This article seeks to account for the seemingly erratic patterns of conflict and cooperation observed in MERCOSUR since 1995. It argues that the marked deterioration of trade and diplomatic relations between Argentina and Brazil in the late 1990s and early 2000s is best explained in reference to...

'New Regionalism' (NR) approaches have emphasized the qualitative differences between the more recent wave of regionalism and regional integration attempts in the post-World War II period. This article assesses the extent to which these claims to newness are empirically justified in the specific...