We examine debt-sensitive majority rules. According to such a rule, the higher a planned public debt, the higher the parliamentary majority required to approve it. In a two-period model we compare debt-sensitive majority rules with the simple majority rule when individuals differ regarding their...

Using a model of probabilistic voting, we analyse the impact of aid on the political equilibrium in the recipient country or region. We consider two kinds of politicians: the benevolent one is interested in promoting social welfare whereas the other one is clientelistic, his only goal being to...

The ability of groups to implement efficiency-enhancing institutions is emerging as a central theme of research in economics. This paper explores voting on a scheme of intergroup competition which facilitates cooperation in a social dilemma situation. Experimental results show that the...

While objective news coverage is vital to democracy, media bias can seriously distort collective decisions. This Paper develops a voting model where citizens are uncertain about the welfare effects induced by alternative policy options and derive information about those effects from the mass...

Across African countries, prevention policies are unrelated to the prevalence of HIV/AIDS and, even in countries in which they were successful, these policies are often unstable or reversed. To explain these two puzzles, we propose a simple political economy model that examines how prevention...