Do Intergovernmental Institutions Matter? The Case of Water Diversion Regulation in the Great Lakes Basin

This article explores the role of intergovernmental institutions in domestic policy formation by investigating the extent to which these institutions substantively influence domestic policy choices. It does so by utilizing a rational choice institutionalist approach that focuses on the constraints and incentives created by intergovernmental rules and how these constraints and incentives do or do not influence eventual government policy decisions. The veto player concept is used to highlight some of the most important constraints and incentives, as well as to differentiate among various types of intergovernmental institutions. The cases examined involve water diversion regulation in the Great Lakes Basin and the three distinct intergovernmental institutions that have been created in this area: the International Boundary Waters Treaty, the Great Lakes Charter, and the Water Resources Development Act. The evidence suggests that intergovernmental institutions can matter in the development of domestic policy, but only those that include veto players as part of their institutional design.