Noise Matters in Heterogeneous Populations
The concept of boundedly rational agents in evolutionary game theory has succeeded in producing clear results when traditional methodology was failing. However the majority of such papers have obtained their results when this bounded rationality itself vanishes. This paper considers whether such results are actually a good reflection of a population whose bounded rationality is small, but non-vanishing. We also look at a heterogeneous population who play a co-ordination game but have conflicting interests, and investigate the stability of an equilibria where two strategies co-exist together. Firstly, I find that results using the standard vanishing noise approach can be very different from those obtained when noise is small but persistent. Secondly, when the results differ it is the non-vanishing noise approach which selects the co-existence equilibria. As recent economic and psychology studies highlight the irrationality of their human subjects, this paper seeks to further demonstrate that the literature needs to concentrate more on the analysis of truly noisy populations.
|Date of creation:||27 Aug 2007|
|Date of revision:|
|Contact details of provider:|| Postal: 31 Buccleuch Place, EH8 9JT, Edinburgh|
Web page: http://www.econ.ed.ac.uk/
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Glenn Ellison, 2000. "Basins of Attraction, Long-Run Stochastic Stability, and the Speed of Step-by-Step Evolution," Review of Economic Studies, Oxford University Press, vol. 67(1), pages 17-45.
- Glen Ellison, 2010.
"Learning, Local Interaction, and Coordination,"
Levine's Working Paper Archive
391, David K. Levine.
- Myatt, David P. & Wallace, Chris C., 2004.
"Adaptive play by idiosyncratic agents,"
Games and Economic Behavior,
Elsevier, vol. 48(1), pages 124-138, July.
- Thomas Norman, 2003.
"The Evolution of Coordination under Inertia,"
Economics Series Working Papers
2003-W06, University of Oxford, Department of Economics.
- Robson, Arthur J. & Vega-Redondo, Fernando, 1996.
"Efficient Equilibrium Selection in Evolutionary Games with Random Matching,"
Journal of Economic Theory,
Elsevier, vol. 70(1), pages 65-92, July.
- Arthur J Robson & Fernando Vega-Redondo, 1999. "Efficient Equilibrium Selection in Evolutionary Games with Random Matching," Levine's Working Paper Archive 2112, David K. Levine.
When requesting a correction, please mention this item's handle: RePEc:edn:esedps:169. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Gina Reddie)
If references are entirely missing, you can add them using this form.