Randall A. Kramer, formerly Postgraduate Research Agricultural Economist, University of California, Davis, is Assistant Professor of Agricultural Economics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia; Rulon D. Pope, formerly Assistant Professor of Agricultural Economics at Davis, is Associate Professor of Agricultural Economics, Texas A & M University; B. Delworth Gardner is Director, Giannini Foundation of Agricultural Economics, University of California, Berkeley and Davis, and Professor of Agricultural Economics, Davis.