Objectives: The article analyzes the existence of bilateral travel restrictions between European countries during the second wave of the Sars-CoV-2 pandemic. The paper tests three sets of theoretically derived predictions, which follow epidemiological, economic, and political logics.Method: We...

There is large variation across countries of origin in the gender composition of migrants coming to Germany. We argue that women’s economic rights in developing countries of origin have three effects on their migration prospects to a place like Germany that is far away and difficult to reach....

This paper follows European countries as they struggled through the first wave of the Sars-CoV-2 pandemic. We analyze when countries were confronted with the virus, how long it took until the number of new infections peaked and at what level of infections that peak was achieved via social...

This paper analyzes the properties of a computational model of multi-party competition in two and three policy dimensions. We present four substantive results: Firstly, centrifugal incentives prevent rational parties from moving to the mean of voters' preference distributions. Secondly, the...

Most combatants in armed conflict are men, so naturally men are the major direct victims of military operations. Yet, armed conflicts have important indirect negative consequences on agriculture, infrastructure, public health provision and social order. These indirect consequences are often...