How effective are all those billions paid out by the Commission for the Lisbon process in the individual Member States? We apply regression analysis to measure the long-term structural budget problem of the European Union, often called "revenue problem," estimating which rich countries are above...

We critically evaluate the empirical basis for the so-called resource curse and find that, despite the topic’s popularity in economics and political science research, this apparent paradox is a red herring. The most commonly used measure of ‘resource abundance’ can be more usefully...

We analyze the determinants of the origin of domestic and international terrorism in a large panel data set of 159 countries spanning from 1970 to 2007. We show that terror increases with GDP per capita, a higher POLITY score measuring a more open and competitive political system and experiences...

We study changes in the form of government as an example of endogenously determined constitutions. For a sample of 202 countries over the period 1950-2006, we find that most changes are relatively small and roughly equally likely to be either in the direction of more parliamentarian or more...