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Thinking, Fast and Slow - Daniel Kahneman

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outsiders, recruiting CEOs from companies with high recent returns. The incoming CEO then<br />

gets credit, at least temporarily, for his new firm’s subsequent improvement. (Mean-while, his<br />

replacement at his former firm is now struggling, leading the new bosses to believe that they<br />

definitely hired “the right guy.”) Anytime a CEO jumps ship, the new company must buy out<br />

his stake (in stock <strong>and</strong> options) at his old firm, setting a baseline for future compensation that<br />

has nothing to do with performance at the new firm. Tens of millions of dollars in<br />

compensation get awarded for “personal” achievements that are driven mainly by regression<br />

<strong>and</strong> halo effects (personal communication, December 29, 2009).<br />

20: The Illusion of Validity<br />

this startling conclusion: Brad M. Barber <strong>and</strong> Terrance Odean, “Trading Is Hazardous to Your<br />

Wealth: The Common Stock Investment Performance of Individual Investors,” Journal of<br />

Finance 55 (2002): 773–806.<br />

men acted on their useless ideas: Brad M. Barber <strong>and</strong> Terrance Odean, “Boys Will Be Boys:<br />

Gender, Overconfidence, <strong>and</strong> Common Stock Investment,” Quarterly Journal of Economics<br />

116 (2006): 261–92.<br />

selling “winners”: This “disposition effect” is discussed further.<br />

responding to news: Brad M. Barber <strong>and</strong> Terrance Odean, “All That Glitters: The Effect of<br />

Attention <strong>and</strong> News on the Buying Behavior of Individual <strong>and</strong> Institutional Investors,” Review<br />

of Financial Studies 21 (2008): 785–818.<br />

wealth from amateurs: Research on stock trades in Taiwan concluded that the transfer of<br />

wealth from individuals to financial institutions amounts to a staggering 2.2% of GDP: Brad<br />

M. Barber, Yi-Tsung Lee, Yu-Jane Liu, <strong>and</strong> Terrance Odean, “Just How Much Do Individual<br />

Investors Lose by Trading?” Review of Financial Studies 22 (2009): 609–32.<br />

underperform the overall market: John C. Bogle, Common Sense on Mutual Funds: New<br />

Imperatives for the Intelligent Investor (New York: Wiley, 2000), 213.<br />

persistent differences in skill: Mark Grinblatt <strong>and</strong> Sheridan Titman, “The Persistence of Mutual<br />

Fund Performance,” Journal of Finance 42 (1992): 1977–84. Edwin J. Elton et al., “The<br />

Persistence of Risk-Adjusted Mutual Fund Performance,” Journal of Business 52 (1997): 1–<br />

33. Edwin Elton et al., “Efficiency With Costly Information: A Re-interpretation of Evidence<br />

from Managed Portfolios,” Review of Financial Studies 6 (1993): 1–21.<br />

“In this age of academic hyperspecialization”: Philip E. Tetlock, Expert Political Judgment: ><br />

How Good is It? How Can We Know? (Princeton: Princeton University Press, 2005), 233.<br />

21: Intuitions vs. Formulas

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