The welfare effects of PTAs are most directly linked to changes in trade prices, i.e., the terms of trade. This paper employs a simple strategic pricing game in segmented markets to measure the effects of MERCOSUR on the pricing of 'non-member' exports to the region. Working with detailed data...

Many commentators purport to use the Kemp-Wan Theorem to discuss the effects of regional integration schemes on non-member countries, and to operationalize the theorem in terms of the share of member countries' imports from non-members. This paper shows that Kemp and Wan (1976) say nothing about...