The G20 has produced mixed results. After initial high hopes and some success, negotiations within the G20 forum have slowed, progress is less visible and disagreement rather than agreement has come to the fore. Against this background, this paper revisits the basic economic and geopolitical...

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 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...