- “Here Today, Gone Tomorrow: Can Dynamic Incentives Make Microfinance More Flexible?” Journal of Development Economics 80 (2006), 84 – 105.
- “Drug Markets: A Classroom Experiment” American Economist, LI:1 (2007), 75 – 83.
- “Overcoming Selection Bias in Microcredit Impact Assessments: A case study from Peru.” Journal of Development Studies. 44: 4 (2008), 504 – 518.
- “Cross Sectional Impact: Bias from Dropouts” with Dean Karlan, Yale University. Forthcoming (Spring 2009) in Perspectives on Global Development and Technology.
Other Intellectual Contributions:
- “Beyond the Subsidy: Coyotes, Credit and Fair Trade Coffee.” with Julie Carlson DeCourcy, Federal Trade Commission.