"Only One Tree From Each Seed? Environmental Effectiveness and Poverty Alleviation in Programs of Payments for Ecosystem Services." (with Jennifer Alix-Garcia and Patricia Yanez-Pagans) Working paper, May, 2013
"Disruption, Achievement, and the Heterogeneous Benefits of Smaller Classes" (with Graham McKee and Steven Rivkin). Revise and resubmit, June 2013.