A major theory from social psychology claims that external threats can strengthen group identities and cooperation. This paper exploits the Russian invasion in Ukraine 2014 as a sudden increase in the perceived military threat for eastern European Union member states, in particular for the...

This paper explores the role of information transmission and misaligned interests across levels of government in explaining variation in the degree of decentralization across countries. Within a two-sided incomplete information principal-agent framework, it analyzes two alternative...

This paper explores the role of information transmission and misaligned interests across levels of government in explaining variation in the degree of decentralization across countries. Within a two-sided incomplete information principal-agent framework, it analyzes two alternative...

This paper explores the role of information transmission and misaligned interests across levels of government in explaining variation in the degree of decentralization across countries. Within a two-sided incomplete information principal-agent framework, it analyzes two alternative...

Although regional resources have been shown to influence secessionist conflicts in developing countries, their effect in established democracies has largely been neglected. We integrate regional resource value and inter-regional transfers in a model on the optimal size of nations, and show that...