After lying dormant for two decades, regional integration is on the rise. Recent initiatives suggest that the world trading system may be moving toward three trading blocs clustered around Japan, the European Community, and the United States. Some view this development as a move toward a less...

Regional integration is on the rise again, despite its apparent failure among developing countries in the past. The paper first surveys the ambiguous economics of customs unions. We emphasize that the traditional dichotomy between `trade creation' and `trade diversion' is not particularly...