We construct a set of indicators to measure the policy-making role of the European Union (European Council, Parliament, Commission, Court of Justice, etc.), in a selected number of policy domains. Our goal is to examine the division of prerogatives between European institutions and national...

We model an international union as a group of countries deciding together the provision of certain public goods and policies because of spillovers. The countries are heterogeneous either in preferences and/or in economic fundamentals. The trade-off between the benefits of coordination and the...

We model an international union as a group of countries deciding together on the provision of public goods or policies that generate spillovers across members. The trade-off between benefits of coordination and loss of independent policy-making endogenously determines size, composition and scope...