His research uses an international and comparative perspective to study the impact and availability of educational resources—particularly high-quality teachers—among economically disadvantaged children. His recent publications include Teacher distribution in developing countries: Teachers of marginalized students in India, Mexico, and Tanzania, published by Palgrave Macmillan (2016, with Amita Chudgar) and “A vanishing rural school advantage? Changing urban/rural student achievement differences in Latin America and the Caribbean,” in the Comparative Education Review (2016, with Loris P. Fagioli).