Daniel Nielson is Professor and Associate Chair in the Department of Political Science at Brigham Young University. He is a founder and principal investigator of AidData. He received his PhD in international affairs from University of California – San Diego in 1997. He has been a visiting scholar at Duke University, the College of William & Mary, and the Centro de Investigación y Docencia Economicas (CIDE) in Mexico. He has been a principal investigator on major grants from the U.S. National Science Foundation, the William and Flora Hewlett Foundation, the Bill and Melinda Gates Foundation, and USAID. His scholarship focuses on international development, foreign aid, international organizations, and international field experiments. He is co-author of Global Shell Games: Experiments in Transnational Relations, Crime and Terrorism and co-editor of Delegation and Agency in International Organizations, both published by Cambridge University Press. He has also authored articles in the American Journal of Political Science, International Organization, World Development, Comparative Political Studies, and International Studies Quarterly, among other journals.