Published & Forthcoming Articles

"Cash Transfers Increase Trust in Local Government" (with Brian Holtemeyer and Katrina Kosec), World Development, 2019. 

"Bias in Patient Satisfaction Surveys: A Threat to Measuring Health Care Quality" (with Felipe Dunsch, Mario Macis, and Qiao Wang), BMJ Global Health, 2018. 

"Health Care Quality and Information Failure: Evidence from Nigeria" (with Anna Welander Tärneberg), Health Economics, 2017.

"Cash Transfers and Health: Evidence from Tanzania" (with Brian Holtemeyer and Katrina Kosec), World Bank Economic Review, 2017. Working paper; summary blog post.

Cash Transfers and Temptation Goods” (with Anna Popova), Economic Development and Cultural Change, 65(2), 2017. Working papersummary blog postRadically brief policy brief
"¿Qué funciona para mejorar el aprendizaje en países en desarrollo?" (with Anna Popova), Reformas y Políticas Educativas, September-December 2016.

"Cost-Effectiveness Analysis in Development: Accounting for Local Costs and Noisy Impacts" (with Anna Popova), World Development, January 2016. Working paper; Blog post.

"Health-care Worker Mortality and the Legacy of the Ebola Epidemic" (with Markus Goldstein & Anna Popova), The Lancet Global Health, 3(8), e430-e440, August 2015. Blog post in English | FrenchSupplementary appendixWorking paper (with more detailed methodology)

"West African Ebola crisis and orphans" (with Anna Popova), The Lancet, 22 February 2015. Blog postWorking paper (with more detailed methodology)

"Learning from Exemplary Practices in International Disaster Management: A Fresh Avenue to Inform U.S. Policy?" (with Melinda Moore, Horacio Trujillo, Brooke Stearns, and Ricardo Basurto-Davila), Journal of Homeland Security and Emergency Management, 6(1), 2009.

"Orphans and Schooling in Africa: A Longitudinal Analysis" (with Ted Miguel), Demography 44(1), February 2007, pp 35-57. 


Working Papers

"Working Conditions of Teachers in Low- and Middle-Income Countries" (with Fei Yuan), August 2018. [Available upon request.]

"Teacher Professional Development around the World: The Gap between Evidence and Practice" (with Anna Popova, Mary Breeding, and Violeta Arancibia), Policy Research Working Paper 8572, August 2018. 

"School Costs, Short-Run Participation, and Long-Run Outcomes: Evidence from Kenya" (with Muthoni Ngatia), Policy Research Working Paper 8421, April 2018.  

Media coverage: The Daily Beast

"Management, Supervision, and Health Care: A Field Experiment" (with Felipe Dunsch, Ezinne Eze-Ajoku, and Mario Macis), NBER Working Paper 23749 and IZA Discussion Paper 10967, August 2017. 

"Extending the School Day in Latin America and the Caribbean," (with Peter Holland & Pablo Alfaro), World Bank Policy Research Working Paper 7309, June 2015 [Updated October 2016]. Blog post

"Training Teachers on the Job: What works and How to Measure It" (with Anna Popova and Violeta Arancibia), World Bank Policy Research Working Paper 7834, September 2016.

Parental Human Capital and Effective School Management: Evidence from The Gambia,” (with Moussa Blimpo & Nathalie Lahire), World Bank Policy Research Working Paper 7238, April 2015. Blog post

The Permanent Input Hypothesis: The Case of Textbooks and (No) Student Learning in Sierra Leone” (with Shwetlena Sabarwal and Anastasia Marshak), World Bank Policy Research Working Paper 7021, September 2014. Blog post


Books & Reports

"Commentary: Learning at the Bottom of the Pyramid" (with Fei Yuan), in Learning at the Bottom of the Pyramid: Science, measurement, and policy in low-income countries, UNESCO, 2018.

development in Brazil" (with Attanasio et al), 3ie Impact Evaluation report 58, 2017.

"Skills for Africa Today and Africa Tomorrow" (with Omar Arias and Indhira Santos), in Africa's Pulse, no. 16, October 2017. 

World Development Report 2018: LEARNING to Realize Education's Promise, (with many co-authors), World Bank, 2017. 


"The Economic Impact of Ebola on Sub-Saharan Africa: Updated Estimates for 2015," (with many co-authors), World Bank, January 2015.

"The Economic Impact of the 2014 Ebola Epidemic: Short and Medium Term Estimates for West Africa," (with many co-authors), World Bank, November 2014 (formal printing of October report). Press release

"The Economic Impact of the 2014 Ebola Epidemic: Short and Medium Term Estimates for Guinea, Liberia, and Sierra Leone," (with many co-contributors), World Bank, September 2014. 

    Media coverage: L.A. Times (interview with me)

Community Based Conditional Cash Transfers in Tanzania: Results from a Randomized Trial” (with Stephanie Hausladen, Katrina Kosec, and Natasha Reese), World Bank, Washington DC, 2014.

    Media coverage: The Guardian (Tanzania)

Early Child Education: Making Programs Work for Brazil’s Most Important Generation” (with Katrina Kosec), World Bank, Washington DC, 2012. 

Achieving World Class Education in Brazil: The Next Agenda (with Barbara Bruns and Javier Luque), World Bank, Washington DC, 2011.

Brain Korea 21 Phase II: A New Evaluation Model” (with Somi Seong, Steven W. Popper, Charles A. Goldman, and Clifford A. Grammich), RAND Report MG-711-KRF, RAND, 2008.


Book Chapters

“Recruiting Better Teachers” (with Barbara Bruns, Javier Luque, Guillermo Toral, and Soledad de Gregorio), in Great Teachers: How to Raise Student Learning in Latin America and the Caribbean, World Bank, 2015.

“Grooming Great Teachers” (with Barbara Bruns, Javier Luque, Guillermo Toral, Noah Yarrow, and Soledad de Gregorio), in Great Teachers: How to Raise Student Learning in Latin America and the Caribbean, World Bank, 2015.


Permanent Working Papers

Prioritizing Educational Investments in Children in the Developing World” (with Arkadipta Ghosh), RAND Labor & Population Program Working Paper WR-578, 2008. 

“The Cost of Providing Antiretroviral Therapy in South Africa and Uganda” (with Julia Aledort, Brooke Stearns, Penninah Iutung, Glenn Wagner, and Gery Ryan), working paper.

The Spillover Impacts of Africa’s Orphan Crisis,” working paper, December 2005.

“Population Change and Human Development in Latin America,” with David Bloom, David Canning, Bryan Graham, Patrick Lynch, and Erin Murphy. Background paper prepared for the Inter-American Development Bank in connection with Economic and Social Progress in Latin America, 1999-2000 Report, 2000.