ECONOMIC GROWTH CENTER YALE UNIVERSITY P.O. Box 208269 New Haven, Connecticut 06520-8269 CENTER DISCUSSION PAPER NO.805 TECHNOLOGY CLIMATE INTERACTIONS IN THE GREEN REVOLUTION IN INDIA James W. McKinsey, Jr. Bryant College Robert E. Evenson Yale University August 1999 Note: Center Discussion Papers are preliminary materials circulated to stimulate discussions and critical comments. TECHNOLOGY CLIMATE INTERACTIONS IN THE GREEN REVOLUTION IN INDIA* James W. McKinsey, Jr. Robert E. Evenson Abstract This paper present a model of the Green Revolution in India, in which the development and diffusion of HYVs, the expansion of irrigation and the expansion of multiple-cropping are treated as endogenous responses to more basic investments in agricultural technology and infrastructure, as well as to climate and edaphic endowments. We incorporate explicit climate-technology interactions in the model, in order to identify climate effects on the diffusion of HYVs, irrigation and multiple- cropping, and on Net Revenue to agriculture. We find that climate affects technology development and diffusion, and that technology development and diffusion affect the impacts of climate on agricultural productivity in India. Key words: Green Revolution, India, HYV, Rice, Wheat, Climate, Agricultural Research JEL classifications: 112, 121, 226, 620, 710 _______________________________________________________________________ McKinsey: Department of Economics, Bryant College, Douglas Pike, Smithfield, RI jmckinse@bryant.edu Evenson: Economic Growth Center, Yale University, Box 208269, New Haven, CT, 06520 robert.evenson@yale.edu *This paper is based on McKinsey's unpublished 1998 Yale Ph.D. disseration HYVs, Multiple- Cropping, Irrigation, Climate and the Green Revolution in India, written under the direction of Professor Evenson. The assistance of Bruce Dixon, Robert Mendelsohn, Ariel Dinar and three anonymous referees is gratefully acknowledged; all usual disclaimers apply.