A mechanism implements a social choice correspondence f in mixed Nash equilibrium if at any preference profile, the set of all pure and mixed Nash equilibrium outcomes coincides with the set of f-optimal alternatives at that preference profile. This definition generalizes Maskin’s definition...

Under some conditions, parameterized games with strategic substitutes exhibit monotone comparative statics of equilibria. These conditions relate to a tradeoff between a direct parameter effect and an opposing, indirect strategic substitute effect. If the indirect effect does not dominate the...

This paper outlines how the theory of contests is applied to professional team sports leagues. In the first part, we present the traditional Tullock contest and explain some basic properties of the equilibrium. We will then extend this RePEc/iso contest to a two-period model in order to analyze...

Fighting collusion has long been a challenge in organizations, whilst favoritism in organizations has long been attacked as one of the most important sources of workplace conflicts. This paper links the phenomena of collusion and favoritism together which seem to be irrelevant. We show that...

I study strategic information transmission when biases are uncertain. A perfectly informed expert advises a decision maker. The expert has biases with direction unknown to the decision maker. I show that all equilibria are of partitional form as identified by Crawford and Sobel (1982). It never...

We study incentive issues related to two-sided one-to-one stable matching problem after weakening the notion of strategy-proofness to Ordinal Bayesian Incentive Compatibility (OBIC). Under OBIC, truthtelling is required to maximize the expected utility of every agent, expected utility being...

The study of evolutionary dynamics was so far mainly restricted to finite strategy spaces. In this paper we show that this unsatisfying restriction is unnecessary. We specify a simple condition under which the continuous time replicator dynamics are well defined for the case of infinte strategy...

Mismatches typically arise because of information problems in markets. This paper discusses the possibility of mismatching in partnerships focussing on strategic mismatches that cannot be explained by information problems. It is shown that due to market competition sometimes players can profit...