Political parties are critical to Latin American democracy. This was demonstrated in Peru, where an atomized, candidate-centered party system developed after Alberto Fujimori's 1992 presidential self-coup. Party system decomposition weakened the democratic opposition against an increasingly authoritarian regime. Since the regime collapsed in 2000, prospects for party rebuilding have been mixed. Structural changes, such as the growth of the informal sector and the spread of mass media technologies, have weakened politicians' incentive to build parties. Although these changes did not cause the collapse of the party system, they may inhibit its reconstruction.

Considering its strong, highly institutionalized two-party system, Venezuela was surely one of the least likely countries in Latin America to experience a party system breakdown and populist resurgence. That traditional party system nevertheless was founded on a mixture of corporatist and clientelist linkages to social actors that were unable to withstand the secular decline of the oil economy and several aborted attempts at market liberalization. Successive administrations led by the dominant parties failed to reverse the economic slide, with devastating consequences for the party system as a whole. The party system ultimately rested on insecure structural foundations; and when its social moorings crumbled in the 1990s, the populist movement of Hugo Chávez emerged to fill the political void. This populist resurgence both capitalized on and accelerated the institutional decomposition of the old order.

Although powerful states have the ability to dominate the international system to achieve their policy preferences, such dominance has limits in the Organization of American States. Even though the United States, its most powerful member state, has considerable influence over OAS actions, institutional factors also affect decisionmaking and produce more varied outcomes than one might anticipate. Adapting three different perspectives from organizational sociology, this study constructs an analytical framework to explore the impact of structural, normative, internal relational, and environmental factors on the level of U.S. influence in the OAS. Four hypotheses are tested on 30 cases of regional conflict management from 1948 to 2002. The organizational variables also reveal incentives for the United States to act multilaterally rather than unilaterally in most instances in the post-Cold War era.

Costa Ricans have worked hard to weave the norms and principles of sustainable development into their nation's environmental policies, especially with respect to natural renewable resources, such as the forest. As a result, the nation is known as a leader in innovative environmental initiatives. But sustainable development is a complex, evolving concept. This paper analyzes how the emphasis on biodiversity conservation during the 1990s and early 2000s has, rhetoric notwithstanding, neglected the social equality, or livelihood, component of sustainable development. This trend stands in sharp contrast to earlier periods, when decisionmakers crafted policies and institutions that supported social ecology. The article concludes with a few observations on building political will to revive the grassroots development component of sustainable development.