The Loser’s Curse: Overconfidence vs. Market Efficiency in the ∗ National Football League Draft Cade Massey Yale University School of Management Richard H. Thaler University of Chicago Graduate School of Business Current Draft March 3, 2006 Preliminary Draft Abstract A question of increasing interest to researchers in a variety of fields is whether the incentives and experience present in many “real world” settings mitigate judgment and decision-making biases. To investigate this question, we analyze the decision making of National Football League teams during their annual player draft. This is a domain in which incentives are exceedingly high and the opportunities for learning rich. It is also a domain in which multiple psychological factors suggest teams may overvalue the “right to choose” in the draft – non-regressive predictions, overconfidence, the winner’s curse and false consensus all suggest a bias in this direction. Using archival data on draft-day trades, player performance and compensation, we compare the market value of draft picks with the historical value of drafted players. We find that top draft picks are overvalued in a manner that is inconsistent with rational expectations and efficient markets and consistent with psychological research. ∗ We thank Marianne Bertrand, Russ Fuller, Shane Frederick, Rob Gertner, Rick Larrick, Michael Lewis, Toby Moskowitz, Yuval Rottenstreich , Suzanne Shu, Jack Soll, George Wu, and workshop participants at the University of Chicago, Duke, Penn, UCLA, Cornell, Yale and Carnegie Mellon for valuable comments. We also thank Al Mannes and Wagish Bhartiya for very helpful research assistance. Comments are welcome. E-mail addresses:
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