Recent events in Europe and Latin America have triggered serious debate over federalism. In response, political scientists have turned to the new institutionalism literature in the attempt to understand both the causes and the consequences of federal institutions. Continuing a long tradition in the scholarship on federalism, each of the books under review defines the term differently, reflecting a lack of conceptual agreement that may complicate the development of more robust theories.
Despite these conceptual differences, and their focus on very different time periods, the four books under review are alike in the emphasis they place on bargaining between national and subnational politicians. While this interest in bargaining clearly demonstrates the continuing impact of William Riker's work, much of the new research challenges parts of the Rikerian framework. As a measure of their quality, these four books will significantly shape the course of the emerging literature on comparative federalism, but future work should pay greater attention to interests, ideas, and international factors.