David Letson University of Miami/RSMAS/Marine Affairs   University of Miami/RSMAS/Marine Affairs 4600 Rickenbacker CSWY Miami, FL 33149-1098 USA   dletson@rsmas.miami.edu   http://www.rsmas.miami.edu/divs/maf/people/dletson.html   Biographical Sketch: David Letson is Associate Professor of Marine Affairs and Economics at the University of Miami, where he has been since 1995. Letson has a PhD in economics from the University of Texas at Austin, with concentrations in natural resource economics and public finance. Letson specializes in natural resource economics and the economics of regulation. From 1990-95 he served as an environmental economist with the Natural Resources and the Environment Division of the Economic Research Service, United States Department of Agriculture.   Primary Research Focus: climate and agriculture   JEL Areas: Q2 : Renewable Resources and Conservation: General Q1 : Agriculture: General