Published and Forthcoming Papers
Flying Start? Long Term
Consequences of Maternal Time Investments in Children During
the First Year of Life (with Katrine Loken and Kjell Salvanes), forthcoming at Journal of Political Economy
Long Term Impacts of Compensatory Pre-School on Health
and Behavior: Evidence from Head Start (with Rita Ginja), forthcoming at American
Economic Journal: Economic Policy
Maternal Education, Home Environments and Child
Development (with Costas Meghir and Matthias Parey), Journal of
European Economic Association, 11 (S1), 2013
Enforcement of Labor
Regulation and Informality (with Rita Almeida), American Economic Journal: Applied Economics, 4(3), 2012
Trends in Quality Adjusted Skill Premia
in the United States (with Sokbae Lee), American Economic Review, 101 (6), 2011.
Estimating Marginal Returns to
Education (with James Heckman and Edward Vytlacil), American Economic Review, 101 (6), 2011.
Evaluating Indoor Residual Spray for Reducing Malaria
Infection Prevalence in Eritrea: Results from a Community Randomized Control
Trial (with Joseph Keating, Andrea Locatelli, Andemariam Gebremichael, Tewolde Ghebremeskel, Jacob Mufunda, SelamMihreteab and Daniel
Berhane), Acta Tropica, 119 (2-3), 107-113, 2011
Evaluating Marginal Policy Changes and the Average
Effect of Treatment for Individuals at the Margin (with James Heckman and
Edward Vytlacil), Econometrica, 78, 1, 2010.
Estimating Distributions of Potential Outcomes Using Instrumental
Variables with an Application to Changes in College Enrolment and Wage
Inequality (with Sokbae Lee), Journal of Econometrics, 2009
Enforcement of Regulation, Informal Employment, Firm
Size and Firm Performance (with Rita Almeida), Journal of Comparative Economics, 2009
The Returns to Firm Investment in Human Capital (with Rita
Almeida), Labour Economics, 2008
of Opportunity and Inequality in Education Achievement in Portugal, Portuguese Economic Journal, 7(1), April
Market Discrimination and Racial Differences in Pre-Market Factors (with James
Heckman and Dimitriy Masterov),
Journal of Law and Economics, 2005.
for Evaluating the Impact of Education Policies when the Return to Education
Varies Across Individuals, Cuadernos de Economia, 2003.
Distributions of Counterfactuals with an Application to the Returns to
Schooling and Measurement of the Effect of Uncertainty on Schooling Choice
(with Karsten Hansen and James Heckman), International Economic Review, 2003
Evidence on Credit Constraints in Post-Secondary Schooling (with James
Heckman), Economic Journal, 2002.
Removing the Veil of Ignorance in Assessing the
Distributional Impacts of Social Policy (with Karsten
Hansen and James Heckman), Swedish
Economic Policy Review, 2001.
economics of vocational education and training (with Lorraine Dearden and Anna Vignoles), in
International encyclopedia of education: volume 8, eds P Peterson, E Baker & B McGaw, Elsevier, Oxford, pp.255-261, 2010.
Which Skills Matter (with Claire Crawford and Alissa
Goodman), in D. Kehoe, Practice Makes
Perfect: The Importance of Practical Learning, Social Markets Foundation,
the Sources of Ethnic and Racial Wage Gaps and Their Implications for Policy (with James J. Heckman and
Dimitry V. Masterov), in L.
Nielsen and R. Nelson, Rights and
Realities: Legal and Social Scientific Approaches to Employment Discrimination, Springer-Verlag, 2005.
Human Capital Policy for Europe, European Economy, Special Report no 3/2004, European Commision, 2004.
Capital Policy (with James Heckman), in Inequality
in America: What Role for Human Capital Policies (edited by James Heckman
and Alan Krueger), MIT Press, 2003.
Tackling Social Exclusion: Evidence from Chile (with Emanuela Galasso and Rita Ginja), 2014
and Marginal Returns to Upper Secondary Schooling in Indonesia (with Michael Lokshin,Cristobal Ridao-Cano, and Nithin Umapathi), 2014
Do Public Health Interventions Crowd Out Private
Health Investments? Malaria Control Policies in Eritrea (with Andrea Locatelli,Tewolde Ghebremeskel and Joseph Keating), 2012
Impact of Early Cognitive and Non-Cognitive Skills on Later Outcomes (with
Claire Crawford and Alissa Goodman, 2007)