Subnational disparities and center-region relations are increasingly important issues in both the development economics literature and East Asian policy circles. Almost all developing countries in East Asia are actively decentralizing power and resources from the center. Analytically, there is growing interest in spatial economics, arising out of the fusion of economics and geography. This paper examines these issues with reference to Indonesia and the Philippines. Both countries are well suited to such a study: they are the two largest archipelagic nations in the world, they both feature great subnational diversity, and they have both adopted major decentralization programs, in similar circumstances. We conclude that, in aggregate, there have been no major changes in regional inequality in either country, although this conclusion is sensitive to the selection of economic indicators. In general, the regions that are the best connected to the global economy have grown more rapidly.