International politics have been handled by a growing number of international regimes, in extended issue areas such as international economy, security, migration, or the environment. While these regimes were initially meant to address specific issues, their scope have been extended, creating what has been described as "regime complex", "regime interplay", or "overlapping regimes". As a consequence, human rights issues are discussed at the WTO, climate change at the IMF, and gender at the Security Council. The 2010 REPI Workshop will explore the causes and consequences of issue-linkages and regime-complexes.