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Complexity and Bounded Rationality in Individual Decision Problems

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  • Theodoros M. Diasakos

    ()
    (University of St Andrews)

Abstract

I develop a model of endogenous bounded rationality due to search costs, arising implicitly from the problem's complexity. The decision maker is not required to know the entire structure of the problem when making choices but can think ahead, through costly search, to reveal more of it. However, the costs of search are not assumed exogenously; they are inferred from revealed preferences through her choices. Thus, bounded rationality and its extent emerge endogenously: as problems become simpler or as the benefits of deeper search become larger relative to its costs, the choices more closely resemble those of a rational agent. For a fixed decision problem, the costs of search will vary across agents. For a given decision maker, they will vary across problems. The model explains, therefore, why the disparity, between observed choices and those prescribed under rationality, varies across agents and problems. It also suggests, under reasonable assumptions, an identifying prediction: a relation between the benefits of deeper search and the depth of the search. As long as calibration of the search costs is possible, this can be tested on any agent-problem pair. My approach provides a common framework for depicting the underlying limitations that force departures from rationality in different and unrelated decision-making situations. Specifically, I show that it is consistent with violations of timing independence in temporal framing problems, dynamic inconsistency and diversification bias in sequential versus simultaneous choice problems, and with plausible but contrasting risk attitudes across small- and large-stakes gambles.

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Paper provided by Department of Economics, University of St. Andrews in its series Discussion Paper Series, Department of Economics with number 201314.

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Handle: RePEc:san:wpecon:1314

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  1. Kalai, Ehud & Stanford, William, 1988. "Finite Rationality and Interpersonal Complexity in Repeated Games," Econometrica, Econometric Society, vol. 56(2), pages 397-410, March.
  2. Karni, E. & Safra, Z., 1988. "Behaviorally Consistent Optimal Stopping Rules," Papers 9-88, Tel Aviv.
  3. Matthew Rabin & Richard H. Thaler, 2001. "Anomalies: Risk Aversion," Journal of Economic Perspectives, American Economic Association, vol. 15(1), pages 219-232, Winter.
  4. Xavier Gabaix & David Laibson & Guillermo Moloche & Stephen Weinberg, 2006. "Costly Information Acquisition: Experimental Analysis of a Boundedly Rational Model," American Economic Review, American Economic Association, vol. 96(4), pages 1043-1068, September.
  5. Segal, Uzi, 1987. "The Ellsberg Paradox and Risk Aversion: An Anticipated Utility Approach," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 28(1), pages 175-202, February.
  6. Chatterjee, K. & Sabourian, H., 1997. "Multiperson Bargaining and Strategic Complexity," Cambridge Working Papers in Economics 9733, Faculty of Economics, University of Cambridge.
  7. Binmore, Ken & McCarthy, John & Ponti, Giovanni & Samuelson, Larry & Shaked, Avner, 2002. "A Backward Induction Experiment," Journal of Economic Theory, Elsevier, vol. 104(1), pages 48-88, May.
  8. Raj Chetty & Adam Szeidl, 2006. "Consumption Commitments and Risk Preferences," NBER Working Papers 12467, National Bureau of Economic Research, Inc.
  9. John Hey, . "Do People (Want to) Plan?," Discussion Papers 99/22, Department of Economics, University of York.
  10. Read, Daniel & Loewenstein, George & Rabin, Matthew, 1999. "Choice Bracketing," Journal of Risk and Uncertainty, Springer, vol. 19(1-3), pages 171-97, December.
  11. Kahneman, Daniel & Tversky, Amos, 1979. "Prospect Theory: An Analysis of Decision under Risk," Econometrica, Econometric Society, vol. 47(2), pages 263-91, March.
  12. Cubitt, Robin P & Starmer, Chris & Sugden, Robert, 1998. "Dynamic Choice and the Common Ratio Effect: An Experimental Investigation," Economic Journal, Royal Economic Society, vol. 108(450), pages 1362-80, September.
  13. Gilboa, Itzhak & Schmeidler, David, 1989. "Maxmin expected utility with non-unique prior," Journal of Mathematical Economics, Elsevier, vol. 18(2), pages 141-153, April.
  14. Douglas Gale & Hamid Sabourian, 2005. "Complexity and Competition," Econometrica, Econometric Society, vol. 73(3), pages 739-769, 05.
  15. Charness, Gary & Rabin, Matthew, 2002. "Understanding Social Preferences with Simple Tests," Department of Economics, Working Paper Series qt3d04q5sm, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  16. Enrica Carbone & John Hey, . "A Test of the Principle of Optimality," Discussion Papers 99/9, Department of Economics, University of York.
  17. John Hey & Jinkwon Lee, 2005. "Do Subjects Separate (or Are They Sophisticated)?," Experimental Economics, Springer, vol. 8(3), pages 233-265, September.
  18. Eliaz, Kfir, 2003. "Nash equilibrium when players account for the complexity of their forecasts," Games and Economic Behavior, Elsevier, vol. 44(2), pages 286-310, August.
  19. Lee, Jihong & Sabourian, Hamid, 2007. "Coase theorem, complexity and transaction costs," Journal of Economic Theory, Elsevier, vol. 135(1), pages 214-235, July.
  20. Goldman, Steven M, 1980. "Consistent Plans," Review of Economic Studies, Wiley Blackwell, vol. 47(3), pages 533-37, April.
  21. Jehiel, Philippe, 2001. "Limited Foresight May Force Cooperation," Review of Economic Studies, Wiley Blackwell, vol. 68(2), pages 369-91, April.
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