Polities differ in the extent to which political parties can pre-commit to carry out promised policy actions if they take power. Commitment problems may arise due to a divergence between the ex ante incentives facing national parties that seek to capture control of the legislature and the ex...

The paper develops a political economy model to assess the interplay between political party formation and an environmental policy dimension viewed as secondary to the redistributive dimension. We define being a secondary issue in terms of the intensity of preferences over this issue rather than...

We develop a model where voters differ in their exogenous income and in their ideological views regarding what we call 'racism'. Electoral competition, modelled à la Levy (2004), takes place between (one or several) parties which propose platforms consisting of both an ideological and an...

Politics must tackle multiple issues at once. In a first-best world, political competition constrains parties to prioritize issues according to the voters' true concerns. In the real world, the opposite also happens: parties manipulate voter priorities by emphasizing issues selectively during...

Different electoral rules provide different incentives for parties competing for votes to adopt emerging issues. As a result, new societal issues will be integrated at different speeds into the political arena, and ultimately, into policy. In order to study this question formally, I propose an...

We study and compare equilibrium platforms in models of one-dimensional electoral competition with two and four policy-motivated parties. We first analyse the plurality game, where the party that gets the most votes is elected and implements its proposed platform. Restrictions on the set of...

How do foreign interests influence the policy determination process? What are the welfare implications of such foreign influence? In this paper we develop a model of foreign influence and apply it to the study of optimal tariffs. We develop a two-country voting model of electoral competition,...

We experimentally investigate information aggregation through majority voting when some voters are biased. In such situations, majority voting can have a “dark side”, i.e. result in groups making choices inferior to those made by individuals acting alone. We develop a model to predict how...

This paper presents results from a laboratory experiment on the channels through which different law enforcement strategies deter cartel formation. With leniency policies offering immunity to the first reporting party a high fine is the main determinant of deterrence, having a strong effect even...

We use experiments to analyze what type of communication is most effective in achieving cooperation in a simple collusion game. Consistent with the existing literature on communication and collusion, even minimal communication leads to a short run increase in collusion. However, in a limited...