We study economic natural selection in classical oligopoly settings. When underlying pure strategies consist of a finite number of prices, convex monotonic dynamics always converge under a weak condition to the smallest price in the support of the initial state that exceeds marginal cost. When...

It is shown that the equilibrium notion of an evolutionary stable strategy (ESS) does have predictive power for standard models of Bertrand competition. This is in contrast to a recent claim by Qin and Stuart (1997). The claim is based on the observation that the solution concept ESS behaves...

This paper provides sufficient and partially necessary conditions for the equivalence of Nash and evolutionary equilibrium in symmetric games played by finite populations. The focus is on symmetric equilibria in pure strategies. The conditions are based on properties of the payoff function that...

This paper studies welfare consequences of consumer-side market transparency with endogenous entry of firms. Different from most studies, we consider the unique symmetric entry equilibrium, which is in mixed strategies. We identify two effects of market transparency on welfare: a competition...

We study optimal incentive contracts offered to teams where team members feel a social pressure to exert similar effort levels. The team consists of two groups of agents differing in their productivity. We characterize first best and the equilibrium under agency. Regarding economic incentives,...

We study rent-seeking contests, where the set of players contains both players with independent preferences and players with interdependent preferences. It turns out that the latter experience a strategic advantage in general two-player contests and in n-player-contests with non-increasing...

We analyze the dynamic interaction between imitators and optimizers in a changing world. To this end, we put forward a symmetric duopoly game of strategic substitutes where players interact repeatedly in a world of demand- and cost-uncertainty. If the environment changes every period, the...

We examine an evolutionary model of equilibrium selection, where all individuals interact w ith each other, recurrently playing a strictly supermodular game. Individuals play (myopic)\best responses to the current population profile, occasionally they pick an arbitrary strategy at random. To...

Investigating the strategic advantage of negatively interdependent preferences in action monotonic games, we derive characterizing conditions both for general action monotonic games and for the subclass of action monotonic games with spillovers. Examples demonstrate the generality of our...