From perception to action: An economic model of brain processes
We build on research from neurobiology to model the process through which the brain maps outside evidence into decisions. The sensory system encodes information through cell-firing. Cell-firing is measured against a threshold, and an action is triggered depending on whether the threshold is surpassed. The decision system modulates the threshold. We show that the (constrained) optimal threshold is set in a way that existing beliefs are likely to be confirmed. We then derive behavioral implications. Our mechanism can explain in a unified framework a number of ‘anomalies’ noted in psychology and economics: (i) belief anchoring (the order in which evidence is received affects beliefs and choices); (ii) polarization (individuals with opposite priors may polarize their opinions after receiving identical evidence); (iii) payoff-dependence of beliefs and (iv) belief disagreement (individuals with identical priors who receive the same evidence may end up with different posterior beliefs).
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- Amos Tversky & Daniel Kahneman, 1979.
"Prospect Theory: An Analysis of Decision under Risk,"
Levine's Working Paper Archive
7656, David K. Levine.
- Kahneman, Daniel & Tversky, Amos, 1979. "Prospect Theory: An Analysis of Decision under Risk," Econometrica, Econometric Society, vol. 47(2), pages 263-91, March.
- Isabelle Brocas & Juan D. Carrillo, 2008. "Theories of the Mind," American Economic Review, American Economic Association, vol. 98(2), pages 175-80, May.
- Shefrin, Hersh M & Thaler, Richard H, 1988. "The Behavioral Life-Cycle Hypothesis," Economic Inquiry, Western Economic Association International, vol. 26(4), pages 609-43, October.
- Matthew Rabin & Joel L. Schrag, 1999. "First Impressions Matter: A Model of Confirmatory Bias," The Quarterly Journal of Economics, Oxford University Press, vol. 114(1), pages 37-82.
- 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.
- Arthur J. Robson, 2001. "The Biological Basis of Economic Behavior," Journal of Economic Literature, American Economic Association, vol. 39(1), pages 11-33, March.
- Margaret A. Meyer, 1991. "Learning from Coarse Information: Biased Contests and Career Profiles," Review of Economic Studies, Oxford University Press, vol. 58(1), pages 15-41.
- Arthur J. Robson, 2001. "Why Would Nature Give Individuals Utility Functions?," Journal of Political Economy, University of Chicago Press, vol. 109(4), pages 900-929, August.
- Chew, Soo Hong, 1983. "A Generalization of the Quasilinear Mean with Applications to the Measurement of Income Inequality and Decision Theory Resolving the Allais Paradox," Econometrica, Econometric Society, vol. 51(4), pages 1065-92, July.
- Quiggin, John, 1982. "A theory of anticipated utility," Journal of Economic Behavior & Organization, Elsevier, vol. 3(4), pages 323-343, December.
- Sah, Raaj Kumar & Stiglitz, Joseph E, 1986.
"The Architecture of Economic Systems: Hierarchies and Polyarchies,"
American Economic Review,
American Economic Association, vol. 76(4), pages 716-27, September.
- Raaj Kumar Sah & Joseph E. Stiglitz, 1984. "The Architecture of Economic Systems: Hierarchies and Polyarchies," NBER Working Papers 1334, National Bureau of Economic Research, Inc.
- Fryer Roland & Jackson Matthew O., 2008. "A Categorical Model of Cognition and Biased Decision Making," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 8(1), pages 1-44, February.
- Chew, Soo Hong & Sagi, Jacob S., 2008. "Small worlds: Modeling attitudes toward sources of uncertainty," Journal of Economic Theory, Elsevier, vol. 139(1), pages 1-24, March.
- Drazen Prelec, 1998. "The Probability Weighting Function," Econometrica, Econometric Society, vol. 66(3), pages 497-528, May.
- Glimcher, Paul W. & Dorris, Michael C. & Bayer, Hannah M., 2005. "Physiological utility theory and the neuroeconomics of choice," Games and Economic Behavior, Elsevier, vol. 52(2), pages 213-256, August.
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