Coarse Thinking and Collusion in Bertrand Duopoly with Increasing Marginal Costs
Mullainathan, Schwartzstein, & Shleifer [Quarterly Journal of Economics, May 2008] put forward a model of coarse thinking. The essential idea behind coarse thinking is that agents put situations into categories and then apply the same model of inference to all situations in a given category. We extend the argument to strategies in a game-theoretic setting and propose the following: Agents split the choice-space into categories in comparison with salient choices and then choose each option in a given category with equal probability. We provide an alternative explanation for the puzzling results obtained in a Bertrand competition experiment as reported in Abbink & Brandts [Games and Economic Behavior, 63, 2008]
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- Abbink, Klaus & Brandts, Jordi, 2008. "24. Pricing in Bertrand competition with increasing marginal costs," Games and Economic Behavior, Elsevier, vol. 63(1), pages 1-31, May.
- Sendhil Mullainathan & Joshua Schwartzstein & Andrei Shleifer, 2008.
"Coarse Thinking and Persuasion,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 123(2), pages 577-619.
- Shleifer, Andrei & Mullainathan, Sendhil & Schwartzstein, Joshua, 2008. "Coarse Thinking and Persuasion," Scholarly Articles 11022284, Harvard University Department of Economics.
- Sendhil Mullainathan & Joshua Schwartzstein & Andrei Shleifer, 2006. "Coarse Thinking and Persuasion," NBER Working Papers 12720, National Bureau of Economic Research, Inc.
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