In economics and other social sciences, complex processes are often represented by numerical models of reality which more or less well reflect behavioral relationships and interactions. Such attempts are the subject of a lecture course 'Mathematical Theory of Democracy' by the author at the...

This paper provides new evidence on the effect of immigration on election outcomes. Our analysis makes use of data on city districts in Hamburg, Germany, during a period of substantial inflows of immigrants and asylum seekers. We find significant and robust effects for changes in foreigner...

In federal countries, competence for policy matters is often shared between various levels of government. As only overall outcomes are observed, this might blur accountability by decreasing voters' ability to infer information about the performance of their leaders. In this article, we analyse...

There is a large body of literature analyzing the relationship between objective economic conditions and voting behavior, but there is very little evidence of how perceived economic insecurity impacts on political preferences. Using seventeen years of household panel data from the German...

We analyze the relative importance of party ideology and rents from office in the formation of coalitions in a parliamentary democracy. In equilibrium, the types of coalitions that are formed may be minimal winning, minority or surplus and they may be ideologically `disconnected'. The coalitions...

We study the political opinions of Swedish social scientists in seven disciplines. A survey was sent to 4,301 academics at 25 colleges and universities, which makes the coverage of the disciplines included more or less comprehensive. When it comes to party sympathies there are 1.3 academics on...