Quote of the week:
“The person that turns over the most rocks wins the game.” (Source)
Inefficient market hypothesis
The best way to forecast the future is to study the past. In that spirit, this week I spent time reading some older analysis of the October 1987 crash, which happened precisely 35 years ago this week. I’d like to share a few of my favorite pieces here.
The first piece I’ll highlight came out in November 1987. It was published by the Nobel Prize-winning economist Robert Shiller (who back then was a 41-year-old researcher for the National Bureau of Economic Research). The day of the crash, Shiller had a good idea: He sent a survey to 175 institutional investors and 125 individual investors asking them a simple question: “So, what the heck just happened?” (I’m paraphrasing, here…)
Shiller’s resulting study offers a few powerful observations on psychological behavior and investor sentiment. Perhaps most importantly, Shiller exposes the relative absurdity of the efficient market hypothesis, as applied to price movements in the short-term.
“In interpreting the lack of an identifiable proximate cause for the drop,” Shiller writes, “it should be borne in mind that there is a growing literature that calls into question the ‘efficient markets’ theory that all price movements must be interpretable by information about economic fundamentals… there is statistical evidence that suggests the stock market may have a life of its own to some extent, unrelated to economic fundamentals.” He continues:
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Why the 1987 crash didn’t scare Peter Lynch
In 2001, a PBS interviewer asked Peter Lynch about his thoughts on the 1987 crash. His answer: “1987 wasn’t that scary because I concentrate on fundamentals. I call up companies. I look at their balance sheet. I look at their business.”
Lynch acknowledges that in the short-term, market prices and macroeconomics will naturally get the most attention from investors, media, and the general public. But over the long-term, there is nothing more important than company fundamentals and an individual firm’s growth trajectory. He says:
Philip Fisher’s most important lesson
Concluding this (arguably macabre) Nightcrawler edition on the anatomy of the 1987 crash is a wonderful Forbes interview with Philip Fisher published on the morning of Black Monday. In the interview, Fisher was asked about the most important lesson from his decades as an investors. His answer: Just play the long game.
Like Lynch would later argue, Fisher makes the case that letting your winners run is the single most important contributor to outperforming. “It is just appalling the nerve strain people put themselves under trying to buy something today and sell it tomorrow,” Fisher says. He continues:
A few more links I enjoyed:
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