In the Center for Global Development’s (CGD) “Global Health Policy” blog, Amanda Glassman, director of global health policy and a senior fellow at CGD, and Yuna Sakuma, a CGD research assistant, write about the AidData Research Consortium (ARC), a research collaborative based at William & Mary, that “will compile sub-national spending data from both public and aid sources, make data available to the public and researchers, and facilitate a consortium of researchers — including CGD researchers — working on policy-relevant issues. … AidData’s work is a step in the right direction for development and aid effectiveness, particularly in the health sector where coordination efforts can be stymied by lack of subnational data on spending and impact…” (1/14).