He has also worked as a consultant for the International Food and Policy Research Institute (IFPRI), the United Nations Development Program (UNDP), the United Nations Economic Commission for Latin America and the Caribbean (ECLAC), and the Central American Institute of Fiscal Studies (ICEFI). Currently, his research projects focus on the provision of public services such as drinking water, sanitation, education, health care, and agricultural services. His research has been published in several academic and policy journals. Dr. Vásquez has implemented household and community surveys in Guatemala, Mexico, and Nicaragua.