Mechanism design or implementation theory, which studies the design of institutions or mechanisms implementing collective decisions under different circumstances, has been a major research area in the last three decades. hannu Vartiainen's doctoral dissertation analyzes several issues in this...

The class of neighbour games is the intersection of the class of assignment games (cf. Shapley and Shubik (1972)) and the class of component additive games (cf. Curiel et al. (1994)). For assignment games and component additive games there exist polynomially bounded algorithms or order p4 for...

Multi-choice games and fuzzy games both deal with the situations where the players have more than two participants levels. Two values have been proposed for the multi-choice games: Hsiao-Raghavan (1993) and Nouweland et al. (1995). The former one depends on an arbitrarily given weight, and Hsia...

We extend Kohlberg and Mertens' (1986) structure theorem concerning the Nash equilibrium correspondence to show that its graph is not only homeomorphic to the underlying space of games but that it is also unknotted. This is then shown to have some basic consequences for dynamics whose rest...

Laboratory and field studies of time preference find that discount rates are much greater in the short-run than in the long-run. Hyperbolic discount functions capture this property. This paper solves the decision problem of a hyperbolic consumer who faces stochastic income and a borrowing...

This paper formalizes the relation between comparative statics and the out-of-equilibrium explanation for how a system evolves after a change in parameters.

We apply the stochastic evolutionary approach of equilibrium selection to macroeconomic models in which a complementarity at the macro level is present. These models often exhibit multile Pareto-ranked Nash equilibria , and the best response-correspondence of an individual increases with a...