After the formation of the North American Free Trade Agreement (NAFTA) in 1994, enthusiasts of regional integration in North America turned their attention to “deeper” forms of integration, especially a customs union or monetary union.1 Interest in proposals for deeper integration peaked...

Recent studies have compared labor losses in import-competing industries with the costs of protection and found that those losses are not large enough to justify trade restraints. This study develops a new technique for estimating the costs and benefits of protection and provides a complete...