Are We All Better Drivers than Average? Self-Perception and Biased Behaviour
This Paper studies a model where individuals have imperfect self-knowledge and learning is costly. It shows that the endogenous decision to collect information before taking an action creates a systematic and testable bias in the aggregate behaviour of agents in the economy. More precisely, individuals distort the information acquisition procedure so as to favour the possibility of undertaking the action that generates the highest benefits in some states, even if it also generates the biggest losses in some others. The Paper thus explains within a rational framework why 80% of individuals may perceive themselves as being brighter, better drivers and more able entrepreneurs than their average peer. Applications to biases in career choices and judicial decisions are discussed.
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- Benabou, R. & Tirole, J., 2000.
"Self-Confidence: Intrapersonal Strategies,"
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"The supply of information by a concerned expert,"
Royal Economic Society, vol. 114(497), pages 487-505, 07.
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- Manove, M., 1995. "Entrepreneurs, Optimism, and the Competitive Edge," UFAE and IAE Working Papers 296.95, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
- Andrew Caplin & John Leahy, 2001. "Psychological Expected Utility Theory and Anticipatory Feelings," The Quarterly Journal of Economics, Oxford University Press, vol. 116(1), pages 55-79.
- Juan D. Carrillo & Thomas Mariotti, 2000. "Strategic Ignorance as a Self-Disciplining Device," Review of Economic Studies, Oxford University Press, vol. 67(3), pages 529-544.
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