I examine whether transitory events can tip the scales against authoritarian regimes and lead to persistent democratization. I think of situations where this is a possibility as democratic tipping points. The transitory events I focus on are rainfall shocks in the most agricultural countries in...

Exploiting a novel geo-referenced data set of population diversity across ethnic groups, this research advances the hypothesis and empirically establishes that variation in population diversity across human societies, as determined in the course of the exodus of human from Africa tens of...

We analyze the influence of IMF and World Bank programs on political regime transitions. We develop an extended version of Acemoglu and Robinson's (American Economic Review 91, 2001) model of political transitions to show how the anticipation of new loans from in-ternational financial...

Proprietary rule, whereby the state is owned by a ruler who maximizes tax revenues minus the costs of governing, is a useful ideal type that describes many of the states that have ever existed. The study of proprietary rule and its public finance, however, is comparatively scarce. I argue that...

We use a new dataset on non-resource GDP to examine the impact of commodity price volatility on economic growth in a panel of up to 158 countries during the period 1970-2007. Our main finding is that commodity price volatility leads to a significant increase in non-resource GDP growth in...

We study the political economy of the environment in autocratic, weak and strong democracies when individuals can either mitigate the health consequences of domestic pollution privately or reduce pollution collectively through public policy. The setting is that of a small open economy in which...

This paper utilizes data on the presence of prominent individuals - that is, those with political (e.g., Members of Parliament) and aristocratic titles (e.g., lords) - on the boards of directors of English and Welsh banks from 1879-1909 to investigate whether the appointment of well-connected...