Party performance in state and federal elections is highly interdependent. Federal elections impact regional voting dynamics and vice versa (electoral externalities). We quantify the extent of simultaneous electoral externalities between two layers of government. We apply vector autoregressions...

Spatial inequalities in publicly provided goods such as health care facilities have substantial socio-economic effects. Little is known, however, as to why publicly provided goods diverge among urban and rural regions. We exploit narrow parliamentary majorities in German states between 1950 and...

I present the first database of historical local population figures for all Germany. The German Local Population Database (GPOP) includes total population in 1871, 1910, 1939, 1946, 1961, 1987, 1996, 2011, and 2019 for the universe of all German municipalities, counties, and states at consistent...

We examine how populist governments influence political culture and economic outcomes. Some Austrian communities are governed by far-right populist mayors, directly elected by a majority of voters. We exploit close elections and find that the electorate becomes more polarized under populist...

Does social media or offline social cohesion overcome collective action problems more effectively when both types of networks are prevalent? We investigate non-violent protests against a place-based economic reform in Austria—a country where one in two citizens uses Facebook but also one in...

Why do public policies change little over time in individual places, sometimes for centuries? We investigate different mechanisms for policy persistence. Several city mayors serving in democratic Weimar Germany were expelled by the Nazis in 1933, but re-installed by the Allies after World War...

Does social capital always promote solidarity and democracy, or are social networks such as sports clubs also vulnerable to populism? We exploit quasi-experimental variation in sports club membership in German cities. Sports clubs are booming in cities with successful soccer teams which pass the...

Can public infrastructure help regions to mitigate large shocks? We examine how hospital infrastructure contributes to regional resilience in the event of serious health emergencies. During the 1918 Spanish flu pandemic, four out of every 1,000 Germans died. We find lower influenza mortality...

Voter turnout has declined in many industrialized countries, raising the question of whether electoral institutions increase voter turnout. We exploit an electoral reform in the Austrian state of Burgenland as a natural experiment to identify the causal effect of opening hours of polling...

How do staying minorities that evade ethnic cleansing integrate into re-settled communities? After World War Two, three million ethnic Germans were expelled from Czechoslovakia’s Sudetenland, but some were allowed to stay, many of them left-leaning anti-fascists. We study quasi-experimental...