The splintering of the Mercosur following the Brazilian devaluation in earl
y 1999 has given way to an important re-crafting of the regional vision and
a significant expansion of the scope of the regional project. This article
contends that these trends can best be understood as coalescing into a new
(and nascent) form of regionalist governance in the Southern Cone, in whic
h the Mercosur is reconfigured as a vehicle for a new set of developmentali
st and strategic objectives. This emerging form of regionalist governance i
s both causative and indicative of a new political economy both of the subr
egion and of the wider region of the Americas, and reflective of the crysta
llisation of a new political economy of development.