(United States) is a Professor of Economics at the University of Maryland, a Senior Fellow at Resources for the Future, and a former Lead Economist at the World Bank. She has served as chair of the Environmental Protection Agency’s Science Advisory Board Environmental Economics Advisory Committee and as president of the Association of Environmental and Resource Economists.

She is a member of the United States National Academy of Sciences and a Research Associate of the National Bureau of Economic Research. Her research has focused on valuing environmental amenities (especially environmental health effects), on the discounting of future health benefits, and on the tradeoffs implicit in environmental regulations.

Her current research focuses on energy efficiency in India, on the impact of climate change on migration, and on the benefits of collective action in pandemic flu control. Dr. Cropper received a B.A. in Economics from Bryn Mawr College (summa cum laude, 1969) and a Ph.D. in Economics from Cornell University (1973).