(This paper is for AAEA meeting, July 1986. Final revision: 7/25/86.) IMPACTS OF TECHNOL GY AIIPTION ON U.S. RICE ECONOMY - THE CASE OF HIGH YIELDING SEMIDWARFS ShoichiLI_1? Warren R. Grant M. Edward Rister I U NIVERSITY Or': AgoculLitai Ito is a graduate research assistant, Department of Agricultural Economics, Texas AM University;, Grant is an agricultural economist, National Economics Division, ERS, USDA at Texas A&M University; Rister is an associate professor, Department of Agricultural Economics, Texas A&M University. This research was jointly funded by the Texas Agricultural Experiment Station and the U.S. Department of Agriculture. The typing assistance of Nina Nobles and Anna Hallaran is gratefully acknowledged. 1 1