"The possibility that stock value in aggregate can become irrationally high is contrary to the hard-form "efficient market" theory that many of you once learned as gospel from your mistaken professors of yore. Your mistaken professors were too much influenced by "rational man" models of human behavior from economics and too little by "foolish man" models from psychology and real-world experience."

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Source: A Lesson on Elementary, Worldly Wisdom as it Relates to Investment Management and Business. Charlie Munger's lecture to the students at the University of Southern California in Los Angeles, 1994.

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Charlie Munger

Investor, Businessman

Charlie Munger is a prominent investor and vice chairman of Berkshire Hathaway, known for his insights on rational decision-making and multidisciplinary learning.

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