Coalition governments play a very important role in democratic politics. In most parliamentary democracies, there is no single party that wins the majority of seats in the legislature. As a result, two or more parties come together and form a coalition government. Coalition parties join forces for the purpose of entering government, but they pursue different policy objectives and compete for offices and votes which creates conflicts during the life-cycle of coalition governments. In this seminar, we will therefore analyze the formation, the governance and the survival of coalition governments in Western and Eastern Europe. After clarifying the basic concepts of coalition research, we will explore the formative stage of coalition governments by analyzing which coalitions are likely to form and how payoffs are allocated across coalition partners. The next part of the seminar is devoted to coalition governance, that is exploring how coalition cabinets actually work during the legislative term when the real business of government takes place. The final part of the seminar deals with cabinet duration by investigating the determinants of cabinet survival in Europe. Students will get an insight into the theoretical debate on coalition formation, coalition governance and coalition survival, they will learn about methodological challenges in the field and they will get an overview of latest empirical studies investigating coalition governments in Western and Eastern Europe.