我们时代的竞赛
GMO 季报 2013 年 4 月 我们生命中的赛跑 杰里米·格兰瑟姆(第 2–12 页) 奔向均衡路上的一件趣事 本·因克(第 13–22 页) GMO 季报 2013 年 4 月 我们生命中的赛跑 1 杰里米·格兰瑟姆 摘要 我们的全球经济,在资源与自然系统的使用上肆无忌惮,已显现出诸多潜在失败信号——那些信号曾让许多先前的文明轰然倒塌。不过,纯属运气的是,我们这个文明具备两个或许能救我们于水火的特征:生育率下降,以及替代能源的进步。我们的存亡很可能取决于我们是否竭尽全力去推动这两方面的进展。然而,既得利益集团牢牢守护着现状,多数人更偏爱乐观的宣传,而非令人不安的真相和空想,而非艰难的行动。这很可能是一场胜负难料的赛跑。
GMO QUARTERLY LETTER April 2013 The Race of Our Lives Jeremy Grantham (pages 2-12) A Funny Thing Happened on the Way to Equilibrium Ben Inker (pages 13-22) GMO QUARTERLY LETTER April 2013 The Race of Our Lives 1 Jeremy Grantham Summary Our global economy, reckless in its use of all resources and natural systems, shows many of the indicators of potential failure that brought down so many civilizations before ours. By sheer luck, though, ours has two features that might just save our bacon: declining fertility rates and progress in alternative energy. Our survival might well depend on doing everything we can to encourage their progress. Vested interests, though, defend the status quo effectively and the majority much prefers optimistic propaganda to uncomfortable truth and wishful thinking rather than tough action. It is likely to be a close race.
文明的崩塌
文明的崩塌对许多人来说是一个扣人心弦且引人共鸣的话题,多年来也吸引了众多学者研究。他们从那些往往留下很少记录的文明中,一片片拼凑起证据,看到了导致先前文明崩塌的许多可能因素。但在学者的研究中,一些主题反复出现:地理位置不幸,缺乏可利用的动植物资源、土壤、水源和能源;管理不善,过度使用和耗尽资源,尤其是森林、土壤和水源;缺乏安全余量或储备来应对不可避免的干旱和饥荒;过度扩张和代价高昂的不必要战争;有时是道德精神的失败,开拓者的坚韧和牺牲意愿被更软弱、更愤世嫉俗的方式所取代;一个日益庞大的帝国不断变得复杂,逐渐在人力成本和有限资源的使用上代价过高,以至于得不偿失,直到对普通公民的税收和其他要求变得难以承受,于是,一个被推至不可持续极限的帝国,甚至连那些在早期本可轻易抵御的微小冲击也变得脆弱不堪。不过,学者们最大的共识可能是,走向衰落的文明都遭受着日益膨胀的傲慢和过度自信:相信自己在经历过多次考验后,能力总能应对挑战,而且不断增长的弱点迹象可以被视为悲观主义而忽略。毕竟,在经历了 200 年甚至 500 年后,许多其他危险都曾发出过警告,但它们总是挺了过来。直到最终,再也挺不过去了。
The Fall of Civilizations The collapse of civilizations is a gripping and resonant topic for many of us and one that has attracted many scholars over the years. They see many possible contributing factors to the collapse of previous civilizations, the evidence pieced together shard by shard from civilizations that often left few records. But some themes reoccur in the scholars’ work: geographic locations that had misfortune in the availability of useful animal and vegetable life, soil, water, and a source of energy; mismanagement in the overuse and depletion of resources, especially forests, soil, and water; the lack of a safety margin or storage against inevitable droughts and famines; overexpansion and costly unnecessary wars; sometimes a failure of moral spirit as the pioneering toughness and willingness to sacrifice gave way to softer and more cynical ways; increasing complexity of a growing empire that became by degree too expensive in human costs and in the use of limited resources to justify the effort, until the taxes and other demands on ordinary citizens became unbearable, so that an empire, pushed beyond sustainable limits, became vulnerable to even modest shocks that could in earlier days have been easily withstood. Probably the greatest agreement among scholars, though, is that the failing civilizations suffered from growing hubris and overconfidence: the belief that their capabilities after many earlier tests would always rise to the occasion and that growing signs of weakness could be ignored as pessimistic. After all, after 200 or even 500 years, many other dangers had been warned of yet always they had persevered. Until finally they did not.
坏消息是,当我读到这些五花八门的灾难场景——我还没列全——它们每一个看起来都合情合理,而且似乎都与历史上帝国和文明(无论大小)的多次崩溃有关联。就在最近,其中一位学者威廉·奥弗斯写了一本新书《过度的伟大》(书名引用自吉本的《罗马帝国衰亡史》),副标题是“文明为何失败”。这本书仅用 70 页的小篇幅,就直截了当地总结和整合了所有会走向失败的方式,但附带大量注释和参考文献。它用极其通俗、简单的语言写成,把失败的原因分为六类。不幸的是,1 这是一系列六份特别报告中的最后一份,所有报告均可通过免费注册在 GMO 网站上找到:“是时候醒来了:资源充足、价格下跌的日子将永远结束”,2011 年 4 月 25 日;“资源限制 2:将危险与仅仅是严重区分开来”,2011 年 7 月 22 日;“你的孙辈没有价值(以及资本主义的其他缺陷)”,2012 年 2 月 24 日;“欢迎来到反乌托邦!”2012 年 7 月 31 日;“通往零增长之路”,2012 年 11 月 20 日;“在低增长世界投资”,2013 年 2 月 6 日。
The bad news is that as I read about these varied scenarios – and I have missed listing several – they all appear plausible and each seems to be relevant to several earlier collapses of empires and civilizations both large and small. Very recently, one of these scholars, William Ophuls, wrote a new book, Immoderate Greatness2 (a quote from Gibbons’s Decline and Fall of the Roman Empire), with the subtitle Why Civilizations Fail. It is a straightforward summary and synthesis of all of the ways to fail in 70 small pages, yet with extensive notes and references. It is written in remarkably accessible, simple language and divides the causes of failure into six categories. Unfortunately, 1 The last of a series of six special reports, all of which can be found on the GMO website with free registration: “Time to Wake Up: Days of Abundant Re-sources and Falling Prices Are Over Forever,” April 25, 2011; “Resource Limitations 2: Separating the Dangerous from the Merely Serious,” July 22, 2011; “Your Grandchildren Have No Value (and Other Deficiencies of Capitalism),” February 24, 2012; "Welcome to Dystopia!" July 31, 2012; "On the Road to Zero Growth" November 20, 2012; “Investing In a Low-Growth World,” February 6, 2013.
2 由 CreateSpace 独立出版平台出版(2012 年 12 月 28 日)。Kindle 版仅售 5 美元。可惜的是,我一分钱版税都拿不到。
2 Published by CreateSpace Independent Publishing Platform (December 28, 2012). It costs just $5 on Kindle. Unfortunately, I receive no royalties.
GMO 季度信函——《我们生命中的赛跑》——2013 年 4 月 2 日,所有这六个因素似乎在今天都不同程度地适用于我们,而当一个因素或许还可控时——尽管往往并非如此——他认为我们能同时应对全部六个因素的可能性微乎其微。这封信很有说服力,值得一读。阅读大约需要两小时。
GMO Quarterly Letter – The Race of Our Lives – April 2013 2 all six seem to apply to us today in varying degrees, and where one factor might be manageable – although often has not been – he makes the chances of our managing all six seem slight. It is persuasive and needs to be read. It takes about two hours.
威廉·奥弗尔斯的结论是:我们无法抵御那令人触目惊心的侵蚀因素的清单,事实上,当今文明冲向悬崖边缘的狂奔已处于相当晚期阶段,几乎没有什么能拦住我们。他对历史的研究让他相信,文明其实是被硬编码为自我毁灭的——天生就过于自信,持续推动增长直至越过极限,风险积累到断裂点。他带来的好消息是:在新黑暗时代之后,当文明再次萌芽(那时人口想必会少得多),我们将获得足够理智,变得更不贪得无厌、不那么狂妄自大,对增长和资源使用抱持更多谦卑,并更坚定地与我们从太阳持续获得的自然能量,以及可持续供给我们的热量、食物和水,保持平衡共存。
William Ophuls’s conclusion is that we will not resist the impressive list of erosive factors and that, in fact, we are in the fairly late stages of our current civilization’s race for the cliff edge with nothing much to head us off. His study of history leads him to believe that civilizations are actually hard wired to self-destruct: programmed to be overconfident, to keep on pushing for growth until limits are overstepped and risks accumulated to the breaking point. His offer of good news is that after the New Dark Ages, when civilization again rears its head, presumably with a much smaller population, we will have acquired the good sense to be less overreaching, less hubristic, a lot humbler about growth and our use of resources, and more determined to live in balance with the natural energy we receive from the sun and the heat, food, and water with which we can sustainably be provided.
关于当前的困境,我只想说两点。第一,这次有一种压力尤其严重:对坏消息的抵触。投资生涯让我越来越清楚地认识到——随着岁月流逝,这种体会愈发深刻——人们,尤其是投资者(而且我相信美国人尤其如此),更喜欢好消息和美好幻想,而不是坏消息;而且总有既得利益者提供信手拈来的、乐观的替代方案来回避坏消息。好消息显然更容易推销。特别是在投资领域,好消息更利于生意;在资源紧缺问题上,好消息对资源供应商更有利;而在气候变化问题上——声称它基本不存在甚至是个骗局的好消息——对能源公司(所有公司中规模最大、利润最丰厚的群体之一)更有利。历史学家指出,人们天生抗拒变革的需要:现状总有明确的受益者,而变革带来的好处,对潜在的受益者而言却显得模糊且不确定。历来如此。但今天有一种情况虽然历史上并非绝无仅有,却比以往罕见得多:现有体系中的强大受益者几乎完全控制了政府。
I have just two comments about our current problems. First, that there is one particular pressure this time that seems particularly serious: aversion to bad news. The investment business has taught me – increasingly as the years have passed – that people, especially investors (and, I believe, Americans), prefer good news and wishful thinking to bad news; and that there are always vested interests to offer facile, optimistic alternatives to the bad news. The good news is obviously an easier sell. Good news in investing in particular is better for business; good news on resource limitation is better for the suppliers of resources; and good news on climate change – that it basically does not exist and is even a hoax – is better for energy companies, among the biggest and most profitable of all companies. Historians have pointed out the bias against the need for change: there are always clear beneficiaries of the current state of affairs but the benefits of a changed world in contrast will look vague and uncertain to the likely beneficiaries. That is always the case. What is less common, although not unique in history, is what we have today: the near complete control of government by the powerful beneficiaries of the current system.
第二个观点是,尽管我认为奥弗斯的论证条理清晰,而且必须承认出现非常负面结果的可能性很大,但我仍觉得这一观点过于悲观(说来可悲,在这个话题上我很少如此乐观)。确实,我们在资源消耗和环境问题上冒得风险极大,特别是气候破坏和海洋酸化方面。但我认为,那种确信我们必将坠崖的论断,忽视了两个极其幸运的(甚至可以说是受之有愧的)礼物——这在任何一个面临压力的早期文明都不曾有过。它们或许会像美国骑兵队一样及时赶到,正好将我们从悬崖边缘拉回来。但充其量,正如惠灵顿公爵在滑铁卢战役中那句被广为引用的名言所说,这将是一场“惊险万分、险胜的较量”。这将是我们毕生最紧迫的竞赛。
The second point is that although I find Ophuls’s argument well-reasoned and although I must acknowledge the strong possibility of a very negative outcome, I feel it is too pessimistic (which, sadly, is a rare occurrence for me on this topic). Yes, we are taking extreme risks with resource depletion and with the environment, especially concerning climate damage and ocean acidification. Yet I believe the case for the near certainty of our running off the cliff misses the existence of two extraordinarily lucky (and, one could argue, undeserved) gifts that were not available to any prior stressed civilization. They may arrive like the U.S. Cavalry, just in time to turn us away from the cliff edge. But at best, as Wellington is famously paraphrased as saying about the Battle of Waterloo, it will be a “damn closely run thing.”3 It will be the race of our lives.
我们最后的希望:生育率下降与可再生能源技术的进步
生育率下降
在可能帮助当今世界至少避免部分崩溃的两个极其幸运的因素中,第一个是生育率下降。马尔萨斯正确分析了我们当时(1800 年)历史的主要问题:人口始终与粮食供应保持同步,使得即便是成功的文明社会,也仅差几个歉收的年份就会陷入饥荒。他预言这种情况将永远持续下去,但他在两个方面错了。第一个是短期因素——仅仅存在了两三百年,因此对我们这个物种的长期生存来说无关紧要——那就是以煤炭和石油形式提取先前储存的能源的能力增强了。这个碳氢化合物插曲终将结束,要么是在可经济开采的碳氢化合物份额耗尽之时,要么更可能是在热力学第二定律的严酷法则施加其意志之时:足够多的像煤炭和石油这类较高形式的、方便且紧凑的能源,将被转化为热量、废弃物,尤其是二氧化碳,从而破坏我们的气候,进而破坏我们的整个环境。
Our Last Best Hopes: Declining Fertility and Improving Technology for Renewable Energy Declining Fertility The first of the two incredibly fortunate factors that might enable our current world to avoid at least partial collapse is declining fertility. Malthus correctly analyzed the main problem of our then history (in 1800): population had always kept up with food supply, leaving even successful societies only a few bad growing seasons away from starvation. He predicted that this would always be the case and he was wrong on two counts. The first is a short-term factor – only existing for 200 or 300 years and therefore irrelevant for the longer term of our species – and that is the increased ability to extract previously stored energy in the form of coal and oil. This hydrocarbon interlude will end either when that share of hydrocarbons that can be extracted economically is used up, or more likely when the tyranny of the second law of thermodynamics imposes its will: enough of the higher forms of convenient compact energy like coal and oil will have been converted into heat, waste, and especially carbon dioxide to ruin our climate in particular and our environment in general.
3 原话是:“这件事真是太玄了——你这辈子见过最险的一回。”他对“nice”一词用得巧妙,那个年代这个词也有“不确定性”的意思。
3 The actual quote was, “It has been a damned nice thing – the nearest run thing you ever saw in your life.” His is a nice use of the word “nice,” which back then also had the meaning of “uncertainty.”
GMO 季度信——我们一生中的赛跑——2013 年 4 月 3 日 然而,马尔萨斯完全忽视了生育率的下降,这是一个潜在的长期因素,因而对我们物种的生存来说更为关键。无论是他还是 1960 年之前的任何人,都从未想过,即使我们变得越来越富有,也会自愿选择少生孩子。在他那个时代,直到 20 世纪早期,富裕家庭通常会生 8 个或更多孩子。具有讽刺意味的是,结果证明,正是那些给我们带来过度消费和不必要资源快速消耗问题的本能,也让我们产生了孩子麻烦且极其昂贵的态度。医疗服务的改善曾进一步让人口爆炸成为可能,如今则让人们对组建小家庭有了信心。农业技术的提升降低了许多孩子作为劳动力的重要性。不过,生育率下降最明显的驱动因素,是女性受教育程度的提高和节育方法的进步。这些因素的综合效应带来了一种深刻的变化,这种变化在 100 年前甚至无人能猜到;事实上,人口增长和生育率一直上升到了 1960 年左右——就在不久前。
GMO Quarterly Letter – The Race of Our Lives – April 2013 3 Malthus, however, completely missed declining fertility, a potentially very long-term and hence much more critical factor to the survival of our species. Neither he nor anyone else before 1960 even dreamed that we would voluntarily decide to have fewer children even as we became richer. In his day and until the early twentieth century, rich families routinely had eight or more children. Ironically, it has turned out that the same instincts that bring us the problems of excessive consumption and unnecessarily rapid resource depletion have also brought us the attitude that children are inconvenient and desperately expensive. Improved medical services that further allowed populations to explode now allow the confidence to have smaller families. Increased farm technology lowers the significance of the labor from many children. The most obvious drivers of lower birth rates, though, are the improved education of women and advances in birth control methods. The net effect of these factors is a change so profound that just a hundred years ago it was not even guessed at, and indeed population growth and fertility continued to rise until about 1960 – just the other day.
以下图表展示了显著且有前景的数据。图 1 至图 4 中 2.1 处的虚线水平线,是现代社会正常情况下维持人口稳定所需的生育率水平。图 1 显示,亚洲较富裕的国家(包括中国)生育率大幅下降,这些国家人口约占全球的五分之一。图 1 亚洲人口下降趋势 生育率(每名妇女生育数) 6.0 5.0 4.0 3.0 替代水平 2.0 中国 日本 韩国 新加坡 1.0 香港 0.0 1961 1971 1981 1991 2001 2011 来源:世界银行 数据截至 2012 年 12 月 31 日 图 2 显示,规模更大、更富裕的国家的生育率已降至略低于替代水平的均值,而美国 2012 年生育率的最新数据更是跌破替代水平。图 3 展示了一些重要的、有时甚至是出人意料到惊人的例子。最令人意外的是伊朗,其生育率从 1960 年的 7(每名妇女生育数!)降至今天几乎难以置信的 1.6。另一个大型伊斯兰国家的显著例子是孟加拉国,其生育率也从 1960 年的 7 降至 2.2。考虑到他们极度贫困,这一点非同寻常。特别重要的印度,拥有 12 亿人口,其生育率从 6 降至 2.6。绝对数字来看,这相当显著,但考虑到前两个例子以及印度面临的人口过剩压力,这几乎令人失望。图 4 展示了更严重的令人失望之处。是的,这些国家的生育率已经下降,但人口仍在快速增长,而且其中大多数国家已间歇性地出现粮食问题。它们几乎都在非洲。除非它们和全世界运气够好,情况能有所改善(或许在富裕国家的适当帮助下),否则我们最终可能会被研究长期文明的学者视为像是存在两套不同的体系:一套在非洲,充斥着失败国家、贫困、营养不良和人口快速增长,可能越来越只能靠自己应对;另一套在世界其他地区,拥有显著且仍在增长的财富,生育率低于替代水平,形成了一个资源和全球贸易的统一市场,它们之间的贸易就像组成一个庞大的老式帝国经济体。GMO 季度信函——我们一生的竞赛——2013 年 4 月 4 图 2 “西方世界”的低出生率 “西方世界”的低出生率 4.0 3.5 3.0 生育率(每名妇女生育数) 2.5 替代水平 法国 2.0 美国 英国 加拿大 1.5 意大利 德国 1.0 0.5 0.0 1961 1971 1981 1991 2001 2011 来源:世界银行、美国疾病控制与预防中心 数据截至 2012 年 12 月 31 日 图 3 新兴市场国家的重要下降 8.0 7.0 6.0 生育率(每名妇女生育数) 5.0 4.0 埃及 3.0 马来西亚 印度 替代水平 摩洛哥 2.0 孟加拉国 伊朗 1.0 0.0 1961 1971 1981 1991 2001 2011 来源:世界银行 数据截至 2012 年 12 月 31 日
The following exhibits show the remarkable and promising data. The dashed horizontal line at 2.1 in Exhibits 1 through 4 is the fertility level required to have a stable population in the modern world under normal conditions. Exhibit 1 shows the remarkable drop in fertility in the richer East Asian countries, including China, with almost a fifth Exhibit 1 Falling Populations in Asia p 6.0 5.0 Fertility Rate, Children / Woman 4.0 3.0 Replacement Rate 2.0 China Japan Korea Singapore 1.0 Hong Kong 0.0 1961 1971 1981 1991 2001 2011 Source: World Bank As of 12/31/12 of the world’s population. Exhibit 2 shows the drop in the larger and wealthier countries to an average level just be-low replacement, with the very latest update for U.S. fertility in 2012 dropping below replacement. Exhibit 3 shows selected important and sometimes spectacularly unexpected examples. At the top of the unexpected list is Iran, which has dropped from a fertility rate of 7 – children per woman! – in 1960 to an almost unbelievable 1.6 today. Another remarkable example of a large Islamic country is Bangladesh, which has also fallen from 7 in 1960 to 2.2. This is extraordinary given their extreme poverty. The particularly important India, with its 1.2 billion people, has fallen from 6 to 2.6. This is quite remarkable in absolute terms, but given the previous two examples and given India’s pressure from overpopulation, it’s almost a disappointment. Exhibit 4 shows the more serious disappointments. Yes, the rates have dropped in these countries, but their populations are still growing rapidly and most of them have intermittent food problems already. They are almost all in Africa. Unless they and the world are lucky and they improve (perhaps with appropriate help from rich countries), we are likely to end up looking to the students of long-term civilizations as if we have had two separate systems: one in Africa, with failed states, poverty and malnutrition, and rapid population GMO Quarterly Letter – The Race of Our Lives – April 2013 4 Exhibit 2 Low Birthrates in the “Western World” Low Birthrates in the "Western World" 4.0 3.5 3.0 Fertility Rate, Children / Woman 2.5 Replacement Rate France 2.0 United States United Kingdom Canada 1.5 Italy Germany 1.0 0.5 0.0 1961 1971 1981 1991 2001 2011 Source: World Bank, Centers for Disease Control and Prevention As of 12/31/12 Exhibit 3 Important Declines in Emerging g g 8.0 7.0 6.0 Fertility Rate, Children / Woman 5.0 4.0 Egypt 3.0 Malaysia India Replacement Rate Morocco 2.0 Bangladesh Iran 1.0 0.0 1961 1971 1981 1991 2001 2011 Source: World Bank As of 12/31/12 growth, probably having been left increasingly to cope on their own; the second in the rest of the world, with substantial and still growing affluence and with fertility below the replacement rate, forming a single market for resources and global trade in general, and trading as if they comprised one gigantic old fashioned imperial economy.
GMO 季报——我们一生中的竞赛——2013 年 4 月
5
图表 4 抗拒变革/失败国家
抗拒变革/失败国家
9.0
8.0
7.0
索马里 —— 生育率,每名妇女生育数/人
赞比亚 6.0
乌干达
刚果 5.0
卢旺达
利比里亚 4.0
伊拉克 3.0
更替水平 2.0
1.0
0.0
1961 1971 1981 1991 2001 2011
数据来源:世界银行、美国疾病控制与预防中心
截至 2012 年 12 月 31 日
生育率的这一显著下降,是我们最后的、也是最美好的希望——无论从我们文明的角度,还是从我们星球上所有生命的福祉来看,都是如此。
图表 5 总结了历史数据,并展示了联合国数据中对未来全球人口更为乐观的预测。
图表 5 新兴世界人口的重要下降及预测,1950-2100 年——低生育率情景
9,000,000,000
8,000,000,000
全球
7,000,000,000
6,000,000,000
全球(不含非洲)
5,000,000,000
4,000,000,000
3,000,000,000
2,000,000,000
1,000,000,000
1950 1960 1970 1980 1990 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100
数据来源:联合国经济和社会事务部
截至 2012 年 12 月 6 日
未来预测不构成保证,仅反映截至其发布之日的情况,GMO 无义务且不会承诺更新此类预测。未来预测受制于众多假设、风险和不确定性,这些因素会随时间变化。实际结果可能与预测中预期的结果存在重大差异。
GMO Quarterly Letter – The Race of Our Lives – April 2013 5 Exhibit 4 Holdouts / Failed States Holdouts / Failed States 9.0 8.0 7.0 Somalia Fertility Rate, Children / Woman Zambia 6.0 Uganda Congo 5.0 Rwanda Liberia 4.0 Iraq 3.0 Replacement Rate 2.0 1.0 0.0 1961 1971 1981 1991 2001 2011 Source: World Bank, Centers for Disease Control and Prevention As of 12/31/12 This remarkable decline in fertility is our last best hope, both from our civilization’s point of view as well as for the well-being of all of the life on our planet. Exhibit 5 summarizes the past data and projects the more optimistic end of the U.N. data for future global population. The world’s population is shown peaking around 2050 at just Exhibit 5 Important Declines in Emerging World Population and Projection, 1950-2100 Low Fertility Scenario 9,000,000,000 8,000,000,000 World 7,000,000,000 6,000,000,000 World ex-Africa 5,000,000,000 4,000,000,000 3,000,000,000 2,000,000,000 1,000,000,000 1950 1960 1970 1980 1990 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100 Source: UN Department of Economic and Social Affairs As of 12/6/12 Future projections are not a guarantee and speak only as of the date they are made, and GMO assumes no duty to and does not undertake to update such projections. Future projections are subject to numerous assumptions, risks, and uncertainties, which change over time. Actual results may differ materially from those anticipated in the projections provided.
GMO 季度信函——《我们一生的竞赛》——2013 年 4 月 6 超过 80 亿,然后在 2100 年前下降到近 60 亿。除去非洲,全球人口在 2040 年达到略低于 65 亿,到 2100 年降至 40 亿以下,回到大约 1978 年的水平。非洲人口从 1950 年的约 2.5 亿增长到今天远超 10 亿,即使在相对乐观的前景下,到 2100 年仍将继续扩张到超过 23 亿。联合国更悲观的预测范围(未展示)显示人口持续增长,但增速放缓,到 110 亿甚至更高。在这个水平上,对全球粮食和全球法治的压力,尤其是在非洲,几乎肯定会过于巨大,欧佛尔斯的预言很可能成真。相比之下,较低的人口轨迹则带来了生存的强烈希望——即维持一个相对稳定的全球文明,并持续改善普通人的生活质量。因此,在任何地方帮助鼓励降低人口,其回报都极高。然而国际上几乎没有什么作为,就连通常善意满满的非政府组织也把这个议题当作烫手山芋。但我们可以做到,而且我猜我们确实会在这方面取得成功。与此同时,如果经济学家、《经济学人》杂志(不是要针对他们,但我倾向于对他们有更高期待),以及经济讨论总体上能多展望未来几十年,不再把人口增速下降当成可怕的经济威胁,而是看作我们最后也是最大的希望,那将令人鼓舞。当然,随着增长率迅速下降,人口快速老龄化,在这一变化传导过程中,一代人的时间里,劳动者将承担更多非劳动者带来的额外负担。之后情况会再次稳定下来。通过让年长者延长贡献时间,并促进各国女性充分参与,这一周期可以得到极大改善。另一种灾难性的选择是让不断增长的人口集体冲下悬崖。在一个资源有限的世界里,经济学界在长期可持续性方面做得尤其不够。这是他们清醒面对这方面问题的时候了。幸运的是,即使没有潜在的更清醒、更长期的经济理论的帮助,个人在生育方面的决定很可能仍然能完成这项工作。
GMO Quarterly Letter – The Race of Our Lives – April 2013 6 over 8 billion and then declining to near 6 billion by 2100. Ex-Africa, it reaches just under 6.5 billion in 2040 and declines to below 4 billion in 2100, back to where it was in about 1978. Africa is shown growing from about 250 million in 1950 to well over a billion today and, even under this relatively favorable outlook, continuing to expand to over 2.3 billion by 2100. The U.N.’s more pessimistic end of the range (not shown) has a continuing rise in population, but at a slowing rate, to 11 billion and beyond. At that level the stresses on global food and on global law and order, especially in Africa, will almost certainly be too great and Ophuls’s prediction will likely be correct. The lower population track, in contrast, holds out a strong hope of survival – that is, of maintaining a reasonably stable global civilization and continuing to improve the quality of the average life. The return, therefore, to helping encourage a lower population everywhere is incredibly high. Yet little is done at an international level and indeed the issue is treated like a hot potato even by usually well-meaning NGOs. But we can do it, and my guess is that we will indeed succeed on this front. In the meantime it would be encouraging if economists, The Economist (not to pick on them but I tend to hold them to higher standards than others), and economic discussions in general would look out a few more years and stop discussing lower population growth as if it were a dire economic threat rather than our last best hope. Of course, as growth rates drop rapidly and populations quickly age, there is an added burden to workers of carrying more non-workers for one generation as the changes flow through the system. Then things stabilize again. This cycle can be ameliorated enormously by having older people extend their contributions and by facilitating the full participation of women in all countries. The ruinous alternative is to have an ever-growing population run off the cliff collectively. The economics industry has indeed done a particularly inadequate job on long-term sustainability in a world of finite resources. It is a good time for them to wake up to the problems we face on this front. Fortunately, individual decisions on fertility might well get the job done anyway, without any help from a potentially less blink-ered and longer-term economic theory.
可再生能源 这就引出了第二份非凡礼物,涉及一种我通常不认同的“富足论”乐观思潮:无限的人类智慧加上技术能解决所有问题。没错,正是这同一颗大脑带来了第二次世界大战、数千年的土壤侵蚀,以及无数帝国的崩塌。这种富足论论点一个明显的普遍缺陷在于,它忽视了我们对于廉价能源的巨大依赖。火车与煤炭、汽车与汽油、电力与空调和冰箱,它们依次推动了经济活动与幸福感(想想看,在悉尼那海滨海滨城市历史上最热的一天——1 月 18 日,气温高达 114.4°F,没有空调会是什么滋味!),但每一种都伴随着代价——能源使用量不断攀升,而其中几乎全部来自我们不可替代的石油和煤炭储备。然而如今,终于出现了一个伟大的技术飞跃,它第一次伴随着更少的能源消耗——太阳能、风能等技术,以及电网效率和储能技术的提升。
Renewable Energy This brings us to the second remarkable gift, which involves a branch of the “cornucopian” optimism that I usually deplore: that the infinite human brain combined with technology will solve all problems. Yes, this is the same brain that brought us World War II, several thousand years of soil erosion, and the collapse of endless empires. An obvious generic weakness in this cornucopian argument is that it ignores our massive dependence on cheap energy. Trains and coal, cars and gas, and electricity and air conditioners and refrigerators in turn drove forward economic activity and the feeling of well-being (try being in Sydney on January 18, at 114.4°F, the hottest day in that seaside city’s history, without air conditioning!), but each came with a cost – an increased wave of energy use, almost all of it from our irreplaceable stores of oil and coal. Yet now, finally, there is an example of a great technological leap that for the first time is accompanied by less energy use – the technologies of solar, wind power, and other alternatives as well as electric grid efficiencies and improved energy storage.
这一次,资本主义体系中最精华的部分——所有创新、企业创业和风险承担——竟然都朝着减少我们对可耗尽碳氢化合物使用的方向前进,因而也增加了我们在抵达悬崖边缘之前稳定文明的机会。图 6 以橙色线条展示了光伏发电成本真正显著的下降趋势。唯一能与之类比的是半导体价格按照摩尔定律下降的过程。这确实是一个令人欣慰的类比,因为半导体发展过程中那些看似物理性的局限一次又一次被突破。如果在未来几十年里,光伏发电效率及其价格所面临的物理局限能被同样巧妙地克服,那么光伏能源的价格将永远确保我们获得廉价且充足的能源。风能可能在阳光不那么充足的地区也至关重要,但那里的成本下降过程,很可能主要已是过去式。图 6 中以绿色线条显示了风能成本早期迅速下降的趋势,这主要得益于技术进步使风机尺寸得以增大,从而提升了效率。然而,在 2002 年至 2008 年期间——这两年里我一直在关注的那场资源成本大幅飙升中——建造风机塔筒所用的钢材、水泥和铝材(这些材料的制造过程都极其耗能)的价格全部上涨了 2 到 3 倍!只有平稳的人力成本和改进的涡轮机技术才使得风能成本在此期间仅上涨了 40%。我们的图表对未来的风能成本只设定了温和的降幅,因此即使到 2025 年,预估的风能成本仍然高于 2000 年——即 GMO 季度信《我们这一生的赛跑》——2013 年 4 月——在材料价格大幅飙升之前的水平。图 6 中剩余的部分是燃煤发电的成本。在预估未来时,我们设定了一个区间。下限代表煤炭价格每年温和上涨 1%,而上限则代表……图 6 可再生能源很快将具备竞争力按能源种类划分的总成本,及至 2030 年的预测单位:2010 年美元/兆瓦时 $1,600 太阳能 风能 煤炭 预测 $800 2010 美元/兆瓦时,对数刻度 $400$200$100$50$251980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030 来源:美国国家可再生能源实验室、Greentech Media、McNerney 等人、全球金融数据公司、彭博社、GMO 未来预测并非保证,仅反映截至作出预测之日的情况,GMO 无义务且不会更新此类预测。未来预测受制于诸多假设、风险和不确定性,这些因素会随时间变化。实际结果可能与预测结果存在重大差异。
For once, all of the innovations, corporate start-ups, and risk taking – the best part of the capitalist system – work to decrease our use of depleting hydrocarbons and therefore to increase our chance of stabilizing our civilization before the cliff edge is reached. Exhibit 6 shows in orange the truly remarkable decline in the cost of electricity from photo-voltaic cells. The only thing to compare it to is the Moore’s Law decline in the price of semiconductors. That would indeed be a happy comparison, for perceived physical limits to semiconductor progress have been overcome time and time again. If the physical limits on photovoltaic efficiency, and hence its price, are similarly maneuvered in future decades, then the price of photovoltaic energy would guarantee us cheap and plentiful energy forever. Wind power may also be vital in less sunny zones, but there the cost reductions are, probably, mainly behind us. Exhibit 6 shows in green the early rapid declines in the costs of wind power mainly as improved technology allowed for increases in size and therefore efficiency. However, during the great leap in resource costs between 2002 and 2008, which I have been obsessing about for the last two years, the price of steel, cement, and aluminum from which wind towers are built (and all of which are incredibly energy-intensive), all rose from two to three times! Only the flat cost of human labor and improved turbines allowed for wind costs to rise by only 40% during this period. Our exhibit allows for only modest reductions in future wind costs, so that even by 2025 wind costs are estimated to be still higher than 2000, before the GMO Quarterly Letter – The Race of Our Lives – April 2013 7 great surge in material prices. The remaining component of Exhibit 6 is the cost of coal-fired electricity. For future estimates we have made a range. The lower end represents a modest 1% a year increase in coal prices and the upper Exhibit 6 Renewable Energy Competitive Soon Total Cost of Energy by Source, and Projections to 2030 2010 US$ / MWh $1,600 Solar Wind Coal Projections $800 2010 $ / MWh, Log Scale $400 $200 $100 $50 $25 1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030 Source: National Renewable Energy Laboratory, Greentech Media, McNerney et al., Global Financial Data, Bloomberg, GMO Future projections are not a guarantee and speak only as of the date they are made, and GMO assumes no duty to and does not undertake to update such projections. Future projections are subject to numerous assumptions, risks, and uncertainties, which change over time. Actual results may differ materially from those anticipated in the projections provided.
每年下降 4%,这仍然略低于过去十年煤炭年均 5% 的价格涨幅。可以看出,到 2025 年至 2030 年,太阳能和风能很可能都比煤炭便宜。当然,所有这些比较都没有将煤炭的“外部性”计入成本——也就是煤炭行业施加给我们、由公众买单的那些危害:山顶被铲平、山间溪流被污染、酸雨以及损害健康的颗粒物。从长远来看,更严重的是燃烧煤炭释放的二氧化碳导致全球气温上升,带来日益增加的成本:农作物因气候不稳定而受损,以及更极端天气事件带来的成本上升。20 年后,随着煤炭价格上涨、替代能源价格下降,煤炭很可能成为发电领域的无望之选;但即便在今天,将外部性充分计入之后,它也是一个不经济的选项。任何今天考虑投资新建燃煤电厂的潜在投资者,都应该对“搁浅资产”提出一些尖锐的问题——这些成本无效的资产,在它们变得不具竞争力或非法之前,将没有足够时间获得正投资回报,因为替代能源成本在下降,而控制“外部性”的成本(污染和气候损害)——这些过去被转嫁为公共成本——将逐渐成为排放者的责任。
end 4% a year, which is still a little less than the 5% annual average price rise for coal of the last 10 years. As can be seen, by 2025 to 2030 both solar and wind power are likely to be cheaper than coal. All of these comparisons, of course, are made without charging coal for “externalities” – those ills that the coal industry inflicts that we the people have to pay for: mountain tops ripped off and mountain streams polluted, acid rain, and particulate matter damaging health. Even more serious in the long run, the CO2 that is released by burning coal imposes the increasing costs of ris-ing global temperatures: unstable weather for crops and rising costs of more extreme weather-related events. Coal is likely to be a hopeless choice for electricity generation in 20 years, as its price rises and those for alternatives fall, but fully costed for externalities it is an uneconomic choice today. Any potential investors today in a new coal-fired utility should ask some tough questions about “stranded assets” – cost-ineffective assets that will not have had the time to make a positive return on their investment before they will have become uncompetitive or illegal, caught between the falling costs of alternative energy and the rising costs of controlling for “externalities” – pollution and climate damage – that were once passed on as public costs but that will become steadily the responsibility of the emitter.
我们有时间、技术和资金,在 30 到 50 年内完全取代不可再生能源;平均而言,在这个时间段内,这种取代将是经济的(早期不太划算,但后期会显著划算)。在这个过程中,我们将越来越获得更低的边际成本,因为在这些比较中常常被遗忘的是,我们两大主要替代能源——太阳能和风能——的高成本组成部分是前期资本支出。一旦建成,单纯运营风电场和太阳能电场的边际成本远远低于挖掘和运输煤炭的边际成本,即便不考虑那些由公众承担的健康和环境成本。你应该知道,在计算替代能源项目成本时,企业会采用很高的折现率,这反映出这样一种观念:对企业来说,今天花 1 美元建设风电项目,需要在明年获得 1 美元加 10 甚至 14 美分的回报,或者在 18 年后获得约 8 美元的回报,才能弥补当前资金使用的损失,并跨越企业吸引投资的门槛收益率。替代能源投资所需的投资回报率(门槛收益率)通常高于传统企业投资,部分原因是这些项目仍然存在不必要的不可确定性:不稳定的政府政策、快速变化的技术导致大多数项目具有新特征,以及资本提供方普遍不熟悉。
We have the time, technology, and money to completely replace nonrenewable energy in 30 to 50 years and, on aver-age, in that time period such replacement will be economic (less so in the earlier years but by a wide margin later). As we do it, we will increasingly have much lower marginal costs, for what is often forgotten in these comparisons is that the high cost component in our two main alternatives, solar and wind, are up-front capital costs. Once constructed, the marginal costs of merely operating the wind and solar farms is far, far lower than the marginal costs of digging and shipping coal, even without those other health and environmental costs borne by the general public. You should be aware that when we calculate the costs of alternative energy projects, a high corporate discount rate is used to reflect the idea that to a corporation a dollar spent today to build a wind power project needs to be offset by a dollar and 10 GMO Quarterly Letter – The Race of Our Lives – April 2013 8 or even 14 cents next year, or $8 or so in 18 years, to pay for the current loss of the use of money and to jump over the corporation’s hurdle rate for attractive investments. The required investment return (hurdle rates) for alternative energy investments is often higher than for traditional corporate investments partly because of unnecessary uncertainties still surrounding these projects: erratic government policies, rapidly changing technologies resulting in most projects having new features, and general unfamiliarity to providers of capital.
但这些替代能源项目的社会效益又如何呢?过去 30 年,个人平均财富和收入每年仅增长 1% 到 3%,而不是 10% 或 14%!解决我们的长期能源问题,可能不仅是最关键的经济问题,而且正如我在这里所论证的,也是我们这个文明未来存续所需的两大关键投入之一。在一个理性的世界里,反映这种重要性的折现率显然应该远远低于企业对此类项目所需的 10% 或 14% 的回报率。在这种极端情况下,我可以论证零社会回报门槛的合理性,但让我们暂且接受一个低于平均水平的企业门槛收益率——比如说 5%。以 5% 的实际回报率(顺便提一下,过去所有企业资本的平均实际回报率为 7%)计算,这些风电和太阳能项目所对应的平准化能源成本(反映运营成本和资本成本的综合成本)将比采用更高企业折现率时低得多——最多可低 40%。在这种较低的资本成本下,典型的风电项目将拥有比典型燃煤电厂更低的“平准化成本”,并在 10 年内遥遥领先。太阳能发电场仍需要 10 年的成本下降进展(按照当前速度)才能赶上风电(尽管屋顶太阳能目前正在接近零售电价水平)。需要记住的关键点是,一旦找到资本并建成项目,风电场或太阳能电场提供的能源比燃煤电厂便宜得多,其边际成本仅为煤炭边际成本的三分之一左右(约每千瓦时 1 美分,而煤炭至少为 3 美分)。
But what of the social benefits of these alternative energy projects? Personal average wealth and income has been rising by only 1% to 3% a year for the last 30 years, not 10% or 14%! Solving our long-term energy problems may not only be the most critical economic problem, it may also, as I argue here, be one of two most critical inputs into our future viability as a civilization. A discount rate that would reflect this significance should obviously, in a reasonable world, be far less than the 10% or 14% return needed by a corporation for such projects. I could make a case for a zero social return hurdle in this extreme case, but let us merely settle for a lower-than-average corporate hurdle rate – say, 5%. At a 5% real return (which, by the way, compares to an average delivered 7% real return on all corporate capital in the past), these wind and solar projects would have a much lower levelized cost of energy (the cost that reflects both operating and capital costs) than they would have at higher corporate rates – up to 40% lower. At those lower capital costs typical wind power projects would have a lower “levelized cost” than a typical coal-fired plant and be far ahead in 10 years. Solar farms would still need 10 years at the current rate of progress in cost reductions to catch up with wind power (although roof-top solar is getting to retail rates as we speak). The point to remember is that once the capital is found and the project is built, a wind or solar farm delivers far cheaper energy than a coal-fired utility plant, at around one-third of the marginal cost of coal (about 1¢ per kilowatt hour at a minimum of 3¢ for coal).
普通商人脑海中留下的印象往往是过去五年信息的移动平均值。生活太忙碌,无法跟上所有事情,通常五年信息就已经足够新。但当情况在一两年内发生突然转变时,平均意见有时会被远远抛在后面,这正是太阳能和风能领域(程度稍轻)所发生的情况。英国《展望》杂志最新一期报道了一位能源专家的故事:他三年前在英国投资了补贴丰厚的家用太阳能电池板,因为这几乎保证获得 7.5% 的回报(免税,因为收益以降低账单的形式体现),对于低风险投资来说,这在当时和现在都远好于其他任何东西。你会想,最近补贴下降三分之二可能会终结这种游戏,但他指出,电池板的安装成本(经效率提升调整后)在短短两年多时间里也从普通家庭的 6000 英镑降至 2000 英镑,因此房主仍然能获得可观的回报。你可以想象,在没有补贴的情况下,在阳光充足的地区——比如说加州,其日照量几乎是伦敦的两倍——以这些新的更低价格获得可观回报是多么容易。(我在伦敦那完全灰暗的一个月里深受其苦。)另一方面,据彭博社报道,杜克电力公司表示,他们采购太阳能电池板的成本在两年内下降了 75%。这些转变确实极为显著,即便从目前开始只有稳步的进展,也足以实现目标。与此同时,在风能领域,澳大利亚最新的大型风电场被宣布其平准化成本低于近期新建的燃煤电厂。而这一切发生在一个自 2000 年以来煤炭价格翻倍、石油价格翻了四倍的世界里。这跟三年前完全是不同的游戏了。
The impressions the average businessman carries in his head tend to be a moving average of the last five years’ in-formation. Life is too busy to keep up with everything and usually five years is recent enough. But when there is a sudden shift in a year or two, average opinion is left sometimes far behind and that is exactly what has happened to solar energy and to a lesser extent to wind power. The current issue of Prospect magazine in England carries a story of an energy expert who invested three years ago in heavily subsidized home solar panels in the U.K. because doing so more or less guaranteed a 7.5% return (tax-free because the benefit comes in the form of lower bills), which for a low-risk investment was and is far better than anything else these days. You might suspect, the author argued, that the recent two-thirds drop in subsidies would end that game, but he points out that the installation costs of panels (adjusted for increased efficiency) have also dropped from £6,000 to £2,000 for a typical home in just over two years so that homeowners still receive a handsome return. You can just imagine how much easier it is to get a handsome return, without subsidy, at these new lower prices in areas where the sun actually shines – say, California, which receives almost twice the sun of London. (I’m stinging from a totally grey month in London.) At the other end of the spectrum, Duke Power was reported in Bloomberg as stating that the cost of solar panels to them had dropped by 75% in two years. These are truly remarkable shifts and now even modest steady progress from here will get the job done. Meanwhile in wind, the very latest large-scale wind farm in Australia was announced as having levelized costs lower than recent coal plants. All in a world where the cost of coal has doubled and oil quadrupled since 2000. This is not the same game that it was just three years ago.
储能 储能现在可以说是环境进步的圣杯。坏消息是过去的进展缓慢。好消息是,现在有数十个(如果不是数百个的话)研究团队正在致力于此。在风能和太阳能达到电力总产量相当大的比例之前,我认为储能方面取得一些实际成本进展(比如降低一半左右)的可能性极大,尤其是在零售层面,因为储能设备与汽车电池不同,只要便宜,它可以又重又大、效率相对较低。便宜将使家庭电力市场具备脱离电网的潜力。然而,必须承认的是,储能方面缺乏预期的进展可能会显著减缓替代能源的普及速度。因此,这是一个特别需要鼓励和好运的领域。
Energy Storage Energy storage is now the Holy Grail of environmental progress. The bad news is that progress in the past has been slow. The good news is that there are now scores, if not hundreds, of research teams working on this. Before wind and solar reach a large percentage of total electricity production, it is extremely likely in my opinion that some real cost progress will be made in storage (halving or so), especially at the retail level where a storage device, unlike a car battery, can be heavy, bulky, and relatively inefficient as long as it is cheap. Cheapness would deliver to the household electric market the potential for grid independence. However, let it be admitted that lack of expected progress in energy storage could materially slow down the rate at which alternative energy is adopted. It is therefore an area that particularly needs encouragement and good fortune.
智能电网 几十年来,对电网进行现代化改造以实现更广泛、更高效的输电,将大幅减少储能需求。接入家庭,利用电动汽车电池和冰箱的临时调节等(全部通过协议并给予折扣),也能缓解这个问题。作为备用,天然气发电是理想的技术,同时也许可以结合一些生物质和城市垃圾的利用。煤炭发电在美国如今根本没有必要,而全球最后一批燃煤电厂可能在 20 年内建成。
GMO Quarterly Letter – The Race of Our Lives – April 2013 9 Smart Grid Over several decades, modernizing the grid to allow much wider and more efficient transfer would dramatically reduce storage needs. Reaching into homes and using temporary electric car battery and refrigerator adjustments, etc., (all by agreement and for a discount) would also reduce the problem. As back-up, natural gas electric generation is the ideal technology with perhaps some use of bio mass and urban waste. Coal for electricity generation is just not necessary today in the U.S., and the last coal plants anywhere may be built in the next 20 years.
中国骑兵前来救援 在这个问题上,我对中国树立杰出榜样寄予厚望。中国资本过剩得令人尴尬,被指责将其 GDP 中高达 50% 的资本投资浪费在农田中央的地铁站、空城和多余的区域机场上。相比之下,我们资本短缺得令人尴尬,资本支出已降至 GDP 的 16%,公众持有的联邦债务已累积至 GDP 的 70% 以上,并且目前每年以 GDP 的 6% 的速度增长。中国可以通过管理一个庞大的替代能源计划,包括有史以来最智能的国家电网、对储能以及包括聚变在内的所有可再生能源的广泛研究,来平滑其从 50% 的资本支出在未来 20 年左右下降到更合理的 35% 这一可能危险的过渡期。(与美国一样,来自页岩气的天然气将有助于过渡。)这样一项大规模、广泛的计划可能会让中国在未来最重要的行业中获得全球主导地位,并解除其最大的单一担忧:能源安全。它还将解除必然成为其最大社会困扰的问题:主要城市令人难以置信的空气污染,这已经使这些城市的预期寿命减少了数年,并大幅增加了医疗成本。对中国来说,最好的一点是,这将使其成为全球贸易中的低成本能源玩家,如果这一点再加上其较低的劳动力成本、不断提升的教育水平、迅速改善的基础设施和资本深化,还不能让美国资本家感到恐惧的话,那它就该恐惧了。
Chinese Cavalry to the Rescue On this topic, I have high hopes of China setting a brilliant example. They are embarrassingly long capital, accused of wasting much of their 50% of GDP capital investments on subway stops in the middle of farm fields, empty cities, and redundant regional airports. We, in contrast, are embarrassingly short capital, with capital spending having fallen to 16% of GDP and federal debt owed to the public having accumulated to over 70% of GDP and currently increasing at 6% of GDP per year. China could smooth out their potentially dangerous transition from 50% capital spending to a more reasonable 35% over the next 20 years or so by managing a giant program of alternative energy, including the smartest-yet national grid and broad-based research into storage, and all sources of renewable energy, including fusion. (As with the U.S., natural gas from fracking would help in the transition.) Such a massive broad-based program would potentially give them global dominance in the most important industries of the future and would relieve them of their greatest single worry: energy security. It would also relieve them of what will surely become their greatest societal irritant: the incredible air pollution of their major cities, which must already be reducing life expectancy in those cities by several years, as well as substantially increasing health costs. Best of all for them, it would leave them as the low-cost energy player in global trade, and if that, added to their lower labor costs, rising educational standards, rapidly improving infrastructure, and capital deepening, does not put the fear of God into U.S. capitalists, then it should.
如果中国宣布一项为期 25 年(这些微不足道的五年计划够多了!)、体现曼哈顿项目级别决心的替代能源计划,那对发达世界,尤其是美国来说,将是一种因祸得福。只要看他们执行这个计划几年,我们就会估算出竞争后果,并被迫防御性地效仿他们。我们肯定会发现,我们其实依然富有,能够负担得起长期回报的有价值项目,而我们所感知的贫困更多关乎领导力和认知,而非现实。毕竟,美国比以往任何时候都更富有,仍然是世界上最富有的大国。我此前已部分提出过这个观点。我之所以重复,是因为:a)这非常重要;b)中国政府莫名其妙地未能采纳我的主意。他们若采纳,这简直是十拿九稳的事。(亲爱的中文译者,“lay-up”意为“一个容易实现的目标”。)在一个缺乏美国在能源可持续性方面领导力的世界里,一个真正重大的中国努力可能成为全球集体成败的分水岭。在这种情况下,将是中国的骑兵在悬崖边缘拦住我们,但任何能得到的骑兵我都欢迎。
It would be a blessing in disguise for the developed world and the U.S. in particular if China announced a 25-year program of alternative energy (enough of these paltry five-year plans!) that embodied a Manhattan project level of commitment. Within just a handful of years of watching them execute this program, we would calculate the competitive consequences and would be forced defensively to emulate them. We would surely discover that we are in fact still wealthy and can afford worthy projects with long-term payoffs and that our perceived poverty is more about leadership and perceptions than it is about reality. The U.S. is, after all, richer than it has ever been and is still the richest large country in the world. I have made a part of this point before. I am repeating it because: a) it’s very important; and b) the Chinese government has inexplicably failed to snatch up my idea. It would be a lay-up for them if they did. (Dear Chinese translator, a “lay-up” means “an easily achievable goal.”) In a world lacking U.S. leadership in energy sustainability, a truly major Chinese effort might be the difference between collective global success and failure. In this case it would be the Chinese cavalry heading us off at the cliff edge, but I’ll take any cavalry we can get.
(附言:最近,中国几个主要城市记录到了灾难性的污染水平。在 30 是勉强安全上限的指标上,它们多次超过 300。中国政府几乎立即做出了回应,这不算坏主意,因为每年重复出现的危险污染很快会确保一些聪明但挑剔的人搬离这些最糟糕的城市。难道你不会吗?他们将当前(按美国标准已非常激进)的太阳能发电装机目标在短短三年内提高了 65%!按任何标准衡量都令人震惊,目前在境外政治上不可能实现。这一新目标意味着,他们将拥有相当于七座左右大型燃煤电厂太阳能发电能力,这个绝对数字在世界任何地方都很大,唯独在中国,仍被燃煤电厂盖过。但这算是一笔首付。)
(Postscript: recently, several leading Chinese cities recorded disastrous levels of pollution. On a scale where 30 is the barely safe limit, they hit over 300 several times. The Chinese government responded almost immediately, which was not a bad idea, because yearly reoccurrences of dangerous pollution will pretty soon guarantee that some smart but critical people will move out of these worst cities. Wouldn’t you? They upped their current target [already very aggressive by U.S. standards] for installed solar generation capability in just three years by 65%! Astonishing by any standard and currently politically impossible outside China. This new target means that they will have the equivalent in solar power of seven4 or so giant coal-fired plants, a very large absolute number anywhere except in China, where it is still dwarfed by coal plants. But, it is a down payment.)
4 在总发电量上相当于七座左右燃煤电厂,但按价值计算更像 10 座或更多,因为太阳恰好在高价值峰值需求时照耀。
4 It is equivalent to seven or so coal plants in total electricity production, but in value terms it is more like 10 or more because the sun shines precisely at the time when high-value peak demand occurs.
GMO 季报——《我们一生的竞赛》——2013 年 4 月 10 页 尾声 上述两个有利因素,若加上运气和一些改善的努力与领导力,或许能为我们争取足够时间,彻底调整我们的农业系统,因为改变态度、建设基础设施、培训和研究以实现完全农业可持续性需要几十年。这反过来又让我们在稳定环境中争取时间,去解决无疑耗时最久的问题:应对我们日益枯竭的金属供应。是的,我们庆幸拥有大量的铝和铁矿石储量,尽管像农业和文明本身一样,它们对我们的用处完全依赖于廉价能源的可获得性。更切题的是,本世纪大多数其他金属——其中一些非常有用——的可负担供应将告急,必须由有机替代品取代,这一过程将需要所有时间与研究,而其他因素的成功或许能为此提供保障。
GMO Quarterly Letter – The Race of Our Lives – April 2013 10 Epilogue The two favorable factors described, with luck and some improved effort and leadership, may buy us enough time to completely retune our agricultural system, for it will take many decades to change attitudes and build the infrastructure, training, and research to move to complete agricultural sustainability. That in turn would allow us time in a stable environment to address the problem that will no doubt take the longest time of all: addressing our failing supplies of metals. Yes, we are blessed with large supplies of aluminum and iron ore, although, like agriculture and civilization itself, their usefulness to us is completely dependent on the availability of cheap energy. More to the present point, affordable supplies of most other metals, some very useful, will run low this century and must be replaced by organic alternatives, which process will need all the time and research that success with the other factors might be able to deliver.
悬在这场破坏力量与再生力量之间激烈竞赛之上的,是气温上升、海平面缓慢上升、海洋酸化,以及最重要的,农业天气不稳定的变数。即使骑兵及时赶到,阻止主要灾难——文明的全面崩溃,随着全球气温持续上升,环境和生物多样性仍将遭受且肯定将继续遭受严重损害。但随着行为改善,我们很可能会争取足够时间来拯救我们自身物种和我们最珍视的大部分东西。在我看来,这一组合中的所有其他因素都相当程度上可被数据和分析所把握。气候问题令人恐惧的部分在于,其性质决定了无法精确判断程度或时间,因此(如我之前所提),科学家出于避免被指夸大的愿望,最终会系统性低估局势。
Suspended over this close horserace between destructive and regenerative forces are the wild cards of rising temperatures, slowly rising sea levels, ocean acidification, and, above all, destabilized weather for farming. Even if the cavalry arrives in time to prevent the main disaster – a rolling collapse of much of civilization – much damage is being done and will definitely continue to be done to the environment and biodiversity as global temperatures continue to rise. But with improved behavior, we may well buy enough time to save our own species and most of what we really value. In my opinion, all of the other factors in this mix are reasonably susceptible to data and analysis. The scary part of the climate issue is that by its nature there can be no precision on extent or timing and, consequently (as I have mentioned before), scientists, in their desire to avoid being seen to exaggerate, end up systematically underestimating the case.
例如,1 月 23 日的《纽约时报》科学版有一篇关于海平面上升的文章,文章称作者们——全都是科学家——“形成了共识,认为本世纪海平面上升幅度可能在 3 英尺左右,或许高达 6 英尺”,这将迫使数百万人撤离。“但许多科学家,”他们补充道,“被一种挥之不去的恐惧所困扰……即他们的计算最终会被证明过于保守,而社会稳定终将受到威胁。”该项目负责人雷莫博士 5 被引述说:“在每一个知识增长的节点上,我们都发现气候系统比我们预想的更敏感,而不是更不敏感。”[强调为原文所有。] 或许有点苛刻地说,统计学家可能会建议,在连续低估之后,预期应当做出调整。
The January 23 New York Times science section, for example, had an article on rising sea levels that said that the authors – scientists all – “share an emerging consensus that the increase in ocean level in this century will probably be on the order of three feet, perhaps as much as six feet,” requiring many millions to evacuate. “But many scientists,” they add “are plagued by a nagging fear… that their calculations will turn out to have been too conservative, and social stability will eventually be threatened.” “At every point as our knowledge increases,” Dr. Raymo,5 the leader of the project, is quoted as saying, “we’ve always discovered that the climate system is more sensitive than we thought it could be, not less.” [Emphasis added.] To be perhaps a little cruel, a statistician might suggest that after serial underestimations, expectations might be adjusted.
5 莫林·雷莫博士在哥伦比亚大学拉蒙特-多尔蒂地球观测站工作。
The bottom line is that if we put our minds to it we can overcome normal inertia and abnormally powerful vested interests that oppose necessary change. Our population is likely to start declining in a few decades, slowly but surely, and the fertility rate of 1.8% or less would allow global population to fall back more or less gracefully by 2200 to a probably sustainable level of 4 billion, particularly if we sensibly encourage its decline. Important progress in alternatives is certain. Other scientific progress, especially in computing power will also help. Whether we can move fast enough on these fronts and at the same time reduce the output of greenhouse gases to avoid going off the cliff is simply not knowable for certain, but every minute saved and improvement made, betters our odds. Let the race begin.
底线是,如果我们下定决心,我们可以克服通常的惯性和异常强大的、反对必要变革的既得利益。我们的人口很可能在未来几十年开始缓慢但确定地下降,而 1.8% 或更低的生育率将使全球人口到 2200 年或多或少优雅地回落到一个可能可持续的 40 亿水平,特别是如果我们明智地鼓励其下降。替代能源方面的重要进展是确定的。其他科学进步,尤其是在计算能力方面,也将有所帮助。我们是否能在这些方面足够快地推进,同时减少温室气体排放以避免坠崖,这根本无法确切知晓,但每节省一分钟、每取得一项改进,都能增加我们的胜算。让竞赛开始吧。
Dr. Maureen Raymo works at the Lamont-Doherty Earth Observatory at Columbia University.
GMO 季报——《我们一生的竞赛》——2013 年 4 月 11 页 更正:天然气预测 我看涨天然气的长期价格,并在个人账户中持有期限数年的期货多头头寸。在五年期合约上,隐含价格为每千立方英尺 4.50 美元。然而,在我最近一次演讲的问答环节中,我被引述为说五年内价格“将翻三倍”。这暗示当时价格为 12 美元。这要么是引述错误,要么是口误。我本意想表达且之前说过的是,从去年的低点算起,价格在五年内可能会翻三倍:即达到每千立方英尺约 6 到 7 美元,远高于当时的隐含价格 4.50 美元,但远低于引述中的数字。
GMO Quarterly Letter – The Race of Our Lives – April 2013 11 Correction: Natural Gas Forecast I am bullish about the longer-term price of natural gas and in my personal account I am long the futures several years out. At five years out, the implied price is $4.50 mcf. However, in the Q&A section of a talk I gave recently I was quoted as saying that in five years the price “would have tripled.” This implies a price, then, of $12. This is either a misquote or a misspeak. What I intended to say and have said before was that from the low last year the price would be likely to triple in 5 years: that is to about $6 or $7 mcf, far above the assumed $4.50 then, but far below the number in the quote.
免责声明:所表达的观点是杰里米·格兰瑟姆截至 2013 年 4 月 26 日的观点,并且可能随时根据市场和其他条件发生变化。本文不是购买或出售任何证券的要约或招揽,也不应被解释为此类。提及特定证券和发行者仅供说明之用,并非旨在也不应被解释为购买或出售此类证券的建议。
Disclaimer: The views expressed are the views of Jeremy Grantham through the period ending April 26, 2013, and are subject to change at any time based on market and other conditions. This is not an offer or solicitation for the purchase or sale of any security and should not be construed as such. References to specific securities and issuers are for illustrative purposes only and are not intended to be, and should not be interpreted as, recommendations to purchase or sell such securities.
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GMO 季报——《我们一生的竞赛》——2013 年 4 月 12 页 GMO 季报 2013 年 4 月 走向均衡路上的一件趣事 本·因克 GMO 投资哲学的基石是均值回归。我们相信,资本主义应使资本回报与资本成本一致,并且承担类似风险的资产应提供类似的长期回报。这些信念反过来引导我们假设:股票应以重置成本交易;股票的长期回报应大致等于其正常化盈利收益率;并且没有长期回报历史的资产,应具有与具有更长期历史的相关资产相似的估值和均衡回报。
GMO Quarterly Letter – The Race of Our Lives – April 2013 12 GMO QUARTERLY LETTER April 2013 A Funny Thing Happened on the Way to Equilibrium Ben Inker T he bedrock of GMO’s investment philosophy is reversion to the mean. We believe that capitalism should cause the return on capital to be in line with the cost of capital, and that assets that embody similar risks should offer similar long-term returns. These beliefs, in turn, guide our assumptions that equities should trade at replacement cost, that the long-term return to equities should be approximately the same as their normalized earnings yield, and that assets without long return histories should have similar valuations and equilibrium returns as related assets with longer histories.
这些信念使我们即使在估值和回报表现我们认为非理性的时候(例如 1990 年代末或 2006-07 年),也能相对安心地入睡。它们也使我们能够涉足新兴市场股票和债券、房地产投资信托基金、通胀保值债券等资产类别,即使我们缺乏大量历史数据来确认这些资产类别表面上是否便宜。
These beliefs have allowed us to sleep reasonably easy even at times, such as the late 1990s or 2006-7, when valuations and returns were doing things we thought were irrational. And they have also allowed us to take the leap into assets such as emerging equity and debt, REITs, and TIPS even when we did not have a lot of historical data to confirm the apparent cheapness of those asset classes.
但我们的睡眠并非总是完全安稳。有时市场似乎没有按剧本走,我们会困惑于我们面对的是暂时异常,还是更持久的问题。今天我们面临其中一个问题:美国企业利润率持续高企。高利润率不应存在于一个均值回归的世界中,然而过去 20 年的大部分时间里,美国盈利能力一直高于长期平均水平,奇怪的是,这几乎与美国市场高于重置成本交易的时间长度相同。
But our sleep is not always altogether easy. There are times when the markets do not seem to be following the script properly, and we are left wondering whether we are dealing with a temporary anomaly or a more permanent problem. Today we are faced with one of these problems: the persistently high profit margins of U.S. corporations. High profit margins should not persist in a mean-reverting world, and yet profitability in the U.S. has been higher than long-term averages for most of the last 20 years, oddly pretty close to the same length of time that the U.S. market has been trading above replacement cost.
乍一想,高盈利能力与高股价市场有关联似乎并不那么奇怪——毕竟,投资者难道不应该更愿意为获得高回报的资产支付更高价格吗?但高估值意味着低股权资本成本,这应鼓励企业发行更多股票,而高资本回报应鼓励企业进行更多投资。这些压力应逐渐推高资本成本并压低资本回报。然而自 1990 年代中期以来,股票发行量下降,企业投资也下降,明显违背了资本主义的基本规则。如果高资本回报与高资本成本同时发生——即市场低于重置成本交易——那是有道理的,因为没有套利空间。当前这种情况本不应发生,这让我们难以准确理解它何时会结束。
At first thought, it may not seem that odd that high profitability is associated with an expensive stock market – after all, shouldn’t investors be willing to pay more for assets that achieve a high return? But high valuations imply a low cost of equity capital, which should encourage corporations to issue more equity, and a high return on capital should encourage corporations to do more investing. These pressures should gradually push the cost of capital up and the return on capital down. But in the period since the mid-1990s, stock issuance has been down and corporate investment has fallen as well, in apparent contravention of the basic rules of capitalism. A high return on capital that occurred simultaneously with a high cost of capital – that is a market selling below replacement cost – would make sense because there is no discrepancy to arbitrage. The current situation is not supposed to happen, which makes it tricky for us to understand exactly when it will end.
作为投资者,我们相信为客户的首要任务是尽力避免让他们亏钱。因此,我们在预测中选择了保守路径,假设盈利能力会回归均值。我们完全有可能错了,而且这样做对美国股市(以及全球大多数其他股市,它们也显示出高企的利润率)是一种伤害,但假设一个非均衡状态会无限期持续下去——即便它已经持续了令人惊讶的长时间——似乎并不审慎。赫伯特·斯坦定律指出:“如果某件事不可能永远持续,那它就会停止。”历史一直对斯坦定律颇为友善,但或许还应该有一条相关的告诫:“如果一件不可能永远持续的事情已经持续了令人费解的长时间,那就试着去理解它为何能持续这么久,以及你的模型本身是否有问题。”我承认这句话远不如斯坦定律那么精炼,但本文的其余部分将试图沿着这条告诫指引的方向展开探讨。对于那些不想阅读繁琐细节的人,结论是:存在一些让利润无限期维持在高位的途径,但社会是否愿意忍受这些途径,远非显而易见。
As investors, we believe that our first job for our clients is to try to avoid losing them money. Therefore, we have chosen the path of conservatism in our forecasts, assuming that profitability will revert. It is always possible we are wrong and we are doing a disservice to the U.S. stock market (and most other stock markets around the world, which also show elevated profit margins), but it does not seem prudent to assume a non-equilibrium situation will persist indefinitely, even if it has gone on for a surprising length of time. Herb Stein’s Law states “If something cannot go on GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 13 forever, it will stop.” History has been kind to Stein’s Law, but there should probably also be a related admonition: “If something that cannot go on forever has been going on for an inexplicable length of time, try to understand why it has been going on so long and whether your model might be the problem.” I admit it is nowhere near as pithy as Stein’s Law, but the rest of this paper will be an attempt to follow that admonition where it leads us. For those who don’t want to read through the gory details, the result is that there are ways for profits to stay high indefinitely, but it is far from obvious that society will be willing to put up with them.
当前状况
我不希望给人留下错误印象,以为当今的盈利能力从根本上无法解释。以当前经济状况来看,如今的盈利能力完全说得通。正如我的同事詹姆斯·蒙蒂尔在他的论文《涨上去终会跌下来》中指出的,我们可以用卡莱茨基方程从宏观经济学角度理解盈利水平。与我们对资本主义体系均衡的认知不同,卡莱茨基方程作为经济恒等式在任何时候都成立。对于那些没有把詹姆斯的文章烂熟于心的人,该方程表述为:利润 = 投资 + 股息 - 居民储蓄 - 政府储蓄 - 国外储蓄。从历史来看,利润涨落的主要驱动力一直是投资的起伏,如图表 1 所示。
The Current Situation I do not want to give the false impression that today’s profitability is fundamentally inexplicable. Today’s profitability makes perfect sense in light of the current conditions in the economy. As my colleague James Montier pointed out in his paper “What Goes Up Must Come Down,” we can use the Kalecki equation to understand the level of profitability from a macroeconomic perspective. Unlike our beliefs about equilibrium in a capitalist system, the Kalecki equation holds at all times, being an economic identity. The equation, for anyone who has not committed James’s piece to memory, states: Profits = Investment + Dividends -Household Savings -Government Savings -Foreign Savings Historically, the major driver of the ebb and flow of profits has been the ebb and flow of investment, as we can see in Exhibit 1.
图表 1 利润与投资(1929-1986 年) 20% 10% 相关系数 = 0.75 15% 8% 投资占 GDP 百分比 利润占 GDP 百分比 10% 6% 5% 4% 0% 2% -5% 0% -10% -2% 1929 年 3 月 33 37 41 45 49 53 57 61 65 69 73 77 81 85 数据来源:美国经济分析局、美联储、GMO 《通往均衡路上的一件趣事》– 2013 年 4 月 14 页 直到 1987 年,投资与利润之间的关系都非常紧密,相关系数高达 0.75。然而,近年来情况发生了变化,如图表 2 所示。
Exhibit 1 Profits and Investment 1929-1986 20% 10% Correlation = 0.75 15% 8% Investment as Percent of GDP Profits as Percent of GDP 10% 6% 5% 4% 0% 2% -5% 0% -10% -2% Mar- 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 Source: Bureau of Economic Analysis, Federal Reserve GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 14 Up until 1987, this was a very tight relationship, with a correlation of 0.75 between investment and profits. However, in recent years, the situation has changed, as we can see in Exhibit 2.
附录 2:利润与投资(1929–2012)
20% | 12%
10% | 15%
8% | 投资占 GDP 比重 | 利润占 GDP 比重
10% | 6%
5% | 4%
2% | 0%
0% | -5%
相关系数:1987–1999 | 1987– | 2000–0.75 | 1999 | 2012
-2% | 0.43 | -0.48 | -10% | -4%
3 月 | 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09
来源:经济分析局、美联储
从 1987 年到 1999 年,我们看到两个序列之间的相关性明显恶化,而 2000 年以来,这一关系变得完全反常,相关系数为 -0.48。既然卡莱茨基方程表明,在其他条件不变的情况下,较低的投资应当导致较低的盈利能力,那么,其他条件一定发生了变化。事实也确实如此——2000 年以来,几乎没有几个条件保持不变。
Exhibit 2 Profits and Investment 1929-2012 20% 12% 10% 15% 8% Investment as Percent of GDP Profits as Percent of GDP 10% 6% 5% 4% 2% 0% 0% -5% Correlations: 1987-1999 1987- 2000-0.75 1999 2012 -2% 0.43 -0.48 -10% -4% Mar- 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09 Source: Bureau of Economic Analysis, Federal Reserve From 1987-99, we saw a marked deterioration in the correlation between the two series, and since 2000 the relationship has been positively perverse, with a correlation of -0.48. As the Kalecki equation states that, all else equal, lower investment should lead to lower profitability, it must be the case that all else has not been equal. And sure enough, very few things have been equal since 2000.
在 1990 年代,与互联网泡沫相关的投资确实带来了高盈利能力——或许我们可以原谅这种关联没有更加强劲,因为导致 20 世纪最后几年利润下降的主要因素,是由于将科技公司的股票期权作为财富转移给某些幸运员工而造成的利润损失。从国民收入账户的角度看,员工行使期权所获得的资金被计入企业成本。这种会计处理很容易让人理解,因为交易中的损失方是最终将数十亿美元拱手让给期权持有者的股东。但得益于科技公司强大的游说能力,即使到今天,股票期权在通用会计准则(GAAP)下仍然没有被适当计为费用,除非是在脚注中体现。
In the 1990s, the investment associated with the internet bubble did indeed lead to high profitability – and perhaps we can forgive the relationship for not being even stronger than it was because the major factor driving down profits in the last few years of the 20th century was the lost profits associated with the extraordinary wealth transfer to some lucky workers in the form of stock options on technology companies. From a national income account perspective, the money that employees received from the exercise of their options is counted as a cost to corporations. It’s easy to have sympathy for this accounting, as the losers in the exchange were shareholders who wound up giving away untold billions to the option holders. But thanks to the power of the technology companies’ lobbying efforts, stock options are not properly expensed under GAAP accounting even today, except in a footnote.
自 2000 年以来,投资已降至大萧条时期之外我们从未见过的低水平,然而利润率却升至历史峰值。之所以能做到这一点,是因为卡莱茨基方程中的其他变量以我们前所未见的方式发挥了作用。图表 3 显示了家庭与政府储蓄总额占 GDP 的比重。
Since 2000, investment has fallen off to levels lower than we have ever seen apart from the Great Depression, and yet profitability has risen to an all-time peak. This has been possible because other pieces from the Kalecki equation have kicked in in a way we haven’t seen before. Exhibit 3 shows the sum of household and government savings as a percent of GDP.
GMO 在通往均衡的路上发生了一件有趣的事 – 2013 年 4 月 15 图表 3 家庭加政府部门储蓄
15%
储蓄占 GDP 百分比
10%
5%
0%
-5%
相关系数:1987-1999 1987-1999 2000– -10% 0.75 0.43 2012 -0.48
-15%
3- 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09
来源:美联储 截至 2012 年 12 月 31 日
除了大萧条和第二次世界大战后期,家庭和政府部门合计储蓄率一直占 GDP 的 3%-7%。从 2001 年到 2007 年,该总额在零附近徘徊,而自金融危机以来,我们在 -5% 左右上下波动。这意味着,与过去 60 年的美国历史相比,家庭和政府的储蓄使得企业利润占 GDP 的比例比正常情况下高出约 10%。由于企业利润大约占 GDP 的 10%,可以说,自金融危机以来,这一轮挥霍浪潮几乎完全解释了企业利润的成因。
GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 15 Exhibit 3 Household plus Government Savings 15% 10% Savings as Percent of GDP 5% 0% -5% Correlations: 1987-1999 1987-1999 2000--10% 0.75 0.43 2012 -0.48 -15% Mar- 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09 Source: Federal Reserve As of 12/31/12 Apart from the Great Depression and the latter part of World War II, the combination of the household and government sectors has saved around 3-7% of GDP. From 2001 to 2007, the sum hovered around zero, and since the financial crisis, we have been bouncing around somewhere near -5%. This means that relative to the last 60 years of U.S. history, household and government savings are responsible for profits being about 10% of GDP higher than they would otherwise be. As profits are approximately 10% of GDP, one could say that this burst of profligacy has been responsible for more or less all of corporate profitability since the financial crisis.
我们可以把这一点归为斯坦因定律(Stein's Law)的极好例证——利润率之所以高,是因为储蓄率低得不可持续,储蓄率最终必须回升,因此利润最终也会下降——不过有两个问题例外。第一个问题是,自 1990 年代中期以来,利润率普遍一直很高,远在储蓄率转为负值之前就已如此。第二个问题是,不能保证其他条件都不变。也许卡莱茨基方程(Kalecki equation)中的其他部分会帮助维持高利润。
We could chalk this up as a fine example of Stein’s Law – profit margins are high because savings rates are unsustainably low, savings rates must eventually come up, and therefore profits will eventually come down – except for two problems. The first is that profit margins have generally been high since the mid-1990s, long before savings went negative. And the second is that there is no guarantee that all else will be equal. Perhaps other pieces of the Kalecki equation will help keep profits high.
系统失衡回到我论文开头提到的均衡论点,从利润最大化资本家的视角来看,这段时期的怪异之处在于:我们经历了一段长时间的高资本回报率和低资本成本,却没有出现预期的股权发行增加和企业投资增加的反应。图表 4 显示了美国股市相对于重置成本的长期价格走势。
Dis-equilibrium in the System Returning to the equilibrium arguments I started the paper with, the odd thing about this period from the perspective of a profit maximizing capitalist is that we’ve had an extended period of time with a high return on capital and a low cost of capital without having the expected response of increased equity issuance and increased corporate investment. Exhibit 4 shows the price to replacement cost of the U.S. stock market over time.
GMO 《走向均衡途中趣事一桩》——2013 年 4 月 图 4 托宾 Q 值 1.2 1.0 0.8 托宾 Q 值的对数与其均值的对比 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 1952 年 3 月 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 00 02 04 06 08 10 12 来源:美联储、Smithers & Co. 截至 2012 年 12 月 31 日 除了从 2008 年底到 2009 年初的大约 5 个月时间外,我们已经连续 20 年交易在长期均值之上。这本来应该是发行股票的诱因,但从整体上看,这一现象绝对没有出现,如图 5 所示。
GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 16 Exhibit 4 Tobin's Q 1.2 1.0 0.8 Log of Tobin's Q vs. Its Average 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 Mar- 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 00 02 04 06 08 10 12 Source: Federal Reserve, Smithers & Co. As of 12/31/12 Apart from about 5 months from late 2008 to early 2009, we have traded above the long-term average continually for 20 years. This should have been an inducement to issue stock, but this has definitely not shown up on an aggregate basis, as we can see in Exhibit 5.
图表 5:美股发行量占市值百分比 2% 1% 净额(剔除 LBO) 0% -1% -2% -3% -4% LBO 热潮 -5% -6% 1952 年 12 月 56 60 64 68 72 76 80 84 88 92 96 00 04 08 12 来源:美联储、Factset 截至 2012 年 12 月 31 日 GMO 《通往均衡路上的一件趣事 – 2013 年 4 月》 第 17 页
自 20 世纪 80 年代中期以来,有一个因素让局面变得混乱,那就是杠杆收购(LBO),它被算作股票回购。原则上,这最终应该会拉平,因为私募股权公司的目标是将收购的公司重新卖回公开市场——要么通过 IPO,要么卖给另一家上市公司。实际情况是,随着时间的推移,私募股权公司的资产组合规模急剧膨胀,因此我们从公开市场拿走的公司比放回去的更多。我们手头没有 1995 年之前 LBO 的可靠数据,但自那以后,我们展示了剔除 LBO 活动后的序列,基本模式依然没变。自 20 世纪 90 年代中期以来的这段时间,本应呈现一轮漫长的发行潮,反而出现了我们从未见过的最长净回购周期。
Exhibit 5 U.S. Stock Issuance as Percent of Market Cap 2% 1% NetofLBOs 0% -1% -2% -3% -4% LBOBooms -5% -6% Dec- 52 56 60 64 68 72 76 80 84 88 92 96 00 04 08 12 Source: Federal Reserve, Factset As of 12/31/12 GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 17 One factor that has confused the situation since the mid-1980s is the existence of LBOs, which count as stock buybacks. In principle, this should even out in the end because the goal of private equity firms is to eventually sell the companies they buy back into the public markets, either through an IPO or selling to another public company. As it happens, the size of the portfolios of private equity firms has ballooned over time, so we have net had more companies taken out of the public markets than put back. We don’t have good data on LBOs before 1995, but we’ve also shown the series net of LBO activity since then, and the basic pattern persists. The period since the mid-1990s, which seems like it should have shown a long wave of issuance, has instead shown the longest period of net buybacks we have ever seen.
我们一直在谈论美国投资的下降趋势,但值得再次展示图表 6,这次不叠加利润曲线。
We have talked about the investment fall-off in the U.S., but it’s worth showing again, without the profit series superimposed, in Exhibit 6.
表 6 美国投资
20%
15%
投资占 GDP 比重
10%
5%
趋势?
Exhibit 6 U.S. Investment 20% 15% Investment as Percent of GDP 10% 5% Trend?
0% -5% -10% 3 月 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09 来源:美联储 截至 2012 年 9 月 30 日 投资的回落其实是从金融危机才开始的。在此之前,整体投资看起来还算正常。诚然,它确实没有真正超越 50 年代、60 年代或 70 年代的水平。但另一方面,该序列自 60 年代以来似乎确实呈现下降趋势,这使得 90 年代和 2000 年代的“正常”水平降至 GDP 的 5%-6% 左右,而二战刚结束那段时间则为 8%-10%。与这一可能的趋势相比,我们确实看到过几轮投资激增,与互联网和房地产繁荣期重合,但当前时期确实是个异常值。公司赚得盆满钵满——利润刚刚创下相对于 GDP 的历史新高——但投资却比大萧条以来的任何时期都少。
0% -5% -10% Mar- 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09 Source: Federal Reserve As of 9/30/12 The fall-off in investment has really been just since the financial crisis. Before that, overall investment looked about normal. Admittedly, it did not really push above the levels of the 50s, 60s, or 70s. On the other hand, it does look as if the series has had a declining trend since the 1960s, which would have put “normal” for the 1990s and 2000s at around 5-6% of GDP, down from 8-10% in the immediate post-WWII period. Relative to that possible trend, we did see a couple of bursts of investment that coincided with the internet and housing booms, but the current period is truly an anomaly. Corporations are making plenty of money – profits are just off their all-time high relative to GDP – but investing less than at any point since the Great Depression.
这就好像公司把当下的盈利能力视为意外横财,而非永久状态。把利润看作意外横财当然并非不理性,但对于那些已经在高盈利环境中生活了近二十年的公司来说,如此谨慎实属令人惊讶。史密瑟斯公司的安德鲁·史密瑟斯认为,美国公司不愿投资是“奖金文化”的一种症状——那些意识到自己任期可能并不很长的首席执行官,会把精力集中在短期内能拉高股价的活动上,以便自己快速致富,而忽视长期,因为长期在他们任期内不太可能到来。他的观点或许没错,但投资下滑发生在奖金、股票期权和快速更替的 CEO 兴起之后,因此即使今天“奖金文化”是原因,那也不意味着投资率会永远保持在低位。
It is as if corporations view their current profitability as a windfall rather than a permanent condition. Viewing the profits as a windfall certainly isn’t irrational, but it is surprising for corporations that have been living in a world of high profitability for close to two decades to be so cautious. Andrew Smithers of Smithers & Co. has argued that U.S. corporations’ unwillingness to invest is a symptom of the “bonus culture” in which CEOs who realize their tenure may not be all that long focus their attention on activities that can bring stock prices up in the short term so they can get rich quickly, and ignore the long run as it is unlikely to come about on their watch. He may well be right, but the fall-off in investment has occurred more recently than the rise of bonuses, stock options, and revolving-door CEOs, so even if “bonus culture” is the answer today, that doesn’t mean investment rates will remain low indefinitely.
GMO:走向均衡路上的趣事——2013 年 4 月 18 如果投资从现在开始上升,我们从卡莱茨基方程中知道,短期内会对利润产生正面影响,尽管我早些时候曾论证说,从长期看,投资应当会压低高企的盈利能力。从宏观经济的角度看,很容易理解为什么高投资通常伴随着高利润。投资可以被重新定义为“随时间折旧的东西”。毕竟,正是这一点将投资与消费区分开来。消费的问题在于,一个实体的收入是另一个实体的成本——如果一家汽车制造商购买钢材,对钢铁制造商来说是收入,对汽车制造商来说是成本。但如果这家汽车制造商购买一台冲压机,将钢材加工成车门,这对冲压机制造商来说是收入,但并未正式成为汽车制造商的一项成本。这是“投资”,因此不会从汽车制造商的收入中扣除。即便汽车制造商从未实际使用这台机器,或者用它生产出从未有人购买的车门,情况依然如此。在这些情况下,汽车制造商最终不得不将这笔投资冲销,从而减少未来的利润,但最初的这笔投资在购买当期会增加利润,无论该投资最终是否具有实际用处。所以,在短期内,如果我们今天迎来一轮投资爆发,在其他条件不变的情况下,这会导致利润上升。从长期看,这会增加工业产能,并对利润率形成压力。
GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 18 And if investment were to rise from here, we know from the Kalecki equation that in the near term it would be a plus for profits, even though I argued early on that investment should, in the longer run, compete down high profitability. From a macro-economic perspective, it is easy to see why high investment generally equals high profits. Investment can be redefined as “that which is depreciated over time.” It is this, after all, that separates investment from consumption. The trouble with consumption is that one entity’s revenues are another entity’s costs – if an automaker buys steel, it is revenue for the steelmaker and a cost for the automaker. But if the automaker buys a stamping machine to turn that steel into a car door, it is revenue for the producer of the machine, but not officially a cost for the automaker. It is “investment” and so does not get subtracted from the income of the automaker. This is true even if the automaker never actually uses the machine, or uses it to make car doors that no one ever buys. In those circumstances, the automaker will eventually have to write off the investment, reducing future profits, but the original investment increases profits in the period it is bought regardless of the usefulness of that investment in the end. So in the short run, were we to get a burst of investment today, it would cause profits to go up, holding all else equal. In the longer run, it would increase industrial capacity and put pressure on margins.
但如果投资规模始终没有增长呢?如果投资持续低迷,利润承受的压力始终没有显现呢?利润能否永远保持在这么高的水平?有可能,但会带来一些可能难以为继的后果。要让利润在高位维持的同时政府赤字缩减,等式中的其他部分就需要填补这个缺口。我们必须看到经常账户赤字收窄、居民储蓄率下降以及股息增加这三者以某种组合形式出现。美国的经常账户赤字有可能从此改善,尤其是在石油和天然气产量增长可以减少石油进口的情况下。但考虑到美国以外经济体普遍疲软,且美元对贸易伙伴国持续走强,这种效应似乎不太可能非常显著。居民储蓄率有可能会下降。从图表 7 可以看出,当前的储蓄率看起来已经偏低,这乍看之下似乎让储蓄率下降变得不太可信。
But what if we never get that increase in investment? What if investment stays low and that pressure on profits does not materialize? Could profits stay high forever? They could, but there would be implications that might not be sustainable. If profits are to stay high while the government deficit shrinks, we would need other pieces of the equation to pick up the slack. We would need to see some combination of a shrinking current account deficit, falling household savings, and rising dividends. The U.S. current account deficit could improve from here, particularly insofar as rising oil and gas output allows us to cut back petroleum imports. But given the generally weak economic environment outside the U.S. and a U.S. dollar that has been strengthening versus trading partners, it seems unlikely that this will be a large effect. We could see a falling household savings rate. The current rate looks to be on the low side, as we can see in Exhibit 7, and that does make a falling rate seem implausible at first.
图表 7 家庭储蓄率 20% 15% 储蓄占 GDP 百分比 10% 5% 0% -5% 1929 年 3 月 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 2001 2005 2009 来源:美联储 截至 2012 年 12 月 31 日
但也许这个序列有点误导性。我们从图表 5 中看到,净股票回购长期以来一直处于高位。从股东的角度来看,股票回购实际上与一次性股息支付是一回事,而家庭部门以某种方式持有股票市场很大一部分份额。也许 GMO 《在通往均衡的路上发生了一件趣事——2013 年 4 月》第 19 页认为我们需要自 1990 年代中期以来将储蓄率因回购而上调。这还不足以将储蓄率拉回到长期平均数——部分回购收益归于外国股东,这笔收入并未在经常账户余额中正确反映为负值——但这确实意味着储蓄率可能不需要像长期趋势所暗示的那样大幅上升。如果企业不投资,它们可以将更多利润作为股息支付,根据卡莱茨基方程,这也是一个利好因素。高利润加上高股息——无论是“真正的”股息还是通过股票回购实现的“有效”股息——根据卡莱茨基方程,是一种可持续的状况。但尽管家庭确实持有了大量股票,但这些持有并非平均分布。事实上,尽管美国收入分配不均,财富分配的不均程度远高于此。此外,中产阶级的主要财富储存形式是房屋净值银行存款,因此股息绝大部分流向了富人。过去 30 年里,富人的境况一直很好,即使从劳动收入份额来看也是如此。如果还让他们永久性地从资本中获得大笔收入,即使在美国令人印象深刻地冷漠的选民群体中,最终也可能会引发反弹。美国对社会流动性的信念一直非常持久,但正如过去几年大量研究所表明的那样,这种信念越来越成为一种神话。¹ 一个日益固化的上层阶级,不仅在劳动收入方面远远超越其他人,还通过持续高额的股息和股票回购进一步攫取 GDP 的更大份额,这很可能会招致反对。即使富人避开了这个问题,为了维持高利润,他们必须实际花掉自己的收入。超级富豪倾向于储蓄其收入的很大一部分,因此如果收入分配越来越向富人倾斜,就需要不太富裕的人支出超过其收入的 100%,才能阻止储蓄率上升。而储蓄率上升,在其他条件不变的情况下,会损害利润。实际上,1990 年代,大部分家庭似乎曾出现负储蓄率,人们基于股市永远上涨的假设来消费;2000 年代这种情况再次出现,人们基于房价永远上涨的假设来消费。最近,失业和就业不足的人群支出超过了其收入,因为他们的收入下降了,却仍需维持生计。但除了那些借钱给政府的人之外,最终总会到一个时间点,债权人不再愿意借钱给那些支出超过收入的人。如果其他家庭停止动用储蓄(去储蓄化),就需要富人真正增加消费来维持整个体系的运转。可能根本没有足够多的商品和服务供富人购买来达成这个目的,但即便可能做到,也几乎肯定会加剧无产者的不满,他们至少会在投票箱里发泄这种情绪。
Exhibit 7 Household Savings 20% 15% Savings as Percent of GDP 10% 5% 0% -5% Mar- 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 01 05 09 Source: Federal Reserve As of 12/31/12 But perhaps this series is a bit misleading. We saw from Exhibit 5 that net stock buybacks have been running at high levels for a long time now. A stock buyback is really the same thing as a one-off dividend payment from the standpoint of shareholders, and the household sector in one way or another holds a large fraction of the stock market. Perhaps GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 19 we need to adjust savings rates upward since the mid-1990s for buybacks. This wouldn’t be enough to bring savings rates up to long-term averages – some of the buybacks accrue to the benefit of foreign shareholders and this income is not properly captured as a negative in the current account balance – but it does mean that savings rates might not need to rise much as the long-term trend suggests. And if corporations are not investing, they can pay out more profits as dividends, which is also a plus via the Kalecki equation. High profits with high dividends – either “true” dividends or “effective” dividends through stock buybacks – is a sustainable situation according to the Kalecki equation. But while households do hold much of the stock market, those holdings are not spread equally. In fact, as unequal as the income distribution is in the U.S., the wealth distribution is far more unequal still. Furthermore, the predominant stores of wealth for the middle class are home equity and savings in the bank, so dividends accrue overwhelmingly to the rich. The rich have been doing very well in the past 30 years, even in terms of their share of labor income. Giving them a permanently large slug of income from capital as well will probably eventually cause a backlash even among the impressively stolid U.S. electorate. The belief in social mobility in the U.S. has been a strongly enduring one, but as copious research has shown in the past few years, it is increasingly a myth.1 An increasingly permanent upper class, which not only does far better in terms of labor income than the rest but further accumulates a further chunk of GDP in the form of persistently high dividends and stock buybacks, is likely to accumulate enemies. Even if the rich avoid this problem, it is essential that they actually spend their income in order for profits to stay high. The very wealthy tend to save a large chunk of their income, so if the distribution of income is skewed ever more in their favor, the need will arise for the less well-off to spend more than 100% of their income to stop the savings rate from rising. And rising savings, all else equal, hurts profits. Negative savings rates for the bulk of households actually seem to have been the case in the 1990s as people spent on the assumption that the stock market would always go up, and they occurred again in the 2000s as people spent on the assumption that home prices would always go up. More recently, the un- and under-employed have been spending more than their income because their incomes have fallen yet they still need to live. But with the possible exception of those lending to governments, there eventually comes a time when lenders stop lending to those who want to spend more than their income. If the rest of households stop dis-saving, it will require the rich to really up their spending to keep the system going. There may not actually be enough goods and services for the rich to buy to make this work, but even if it were possible, it would almost certainly increase the resentment of the have-nots until they took it out on them through the ballot box, if nothing else.
结论 那种描绘未来反乌托邦景象——富人为了安全而把自己与社会的其他部分隔离开来,同时买通政客以确保他们能继续享有特权²——对帮助我们理解当前局面何时结束毫无用处。而现实是,我们确实不知道它何时会结束。在其他条件相同的情况下,财政赤字下降会损害盈利能力,但如果投资方面终于迎来迟迟未到的复苏,或者回购活动持续强劲,那么赤字下降有可能在利润率没有回落至历史平均水平的情况下就被消化了。投资增长极有可能通过加剧竞争,最终播下利润下降的种子,就像回购和股息会通过储蓄增加或社会反应而导致利润下滑一样。但至于何时发生,则无从知晓。对我们 GMO 而言,时机固然重要,但只是次要因素。鉴于股票的久期极长,即使再经历十年的超正常利润,也只能让股市的公允价值提高大约 10 个百分点。只有当利润确实永久性地提高时,其影响才真正重大。我们能保证这种永久性提高确实不可能发生吗?不能。但当我们判断错误会严重损害客户投资组合时,假设这种永久性提高一定会发生,在我们看来是完全不审慎的。
Conclusion The image of a dystopian future in which the rich gate themselves off from the rest of society for protection while buying off politicians to ensure their continued privilege2 doesn’t help us at all in understanding when the current situation will end. And the reality is that we really don’t know when it will. All else equal, falling budget deficits will hurt profitability, but if we do finally get the much-delayed recovery in investment or continued strong buyback activity, it is possible falling deficits could be absorbed without margins falling back toward historical averages. Rising investment would, in all likelihood, sow the seed of falling profits in time through increased competition, as would buybacks and dividends through rising savings or a societal response. But as for when, it is impossible to know. For us at GMO, the timing matters, but it is only of secondary importance. Given the very long duration of equities, even another decade of above-normal profits would serve only to increase the fair value of the stock market by perhaps 10 percentage points. It is only if profits are truly permanently higher that the impact is a really big deal. Can we swear that such a permanent increase is truly impossible? No. But it seems to us entirely imprudent to assume that such a permanent increase is in the cards, when the implications of being wrong would be quite damaging to our clients’ portfolios.
1 除其他研究外,可参见莱拉·本加利(Leila Bengali)与玛丽·戴(Mary Day)合著的《美国经济流动性:梦想与数据》,旧金山联邦储备银行,2013 年 3 月。
1 Among other studies, see “U.S. Economic Mobility: The Dream and the Data,” by Leila Bengali and Mary Day, Federal Reserve Bank of San Francisco, March 2013.
2 诚然,这种景象有多反乌托邦,很大程度上可能取决于你站在大门的哪一边。
2 Admittedly, how dystopian this looks probably depends a lot on which side of the gate you are on.
GMO:奔赴均衡路上一件趣事——2013 年 4 月 20 附录:全球净资产收益率 有不少评论者抱怨,将焦点放在美国利润占 GDP 的百分比上会产生误导,因为在全球经济中,分母应该是全球 GDP,而非美国 GDP。我们认为这不太可能解释当前美国盈利能力的高企,因为全球多数地区的利润率似乎都处于高位。令人惊讶的是,很少有国家能像美国那样方便地提供企业盈利能力数据,但对于发达经济体的上市公司,我们可以转而考察它们的实际净资产收益率。这听起来简单,做起来却稍显棘手,但我们的全球股票团队的马丁·塔利领导了一个小组,致力于汇总出我们对真实净资产收益率的最佳估算。他们迄今的努力成果展现在图 A1 中。
GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 20 Appendix: Global Return on Equity Capital There have been a number of commentators who have complained that a focus on U.S. profits as a percent of GDP is misleading, because in a global economy it is world GDP that should be in the denominator, not U.S. GDP. We think this is unlikely to explain currently high U.S. profitability because profit margins seem to be elevated in most places around the world. Surprisingly few countries provide their corporate profitability data as conveniently as the U.S. does, but for publically listed companies across the developed world, we can look instead at their real return on equity capital. This is a bit trickier than it sounds, but Martin Tarlie of our Global Equity team has led a group focused on putting together our best estimate for a true return on equity capital. The result of their efforts to date is presented in Exhibit A1.
附录 A1 实际净资产收益率
12%
10%
欧洲
8%
预估净资产收益率
美国
Exhibit A1 Real Return on Equity Capital 12% 10% Europe 8% Return on Estimated Equity U.S.
U.K.
U.K.
6% 4% Japan 2% 0% -2% Mar- 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 Source: GMO As of 3/31/13 Continental Europe and the U.K. have a surprisingly similar pattern of return on capital to the U.S. While Japan has clearly lagged behind, relative to its rather miserable historical standards, it, too, has had pretty good profitability over the last eight or nine years. This kind of analysis actually takes a good deal of historical data to come up with a good estimate of equity capital. We don’t have a long enough history on the emerging equity markets to do the same analysis, but we can look at return on stated book value as an imperfect proxy, as seen in Exhibit A2. On this basis, emerging profitability is less far above normal, but we see the same basic pattern of high profitability over the past eight or nine years with a dip for the financial crisis.
6% 4% Japan 2% 0% -2% Mar- 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 Source: GMO As of 3/31/13 Continental Europe and the U.K. have a surprisingly similar pattern of return on capital to the U.S. While Japan has clearly lagged behind, relative to its rather miserable historical standards, it, too, has had pretty good profitability over the last eight or nine years. This kind of analysis actually takes a good deal of historical data to come up with a good estimate of equity capital. We don’t have a long enough history on the emerging equity markets to do the same analysis, but we can look at return on stated book value as an imperfect proxy, as seen in Exhibit A2. On this basis, emerging profitability is less far above normal, but we see the same basic pattern of high profitability over the past eight or nine years with a dip for the financial crisis.
如果美国企业的盈利能力看起来异常高企,只是因为我们应该用美国利润对比美国国内生产总值(GDP)而非全球 GDP,那么我们应该看到它们是以牺牲外国竞争对手为代价而获益。全球范围内盈利能力高企的局面,不可能仅仅是因为某一组企业从全球贸易中获得了不成比例的好处。全球利润占全球 GDP 的比重几乎肯定处于历史高位附近,这意味着任何合理化解释都不能依赖局部原因,也不能依赖对某一特定股票群体盈利能力的计算问题。
If U.S. corporations are not as anomalously profitable as they seem because we should be measuring U.S. profits against U.S. and not global GDP, then we should see them benefitting at the expense of foreign competitors. Profitability that is high around the world cannot be due to one group of companies disproportionately benefitting from global trade. Global profits are almost certainly near all-time highs as a percent of global GDP, which means any rationalization cannot rely on a local explanation or a problem properly calculating the profitability of a particular group of stocks.
GMO 《走向均衡路上的趣事》——2013 年 4 月 第 21 页 图表 A2 新兴市场净资产收益率(ROE) 18% 包含金融业 16% 14% 排除金融业 12% 10% 8% 6% 1988 年 12 月 89 90 91 92 93 93 94 95 96 97 98 98 99 00 01 02 03 03 04 05 06 07 08 08 09 10 11 12 13 来源:IFC、MSCI 截至 2013 年 3 月 31 日 英克先生是资产配置部门的联合主管。
GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 21 Exhibit A2 Emerging ROE 18% Including Financials 16% 14% Excluding Financials 12% 10% 8% 6% Dec-88 89 90 91 92 93 93 94 95 96 97 98 98 99 00 01 02 03 03 04 05 06 07 08 08 09 10 11 12 13 Source: IFC, MSCI As of 3/31/13 Mr. Inker is the co-head of asset allocation.
免责声明:本文所表达的观点为 Ben Inker 截至 2013 年 4 月 26 日的看法,并可能因市场及其他条件随时发生变更。本文并非购买或出售任何证券的要约或招揽,也不应被视作如此。
Disclaimer: The views expressed herein are those of Ben Inker as of April 26, 2013 and are subject to change at any time based on market and other conditions. This is not an offer or solicitation for the purchase or sale of any security and should not be construed as such.
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GMO 《走向均衡路上的趣事》——2013 年 4 月 第 22 页
GMO A Funny Thing Happened on the Way to Equilibrium – April 2013 22