|Deputy Associate Director for Climate Change, Council on Environmental Quality, 2009 - 2010|
Research/Teaching Assistant, University of Maryland, 9/2004-5/2007
Research Assistant, International Food Policy Research Institute, 3/2005-8/2005
Program Associate for Africa, Trickle Up Program, 11/2000-6/2002
Research Assistant, International Plant Genetic Resources Institute, 9/1999-9/2000
|"U.S. Environmental Protection Agency Valuation of Surface Water Quality Improvements," (with Charles Grifﬁths, Matt Massey, Chris Moore,|
Steve Newbold, David Simpson, Patrick Walsh, and William Wheeler). Review of Environmental Economics and Policy. 6(1): 130-146, 2012.
"U.S. Emergency Response and Removal: Superfund's Overlooked Cleanup Program" (with Robin Jenkins, Elizabeth Kopits, and Alex Marten). Review of Environmental Economics and Policy. Forthcoming, 2012.
"Shifting Cultivation, Forest Fallow, and Externalities in Ecosystem Services: Evidence from the Eastern Amazon." Journal of Environmental Economics and Management. 61(1): 95-106, 2011.
"Constraints or Cooperation? Determinants of Secondary Forest Cover Under Shifting Cultivation." Agricultural and Resource Economics Review. 40(3): 471–487, 2011.
"Defining Access to Health Care: Evidence on the Importance of Quality and Distance in Rural Tanzania (with Kenneth Leonard and Melkiory Massatu). American Journal of Agricultural Economics 91 (2): 347-358, 2009.
"Forest Fallow Ecosystem Services: Evidence from the Eastern Amazon." NCEE Working Paper 2008-05, 2008.
"Do Discount Rates Change over Time? Experimental Evidence from Ethiopia (with Mahmud Yesuf). Environment for Development Discussion Paper 08-06, Resource for the Future, 2008.
Pesticide Use and Fish Harvests in Vietnamese Rice Agroecosystems (with Erik Lichtenberg). American Journal of Agricultural Economics, 90(1): 1-14, 2008.
Measuring and Accounting for Community Capabilities in Kordofan, Sudan (with Khalid El Harizi). IFPRI Discussion Paper No. 730, International Food Policy Research Institute, 2007.
A Training Guide for In Situ Conservation On-farm (with D.I Jarvis, L. Myers, et al.). International Plant Genetic Resources Institute, 2000.