This paper studies the evolution of political institutions in the face of conflict. We examine institutional reform in a class of pivotal mechanisms -- institutions that behave as if the resulting policy were determined by a "pivotal" decision maker drawn from the potential population of...

This paper examines existence of Markov equilibria in the class of dynamic political games (DPGs). DPGs are dynamic games in which political institutions are endogenously determined each period. The process of change is both recursive and instrumental: the rules for political aggregation at date...

We develop a model that incorporates both spatial heterogeneity and adverse selection to examine the features of optimal prices paid by an agency purchasing a bundle of services on behalf of consumers with different underlying characteristics. Service bundles are two dimensional, and to be...

How far is the US social insurance system from an efficient system? We answer this question within a model where agents receive idiosyncratic, labor-productivity shocks that are privately observed. When social security and income taxation comprise the social insurance system, the maximum...

Why would a political elite voluntarily dilute its political power by extending the franchise? This paper develops a dynamic recursive framework for studying voter enfranchisement. We study properties of dynamic enfranchisement games, dynamic games in which political rights evolve over time....

We consider the problem of sequential search when the decision to stop searching is made by a committee. We show that a symmetric stationary equilibrium exists and is unique given that the distribution of rewards is log concave. Committee members set a lower acceptance threshold than do...

We model dynamic mechanisms for a global commons. Countries benefit from both consumption and aggregate conservation of an open access resource. A country's relative value of consumption-to-conservation is privately observed and evolves stochastically. An optimal quota maximizes world welfare...

This paper formulates a dynamic model of global carbon consumption in the absence of an effective international agreement. Each period, countries extract carbon from the global ecosystem. A country's output depends both on its carbon usage and on the ecosystem ("stored carbon"). The desired mix...

Between 1995 and 2008, the European Union and the United States raised environmental standards and concurrently experienced important reductions in emissions from manufacturing despite a rise in output. Levinson (2009) finds that the offshoring of polluting industries to countries with lower...

We develop and estimate an household search model to evaluate if ignoring that labor market decisions are taken at the household level - as usually done in search models of the labor market - has relevant empirical consequences. We evaluate the impact of this potential mispecification error by...