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Affective Decision-Making: A Theory of Optimism-Bias

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    Optimism-bias is inconsistent with the independence of decision weights and payoffs found in models of choice under risk, such as expected utility theory and prospect theory. Hence, to explain the evidence suggesting that agents are optimistically biased, we propose an alternative model of risky choice, affective decision-making, where decision weights -- which we label affective or perceived risk -- are endogenized. Affective decision making (ADM) is a strategic model of choice under risk, where we posit two cognitive processes: the "rational" and the "emotional" processes. The two processes interact in a simultaneous-move intrapersonal potential game, and observed choice is the result of a pure strategy Nash equilibrium in this potential game. We show that regular ADM potential games have an odd number of locally unique pure strategy Nash equilibria, and demonstrate this finding for affective decision making in insurance markets. We prove that ADM potential games are refutable, by axiomatizing the ADM potential maximizers.

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    File URL: http://cowles.yale.edu/sites/default/files/files/pub/d17/d1759.pdf
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    Paper provided by Cowles Foundation for Research in Economics, Yale University in its series Cowles Foundation Discussion Papers with number 1759.

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    Length: 23 pages
    Date of creation: Mar 2010
    Date of revision:
    Handle: RePEc:cwl:cwldpp:1759
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    Web page: http://cowles.yale.edu/

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    1. repec:oup:restud:v:75:y:2008:i:3:p:729-762 is not listed on IDEAS
    2. Ulrike Malmendier & Geoffrey Tate, 2004. "Who Makes Acquisitions? CEO Overconfidence and the Market's Reaction," NBER Working Papers 10813, National Bureau of Economic Research, Inc.
    3. Heath, Chip & Tversky, Amos, 1991. " Preference and Belief: Ambiguity and Competence in Choice under Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 4(1), pages 5-28, January.
    4. Epstein, Larry G. & Marinacci, Massimo & Seo, Kyoungwon, 2007. "Coarse contingencies and ambiguity," Theoretical Economics, Econometric Society, vol. 2(4), December.
    5. Daniel Kahneman, 2003. "Maps of Bounded Rationality: Psychology for Behavioral Economics," American Economic Review, American Economic Association, vol. 93(5), pages 1449-1475, December.
    6. David K. Levine & Drew Fudenberg, 2006. "A Dual-Self Model of Impulse Control," American Economic Review, American Economic Association, vol. 96(5), pages 1449-1476, December.
    7. Jonathan A. Parker & Markus K. Brunnermeier, 2004. "Optimal Expectations," Econometric Society 2004 North American Winter Meetings 426, Econometric Society.
    8. Mercè Roca & Robin Hogarth & A. John Maule, 2005. "Ambiguity seeking as a result of the status quo bias," Economics Working Papers 882, Department of Economics and Business, Universitat Pompeu Fabra, revised Jun 2006.
    9. Gajdos, T. & Hayashi, T. & Tallon, J.-M. & Vergnaud, J.-C., 2008. "Attitude toward imprecise information," Journal of Economic Theory, Elsevier, vol. 140(1), pages 27-65, May.
    10. Thaler, Richard H & Shefrin, H M, 1981. "An Economic Theory of Self-Control," Journal of Political Economy, University of Chicago Press, vol. 89(2), pages 392-406, April.
    11. Peter Klibanoff & Massimo Marinacci & Sujoy Mukerji, 2002. "A smooth model of decision making under ambiguity," ICER Working Papers - Applied Mathematics Series 11-2003, ICER - International Centre for Economic Research, revised Apr 2003.
    12. Peter Klibanoff & Massimo Marinacci & Sujoy Mukerji, 2006. "Recursive Smooth Ambiguity Preferences," Carlo Alberto Notebooks 17, Collegio Carlo Alberto, revised 2008.
    13. Abraham Neyman, 1997. "Correlated Equilibrium and Potential Games," International Journal of Game Theory, Springer, vol. 26(2), pages 223-227.
    14. Caplin, A. & Leahy, J., 1999. "The Supply of Information by a Concerned Expert," Working Papers 99-08, C.V. Starr Center for Applied Economics, New York University.
    15. David Schmeidler, 1989. "Subjective Probability and Expected Utility without Additivity," Levine's Working Paper Archive 7662, David K. Levine.
    16. Amos Tversky & Daniel Kahneman, 1979. "Prospect Theory: An Analysis of Decision under Risk," Levine's Working Paper Archive 7656, David K. Levine.
    17. Fabio Maccheroni & Massimo Marinacci & Aldo Rustichini, 2004. "Ambiguity Aversion, Robustness, and the Variational Representation of Preferences," Carlo Alberto Notebooks 12, Collegio Carlo Alberto, revised 2006.
    18. 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.
    19. Akerlof, George A & Dickens, William T, 1982. "The Economic Consequences of Cognitive Dissonance," American Economic Review, American Economic Association, vol. 72(3), pages 307-19, June.
    20. Keller, Punam Anand & Block, Lauren Goldberg, 1996. " Increasing the Persuasiveness of Fear Appeals: The Effect of Arousal and Elaboration," Journal of Consumer Research, Oxford University Press, vol. 22(4), pages 448-59, March.
    21. Ulrike Malmendier & Geoffrey Tate, 2004. "CEO Overconfidence and Corporate Investment," NBER Working Papers 10807, National Bureau of Economic Research, Inc.
    22. Monderer, Dov & Shapley, Lloyd S., 1996. "Potential Games," Games and Economic Behavior, Elsevier, vol. 14(1), pages 124-143, May.
    23. Colin F. Camerer & George Loewenstein & Drazen Prelec, 2004. "Neuroeconomics: Why Economics Needs Brains," Scandinavian Journal of Economics, Wiley Blackwell, vol. 106(3), pages 555-579, October.
    24. Howe, Roger, 1982. "Most convex functions are smooth," Journal of Mathematical Economics, Elsevier, vol. 9(1-2), pages 37-39, January.
    25. Malcolm Baker & Richard S. Ruback & Jeffrey Wurgler, 2004. "Behavioral Corporate Finance: A Survey," NBER Working Papers 10863, National Bureau of Economic Research, Inc.
    26. Botond Köszegi, 2006. "Ego Utility, Overconfidence, and Task Choice," Journal of the European Economic Association, MIT Press, vol. 4(4), pages 673-707, 06.
    27. Isabelle Brocas & Juan D. Carrillo, 2008. "Theories of the Mind," American Economic Review, American Economic Association, vol. 98(2), pages 175-80, May.
    28. B. Douglas Bernheim & Antonio Rangel, 2004. "Addiction and Cue-Triggered Decision Processes," American Economic Review, American Economic Association, vol. 94(5), pages 1558-1590, December.
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