Imitation and Experimentation in a Changing Environment
This paper analyzes the equilibrium play in a random matching model with a changing environment. Under myopic decision making, players adopt imitation strategies similar to those observed in evolutionary models with sampling from past play in the population. If the players are patient, equilibrium strategies display elements of experimentation in addition to imitation. If the changes in the environment are infrequent enough, these strategies succeed in coordinating almost all of the players on the dominant action almost all of the time. The myopic rules, on the other hand, result in mis-coordination for a positive fraction of time.
|Date of creation:||Oct 1999|
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- Hofbauer, Josef & Weibull, Jörgen W., 1995.
"Evolutionary Selection against Dominated Strategies,"
Working Paper Series
433, Research Institute of Industrial Economics.
- Hofbauer, Josef & Weibull, Jorgen W., 1996. "Evolutionary Selection against Dominated Strategies," Journal of Economic Theory, Elsevier, vol. 71(2), pages 558-573, November.
- Hofbauer, Josef & Weibull, Jîrgen W., 1995. "Evolutionary selection against dominated strategies," CEPREMAP Working Papers (Couverture Orange) 9506, CEPREMAP.
- J. Hofbauer & J. Weibull, 2010. "Evolutionary Selection against dominated strategies," Levine's Working Paper Archive 444, David K. Levine.
- Aldo Rustichini & Asher Wolinsky, 1992.
"Learning about Variable Demand in the Long Run,"
1015, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Karl H. Schlag, 1995.
"Why Imitate, and if so, How? A Bounded Rational Approach to Multi-Armed Bandits,"
Discussion Paper Serie B
361, University of Bonn, Germany, revised Mar 1996.
- Schlag, Karl H., 1998. "Why Imitate, and If So, How?, : A Boundedly Rational Approach to Multi-armed Bandits," Journal of Economic Theory, Elsevier, vol. 78(1), pages 130-156, January.
- Karl H. Schlag, . "Why Imitate, and if so, How? A Bounded Rational Approach to Multi- Armed Bandits," ELSE working papers 028, ESRC Centre on Economics Learning and Social Evolution.
- Friedman, Daniel, 1991. "Evolutionary Games in Economics," Econometrica, Econometric Society, vol. 59(3), pages 637-66, May.
- Smith, L, 1996.
"Social Learning in a Changing World,"
96-34, Massachusetts Institute of Technology (MIT), Department of Economics.
- Jorgen W. Weibull, 1997. "Evolutionary Game Theory," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262731215, December.
- Godfrey Keller & Sven Rady, 1997.
"Optimal Experimentation in a Changing Environment,"
STICERD - Theoretical Economics Paper Series
333, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
- K. Schlag, 2010.
"Why Imitate, and if so, How? Exploring a Model of Social Evolution,"
Levine's Working Paper Archive
454, David K. Levine.
- Schlag, Karl H., 1994. "Why Imitate, and if so, How? Exploring a Model of Social Evolution," Discussion Paper Serie B 296, University of Bonn, Germany.
- Boylan, Richard T., 1992. "Laws of large numbers for dynamical systems with randomly matched individuals," Journal of Economic Theory, Elsevier, vol. 57(2), pages 473-504, August.
- Smith, L. & Sorensen, P., 1996.
"Pathological Outcomes of Observational Learning,"
115, Economics Group, Nuffield College, University of Oxford.
- Abhijit V. Banerjee, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, Oxford University Press, vol. 107(3), pages 797-817.
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