Stephen B. and Janice G. Ashley Professor of Applied Economics and Management and International Professor of Agriculture, Charles H. Dyson School of Applied Economics and Management, Professor of Economics, Department of Economics, and Professor, Department of Global Development, Cornell University, 2008-present
Professor, 2003-2007
Associate Professor, 1998-2003
Professor of Economics, 2011-present
Professor of Global Development, 2020-present

Founding Deputy Dean and Dean of Academic Affairs, College of Business, Cornell University, 2016-2018

David J. Nolan Director, the Charles H. Dyson School of Applied Economics and Management, Cornell
University, 2013-2016

Founding Associate Director for Economic Development, David R. Atkinson Center for a Sustainable Future, Cornell University, 2008-2012. Faculty Fellow, 2009-present

Distinguished Research Affiliate, Kellogg Institute for International Studies, University of Notre Dame, 2016-2020

Visiting Scholar, Center on Food Security and the Environment, Freeman Spogli Institute for International Studies, Stanford University, January-March 2020.

Visiting Professor of Environmental Science and Public Policy and Visiting Scholar, John F. Kennedy School of Government, Harvard University, January-May 2017.

Visiting Professor, Department of Economics, Monash University (Australia), January-July 2013.

Visiting Professor, Department of Economics, University of Melbourne (Australia), January-June 2013.

Associate Professor (with tenure) and Assistant Professor, Department of Economics, Utah State University. 1994 - 1998.

Adjunct Professor, Cardinal Stritch College, Program in Management for Adults, Madison, WI. 1992-1994.

Economist, The Institute of International Financ, 1987-1990

Research Analyst, Strategic Planning Associates, Washington, DC. Consultant for business strategy reviews at CEO and senior corporate executive level. 1986-1987.

Captain (promotable), United States Army Reserve and National Guard, US Army Reserve, Second Lieutenant Military Intelligence officer, company executive officer, company commander, and in battalion and brigade staff positions in a light infantry division,state National Guard headquarters, 1981-1993