How does an increase in group size affect individual welfare in the presence of Olson's group size paradox? Under the standard approaches to modeling the group size paradox, individual welfare will decrease as the size of the group increases. However, this may not be true if we apply the group...

The Hirshleifer model of conflict is used to argue that without voluntary action to increase human security, the state may have extensive opportunities and incentives to increase the risk of conflict in the many poor countries where central governments provide local public goods. Metaphorically,...

We study the role of inter-group differences in the emergence of conflict. In our setting, two groups compete for the right to allocate societys resources, and we allow for costly intergroup mobility. The winning group offers an allocation, that the opposition can either accept, or reject and...

We study the role of inter-group differences in the emergence of conflict. In our setting, two groups compete for the right to allocate society's resources, and we allow for costly inter-group mobility. The winning group offers an allocation, that the opposition can either accept, or reject and...

A government desiring support for its policy reform program, without coercion, behaves as if it faces a political constraint. Citizen support depends on the estimate, by at least some minimum proportion of the population, that the program will succeed and the outcome will be in their individual...

Many policies addressing global climate change revolve around the implementation of mitigation and adaptation strategies. We experimentally examine subjects? choices in a climate change game where subjects are put into groups where they face a potential damage and have the choice to invest...

We study the long-run stochastic stability properties of volunteering strategies in finite populations. We allow for mixed strategies, characterized by the probability that a player may not volunteer. A pairwise comparison of evolutionary strategies shows that the strategy with a lower...

This paper focuses on the relationship between public action and access to public goods. It begins by developing a simple model to capture the various mechanisms that are discussed in the theoretical literature on collective action. We use the model to illustrate the special assumptions embedded...

This paper argues that the underprovision of public goods can be partly explained by lower demand from Indigenous groups with high preferences for Indigenous identity and a high capacity for coordination. Examining the post-Mexican Revolution period (1920s-1950s), when the state used the first...

Societal theories of trade policy stress the importance of domestic interest groups, whereas statist theories focus on the effects of domestic institutions. Debates over the relative merits of these approaches have been fierce, but little systematic empirical research has been brought to bear on...