This paper analyzes the impact of a group-size change on contributing incentives in repeated provision of pure public goods. We develop a model in which the group members interact repeatedly and might be temporarily constrained to contribute to the public goods production. We show that an...

In repeated normal-form (simultaneous-move) games, simple penal codes (Abreu,1986, 1988) permit an elegant characterization of the set of subgame-perfect outcomes. We show that the logic of simple penal codes fails in repeated extensive-form games. By means of examples, we identify two types of...