International trade liberalization historically has taken many organizational forms--unilateral, bilateral, minilateral, and multilateral. Given the proliferation of normative views about which of these should be pursued, economists and political scientists have devoted surprisingly little attention to the reasons for the observed variation in the chosen forms. This book is the first to develop a single theoretical framework to account for past liberalization practices and also to anticipate ongoing changes in the international organization of trade policy. Growing out of a...