We study political determinants of municipality amalgamations during a boundary reform in the German state of Brandenburg, which reduced the number of municipalities from 1,489 to 421. The analysis is conducted using data on the political decision makers as well as fiscal and socio-economic...

Do incumbents in an election have an advantage, and if so, are these advantages heterogeneous across parties or government and opposition? We first present a theoretical discussion on the possible heterogeneity of incumbency effects in a pure two-party system. Then, we estimate the incumbency...

This paper provides empirical evidence on the party incumbency advantage in mayoral elections in Germany. Using a regression discontinuity design on a data set of about 25,000 elections, I estimate a causal incumbency effect of 38-40 percentage points in the probability of winning the next mayor...

Theoretical work based on social identity theory and in-group favoritism predicts that increased population diversity (e.g., due to immigration) reduces support for redistributive public policies. In this article, we add to the empirical literature testing this prediction in three ways. First,...

This paper estimates the effect of political power on tax policies in municipal councils under a proportional election system. The main challenge in estimating the causal effect of parties on policy is to isolate the effect of power from underlying voter preferences and the selection effect of...

The number of parties in government is usually considered to increase spending. We show that this is not necessarily the case. Using a new method to detect close election outcomes in multi-party systems, we isolate truly exogenous variation in the type of government. With data from...

This paper analyses the consequences of the planned enlargement on the EU budget for the years 2007 and 2013. It concentrates on the EU's Common Agricultural Policy and Structural Policy and calculates the possible fiscal consequences of enlarging the EU for various policy scenarios. Enlarging...

This paper models conflictual interaction between a European state and a domestic dissident immigrant minority group, Muslims say, some of whom may resort to acts of terrorism. Here, identity is crucial and provides the micro-foundations of dissident behaviour by solving the collective action...

This paper focuses on two areas of security concern for the European Union: terrorism and international crime. I present a model of game-theoretic interaction between a European state and a domestic dissident group, who, on occasion, may resort to acts of terrorism. Here, identity is crucial to...

Signature requirements are often used as hurdles to prevent overuse of public referenda. We evaluate the causal effect of lowering signature requirements on the number of observed citizen initiatives. Based on municipality-level data for Germany, we make use of legislative changes at specific...