1. Education reforms (with Susanna Loeb). In Targeting Investments in Children: Fighting Poverty When Resources Are Limited, ed. Phil Levine and David Zimmerman, 2010.
    2. Admissions lotteries in charter schools (with Robert Olsen). In Taking Measure of Charter Schools, ed. Julian Betts and Paul T. Hill, 2010.
    3. School choice, stratification, and information on school performance: Lessons from Chile. Economía (with Miguel Urquiola and Emiliana Vegas), 2008.
    4. The potential impact of vouchers. Peabody Journal of Education, 2004.
    5. How effective are private schools in Latin America? Comparative Education Review (with Marie-Andrée Somers and J. Douglas Willms), 2004.
    6. Does privatization improve education? The case of Chile’s national voucher plan (with Martin Carnoy). In Choosing choice: School choice in international perspective, ed. David N. Plank and Gary Sykes, 2003.
    7. Propuestas alternativas a la asignación estatal de recursos. In Equidad y financimiento de la educación en América Latina, ed. Alejandro Morduchowicz, 2003.
    8. Public subsidies for private schooling: A comparative analysis of Argentina and Chile. Journal of Comparative Policy Analysis, 2002. Translated as: Educación pública y privada en el cono sur: Un análisis comparativo entre la Argentina y Chile. In Las reformas educativas en la década de 1990: Un estudio comparado de Argentina, Chile y Uruguay, ed. Martin Carnoy, Gustavo Cosse, and Cristián Cox. Buenos Aires: Ministerio de Educación.
    9. The effectiveness of public, Catholic, and non-religious private schools in Chile’s voucher system. Education Economics, 2001.
    10. Privatization through vouchers in developing countries: The cases of Chile and Colombia (with Martin Carnoy). In Privatizing education, ed. Henry M. Levin, 2001.
    11. The potential impact of large-scale voucher programs. Review of Educational Research, 2000.
    12. The effectiveness and efficiency of private schools in Chile’s voucher system. Educational Evaluation and Policy Analysis (with Martin Carnoy), 2000.