California Department of Food and Agriculture, 1995-2004
California Environmental Protection Agency, 2000-2005
Consultative Group on International Agricultural Research (CGIAR), Task Force on Natural Resource Management, 2003-2007
Cooperative State Research, Education, and Extension Service (CSREES) Review Team of Departments of Agricultural Economics (University of Arizona, 2002; Kansas State University, 2004; Michigan State, 2005; Purdue, 2006; Wisconsin, 2007)
Council for Agricultural Science and Technology (CAST) Task Force, 2002-2004
EPA Science Advisory Board, Economics Panel, 2008-2010
Food and Agriculture Organization of the United Nations, 2001-present
(Avian Flu Research Project, 2007-2009, Consultant; Research Program on Payment of Environmental Services, 2003-2008, PI)
National Academies’ National Research Council, Publicly Funded Agricultural Research and the Changing Structure of U.S. Agriculture Committee, 2002
National Science Foundation, Review Panel, 2002-2003
Performance-Based Environmental Policies for Agriculture, National Advisory Team Member, 2007-2009
Public Intellectual Property Resources for Agriculture (PIPRA), 2003-2005
Public Intellectual Property Resources for Agriculture (PIPRA), Advisory Board, 2003-2006
U. S. Department of Agriculture, 1985-present
U. S. Environmental Protection Agency, 1985-2005
World Bank, 1995-present