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Optimism and Pessimism in Games

Jürgen Eichberger and David Kelsey

No 605, Discussion Papers from University of Exeter, Department of Economics

Abstract: This paper considers the impact of ambiguity in strategic situations. It extends the earlier literature by allowing for optimistic responses to ambiguity. Ambiguity is modelled by CEU preferences. We study comparative statics of changes in ambiguity-attitude in games with strategic complements or substitutes. This gives a precise statement of the impact of ambiguity on economic behaviour. We also the possibility that players may be overconfident in the sense of over-estimating the probability of favourable outcomes. This has a similar effect of increasing equilibrium strategies in games of strategic complements, Finally we consider RDEU preferences.

Keywords: Ambiguity in games; overcon?fidence; strategic complementarity; optimism; RDEU. (search for similar items in EconPapers)
JEL-codes: C72 D81 (search for similar items in EconPapers)
Date: 2006
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http://people.exeter.ac.uk/RePEc/dpapers/DP0605.pdf (application/pdf)

Related works:
Journal Article: OPTIMISM AND PESSIMISM IN GAMES (2014) Downloads
Working Paper: Optimism and Pessimism in Games (2009) Downloads
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