We consider preference evolution in a class of conflict models with finite populations. We show that whereas aggregate conflict effort is always the same in evolutionary equilibrium, larger populations have greater individual subjective costs of conflict effort.

We consider two-player, perfectly discriminatory, common-value contests (or all-pay auctions), in which one player knows the value of the contested object with certainty, and the other knows only its prior distribution. We show, among other things, that in equilibrium the players win with equal...