资回报率(CFROI)为 9%,比长期均值 6% 高出 50%。是什么推动了如此高的回报?
约翰·罗通蒂:对于高净资产收益率(ROIC)的公司,你认为将企业价值 / 投入资本作为估值指标是否有用?我有时发现,那些高 ROIC 且相对于投入资本倍数较低(比如企业价值 / 投入资本小于 3 倍)的公司,用其他估值方法看也往往显得有吸引力。这些规则似乎更接近差异化战略,而非成本领先战略。
A strong empirical finding is that companies with rapid asset growth tend to have poor total Those rules seem closer to a differentiation shareholder returns and companies with slow, strategy than a cost leadership strategy. or even contracting, asset growth have good returns. This tells you that it's hard to grow John Rotonti: For companies with high rapidly and create a lot of value at the same ROIC, do you think it's useful to time. Also, actions such as divestitures, spin- incorporate enterprise value/invested offs, and buybacks can add value. capital as a valuation metric? I have sometimes found that companies that have John Rotonti: You recently pointed out that high ROIC and are trading at lower the current cash flow return on investment multiples of invested capital (let's say (CFROI) of U.S. companies is 9%, which is EV/invested capital less than 3) tend to also 50% higher than the long-term average of look attractive using other valuation 6%. What is driving such high returns? Is methodologies.
this sustainable?
this sustainable?
迈克尔·莫布森:我不知道,但一个可能的解释是我们经济性质的转变。一二十年前,大多数企业主要投资于有形资产,比如大型工厂以获取规模经济。但近年来,经济已转向无形资产。研究人员迈克尔·莫布森:我不知道,但早期已经确立了投入资本回报率与市净率之间的关系。这就是沃伦·巴菲特所称的“1 美元测试”。基本思想很简单:如果你投资获得的回报高于资本成本,那么投入企业的 1 美元在市场上就值超过 1 美元。
Michael Mauboussin: Researchers Michael Mauboussin: I don't know, but one established the relationship between return on likely explanation is the shift in the nature of invested capital and price to book a while ago. our economy. A generation or two ago, most This is what Warren Buffett has called the "$1 businesses invested primarily in tangible test." The basic idea is simple: If you invest so assets. Think large factories capturing as to earn above the cost of capital, $1 economics of scale. But in recent years the deployed in the business is worth more than $1 economy has shifted toward intangible assets. in the market.
我们从中可以看到,35 年来资本支出占销售额的比重持续下降,以及
We see this in the 35-year fall in capital expenditures as a percentage of sales and a
我不认为这是一个特别好的估值指标来应对这种潜在情景,原因有几个。首先,除非你做了大量调整,否则很难获得可比较的数字。拿两家公司的例子来说,经济利润既反映了投资利差的幅度,也体现了投入资本的规模。
I don't think it's a particularly good valuation part to address this potential scenario. metric for a couple of reasons. First, unless Economic profit reflects the magnitude of the you make a lot of adjustments, it is hard to get investment spread as well the amount of comparable figures. Take the example of two capital invested.
零售商。一家采用租赁门店,另一家则购置自有物业。这两家公司在表面上的会计数字会截然不同,但如果把第一家公司的租约资本化,它们就会变得非常相似。所以,可比性是个问题。再结合我对上一个问题的回答来看,问题的关键在于,最大化经济利润本质上就是最大化企业价值与投入资本之间的差额。
retailers. One leases its stores and the other buys them. The companies will have very To tie it back into my comment in question, it different accounting figures on the surface, but turns out maximizing economic profit is what would be much more similar if you capitalized maximizes the difference between enterprise leases for the first one. So comparability is value and invested capital.
tricky.
tricky.
约翰·罗通蒂:我知道没有任何一个指标适用于所有企业。但你在分析大多数企业时,有没有一个特别偏好的现金流衡量标准?经营现金流减去资本支出?EBITDA(息税折旧摊销前利润)减去资本支出?净利润加上折旧和摊销?股东盈余?
John Rotonti: I know that no one metric is Second, the ratio does not take growth into appropriate for all businesses. But do you consideration. Imagine you have a pair of have a particular measure of cash flow that businesses that have the same positive return you prefer when analyzing most businesses? spread in excess of the cost of capital, but one Operating cash flow less capital of the businesses is growing much faster than expenditures? EBITDA less capital the other. The faster-growing business will expenditures? Net income plus depreciation have a justifiably higher ratio of enterprise and amortization? Owner earnings?
价值/投入资本。
value/invested capital.
迈克尔·莫布森:我认为估值一个企业的最佳方式就是贴现现金流(DCF)模型。我相信我们行业的一个恒量是,企业的价值等于自由现金流的现值。不论是什么类型的企业,这一点都成立。不同的企业产生自由现金流的路径不同,但那是价值的普遍来源。你可以用估值倍数来补充核心的 DCF 模型,但我认为 DCF 应该处于估值的核心位置。
Michael Mauboussin: I believe one of the My preferred way to value all business is a constants in our industry is that the value of a discounted cash flow (DCF) model. You can business is the present value of free cash flow. use multiples to supplement the core DCF It doesn't matter what kind of business it is. model, but I think DCF should be at the center Businesses have different paths to generating of valuation. free cash flow, but that's the universal source of value.
约翰·罗通蒂:1995 年您写道:“虽然我们的分析强烈表明,市场看重高回报的税后净营业利润(NOPAT)减去未来增长投资后的自由现金流(FCF),但从技术定义上看,得出管理者唯一目标是最大化投入资本回报率的结论是错误的。事实上,管理层的首要目标应该是最大化企业价值与投入资本之间的差额。”您近期的研究是否仍表明这一点?
John Rotonti: In 1995 you wrote, "Although our analysis firmly suggests that Free cash flow (FCF) is technically defined as the market appreciates high-return net operating profit after tax (NOPAT) minus businesses, it is incorrect to conclude that a investments in future growth. You can think of manager's sole objective is to maximize NOPAT as the cash profit a company would returns on invested capital. In fact, have if it had no financial leverage. management's prime goal should be to Investments include changes in net working maximize the difference between enterprise capital, capital expenditures (commonly value and invested capital." Does your expressed as net of depreciation), and mergers recent research still suggest this to be the and acquisitions.
case?
case?
你刚才提到的这些指标,确实常常被用作自由现金流(FCF)的替代变量,但既然能算准,就没理由去用近似值。迈克尔·莫布辛:没错,这是对前面观点的延伸。价值创造的前提,是一家公司能做到投资回报高于资本成本。
Some of the measures you mentioned are Michael Mauboussin: Right, this is an proxies for FCF, but there's no reason not to extension of the prior point. Value creation calculate the correct number instead of using requires that a company invests above the cost proxies.
对于资本来说,一旦一家公司获得了合理的回报,增长就会放大价值的创造。约翰·罗通蒂:有没有衡量或代表内在价值增长的最佳单一指标?
of capital. Once a company earns appropriate returns, growth amplifies value creation. John Rotonti: Is there a single best measure or proxy for growth of intrinsic value?
问题可能这样产生。假设一家公司为迈克尔·莫布森设立了一套激励计划:我从未用这个概念做过代理变量,但它应是净资产收益率与增长率的组合。该公司的管理层可能倾向于只接受净资产收益率很高的项目,甚至会拒绝那些创造价值但却会缩小净资产收益率与资本成本之间差距的项目。经济增加值(EVA)的衡量标准,其基本理念是:对于净资产收益率与资本成本接近的公司,增长并不重要。但当两者之间的差距拉大为正数时,增长的重要性就会放大。
Here's how the issue might arise. Imagine that a company sets up an incentive program for Michael Mauboussin: I have never used a executives that rewards simply the spread proxy for this concept, but it would be a between ROIC and the cost of capital. combination of ROIC and growth. The basic Executives at that company may be tempted to idea is that for companies earning an ROIC only accept very high ROIC projects and similar to the cost of capital, growth does not indeed to reject value-creating projects that matter much. But as the spread becomes a diminish the spread of ROIC to the cost of larger positive, the importance of growth is capital. The measure of economic value added, amplified.
经济利润的一种变体,是在……背景下发展起来的。
a version of economic profit, was developed in
约翰·罗通蒂:你如何评估一家公司的资产负债表?你会关注特定的保障倍数或债务比率吗?
迈克尔·莫布森:首先,关键是要确保你正确识别了所有负债。租赁、养老金资金不足以及股权补偿等,都是你需要纳入考量的项目。
John Rotonti: How do you evaluate a company's balance sheet? Do you look for a Operating unit heads should be paid on key particular coverage or debt ratio? value drivers of their business — typically sales growth, operating profit margins, and Michael Mauboussin: First, it is important to capital intensity. Finally, front-line employees make sure that you properly recognize all of should get paid on the metric they can control. the liabilities. Leases, underfunded pensions, For example, you might offer an incentive for and equity compensation are some examples an accounts receivable clerk to collect money of items that you need to capture. more efficiently.
从那以后,我没什么花哨的操作。在每种情况下,总体目标都是使薪酬与员工能够获得的现金流的覆盖比率和波动性相匹配。评级机构也对此拥有控制权。
From there, I don't do anything fancy. I mostly In each case, the overarching goal is to match look at coverage ratios and the volatility of the compensation with what the employee can cash flows. The ratings agencies also have control.
约翰·罗通蒂:你认为投资者应该向每个管理团队提出一个什么问题?
very good base rate data on the rate of default by rating, so that can be a helpful input into John Rotonti: What is one question you the thinking. think investors should ask of each management team?
约翰·罗通蒂:一些高投入资本回报率的企业因为大规模股份回购而出现了股东赤字(账面价值为负)。迈克尔·莫布森:我不确定这本身是否意味着价值缺失。但所有投资者都应该问一个问题。不过,我认为在会见管理层时,你应该牢记三件事。
John Rotonti: Some high ROIC businesses have shareholder deficits (negative book Michael Mauboussin: I'm not sure there is value) because of large share repurchases. one question that all investors should ask. But Are businesses that lack book equity value I think there are three things that you should inherently riskier investments? bear in mind when you meet management.
迈克尔·莫布森:不。首先,价值一家企业的对话,怎么会和其他投资者的对话不同?你如果让管理层按他们的幻灯片一路讲下去,就听不到任何新东西。一家企业的价值是未来自由现金流的现值,而账面价值的会计处理与这几乎没有关系。唯一的例外是,如果一家公司有承诺或金融工具需要关注。
Michael Mauboussin: No. The value of a First, how can you have a conversation that is business is the present value of the future free different than the conversations of other cash flow, and the accounting for book value investors? If you just let management walk has little bearing on that. The only caveat is if through their slide deck, you will not hear a company has commitments or instruments anything novel.
在契约条款中常以账面价值等指标作为约束条件。但从经济角度看,账面价值为负并不值得担忧。
其次,你应该意识到,我们对自身看重的事物往往倾向于过度乐观。因此高管们通常过于乐观。要认清这一点。同时,大多数人在评价身边的人时却相当准确。所以,与其直接询问管理层自身情况,不如向他们打听供应商、竞争对手和客户,这样得到的答案可能更真实可信。
我刚开始做分析师时,曾跟踪研究过罗尔斯顿普瑞纳公司(Ralston Purina),这家公司在回购股票方面相当激进。我发现其账面价值不断下降,而市场价值却持续上升,两者之间的背离日益扩大。
with covenants tied to measures such as book value. But from an economic point of view, Second, you should be aware that we all have negative book value is not a concern. a tendency to be optimistic about things that are important to us. So executives are typically When I started out as an analyst, I followed overly optimistic. Recognize that. At the same Ralston Purina, a company that was aggressive time, most people are pretty accurate in in buying back shares. I documented the evaluating those around them. So ask growing disparity between book value, which management about suppliers, competitors, and was going down, and market value, which was customers, and you may get more accurate going up. answers than if you ask them about themselves.
约翰·罗通蒂:你更偏好哪些绩效指标?另外,我始终想弄明白的是,管理层的薪酬应该基于什么来制定?对于资本配置决策,管理层是如何思考的?我对他们会具体做什么的细节不太感兴趣——虽然那也很重要——我更关心他们总体上如何看待这个话题。我跟我导师阿尔·拉帕波特合著的《预期投资》一书,有一章专门讲这个。
John Rotonti: Do you have any performance metrics that you prefer Finally, I always try to understand how management compensation be based on? management thinks about capital allocation decisions. I'm less interested in the details of Michael Mauboussin: Expectations Investing, what they might do, although that's important, a book I co-authored with my mentor Al and am more interested in how they think Rappaport, has a chapter dedicated to this about the topic in general.
主题。我们认为,C 级高管可以获得股权薪酬,但期权或限制性股票单位应与长期跑赢市场或适当同行群体的表现挂钩。其核心理念是,你应当愿意为卓越的相对表现支付高额报酬,而不是让市场的反复无常来决定薪酬的大部分。
约翰·罗通蒂:哪些品质会带来长期超越市场的表现?
迈克尔·莫布森:没有公式。
高 ROIC 企业的超额收益并不突出,因为市场知道它们是高 ROIC 企业。
topic. We argue that C-level executives can be compensated with equity but that the options John Rotonti: Which qualities lead to share or restricted stock units should be indexed to outperformance over a long period of time? the market or an appropriate peer group. The idea is that you should be willing to pay dearly Michael Mauboussin: There is no formula. for superior relative performance, rather than The excess returns for high ROIC businesses let the vagaries of the market determine the are not exceptional, because the market knows bulk of the pay. they are high ROIC businesses.
约翰·罗通蒂:有没有一个关于投资的问题,是我本应该问你却一直遗漏的?最好的答案是,一只股票起步时背负低预期,然后持续超越这个预期。
John Rotonti: Is there a question about The best answer is that a stock starts off with investing that I should be asking you that low expectations and then consistently I've missed?
通常能交出比市场预期更好的业绩。用处不大,但准确。迈克尔·莫布森:我现在感到兴奋的工作与参考级预测有关。丹尼尔·卡尼曼通过“内部”视角与“外部”视角的概念推广了这一点。基本思路是,我们天生倾向于通过收集信息并将其与我们自身的输入相结合来进行预测。这就是内部视角。想象一个大学生考虑她何时能完成学期论文。她会考虑作业看起来有多难,会考虑自己的时间安排,然后预估一个完成日期。约翰·罗通蒂:投资者应该采取什么步骤来避免价值陷阱?迈克尔·莫布森:价值陷阱通常是一家业务结构上处于劣势的企业导致的结果。所以最好的建议是深入思考可持续的竞争优势。研究还表明,分析师在低估预测方面的失误往往多于高估,这一点值得牢记。
delivers results better than what the market anticipated. Not very helpful but accurate. Michael Mauboussin: The work I'm excited by now has to do with reference-class John Rotonti: What step(s) should investors forecasting. Danny Kahneman has popularized take to try avoid value traps? this with the idea of the "inside" versus "outside" view. The basic idea is that we Michael Mauboussin: Value traps are usually naturally try to forecast by gathering the result of a business that is structurally information that we combine with our own disadvantaged. So the best advice is to think input. That's the inside view. Think of a deeply about sustainable competitive college student considering when she will advantage. Research also shows that analysts complete a term paper. She will think about tend to miss estimates more on the downside how hard the assignment appears to be, will than on the upside, and that's important to bear consider her schedule, and project a date that in mind. she will be done.
约翰·罗通蒂:你认为,外部视角,相比之下,考虑的是投资者应该从行为金融学中学到的最重要一课是什么?
迈克尔·莫布森:实际上有两条线索。第一条是关于启发式思维与偏差的研究。基本理念是,我们都会使用启发式思维,或者说经验法则,这能为我们节省大量时间,而且通常相当准确。但这些启发式思维伴随着相关的偏差,可能导致糟糕的决策。
John Rotonti: What do you think is the The outside view, by contrast, considers the most important lesson investors should problem as an instance of a larger reference learn from the field of behavioral finance? class. It basically asks the question, "what happened when other people were in this Michael Mauboussin: There are really two situation before?" It is an unnatural way to threads. The first is the work on heuristics and think because you have to discount your biases. The basic idea is that we all tend to use personal information and then find and appeal heuristics, or rules of thumb, which save us a to a base rate. So in the case of our college great deal of time and are generally quite student, she would ask "when other students accurate. But these heuristics come with had a similar paper due, how long did it take associated biases, which can lead to poor them to complete it?"
决策。导致偏差的因素清单很长,但对投资者而言,其中最重要的几条包括过度自信、外部观点通常比内部观点更能提供准确且悲观的答案、确认偏误、框架效应、近因效应以及锚定效应。
decisions. There is a very long list of biases, but some of the most important ones for Perhaps it will come as no surprise that the investors include overconfidence, outside view commonly provides a more confirmation, framing, recency, and accurate, and pessimistic answer, than the anchoring. inside view.
第二个主题是前景理论。投资者可以在工作的许多方面运用外部视角,比如从企业绩效建模到评估并购,因为外部视角表明,在风险情境中,我们的决策往往不够理性。一个典型的例子是损失厌恶,即我们承受损失的痛苦大约是获得同等收益时快感的两倍。我认为这确实是一个相当强大的工具,但通常未得到充分利用。
The second thread is on prospect theory, Investors can incorporate the outside view in which shows that our decisions in risky many aspects of their jobs, from modeling settings are less than optimal. A classic corporate performance to assessing M&A. I example is loss aversion, the idea that we think it's a really powerful tool that is suffer losses roughly twice as much as generally underutilized.
同样规模的收益。
comparably sized gains.
约翰·罗通蒂:您认为最常见的惯性偏见是什么?
John Rotonti: What do you think is the most common behavioral bias?
迈克尔·莫布森:我不清楚哪一种最普遍,但确认偏误是很危险的一种,因为它会阻止我们在新信息出现时恰当地更新自己的观点。作为投资者,想要避开它非常困难。
Michael Mauboussin: I don't know which is most common, but confirmation bias is a dangerous one because it prevents us from appropriately updating our views when new information arrives. It is very hard to sidestep as an investor.