Signature requirements are often used as hurdles to prevent overuse of direct democratic instruments such as citizen initiatives. We evaluate the causal effect of lowering signature requirements on the number of observed citizen initiative petitions. Based on municipal-level data for Germany, we...

We examine moonlighting by politicians in Germany. In July 2007, the German Supreme Court adjudicated that members of parliament (MPs) have to publish details of their outside earnings. Using panel data models, we investigate how outside earnings are correlated with absence and parliamentary...

This paper surveys the state and evolution of GDP per capita in 281 regions of OECD countries for the time period 1995 – 2013. It puts a special focus on the disparities between the regions. These can be substantial: In 2013, GDP per capita of the least and most developed region varied by a...

Abstract: Warum sind Immobilien in bestimmten Gemeinden teurer als in anderen und welche lokalen Einflussfaktoren bestimmen die Immobilienpreise? Unterscheiden sich Immobilienpreise zwischen Gemeinden aufgrund von unterschiedlichen lokalen Steuern und haben derartige Preisunterschiede über...

This paper explores the causal relationship between vote outcomes in different elections. We ask: (1) Does the partisan identity of the mayor influence the voter's decision in subsequent town council elections? (2) Do voters condition their vote for the mayor on the result of the last council...

Do district incumbents in an election have an advantage, and if so, do these advantages depend on which party is in government? We estimate the incumbency effect for the direct district candidates in German federal and state elections using a regression discontinuity design (RDD). When studying...