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Science 2 May 2003:
Vol. 300. no. 5620, pp. 758 - 762
DOI: 10.1126/science.1078710
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Review

Assessing the Impact of the Green Revolution, 1960 to 2000

R. E. Evenson* and D. Gollin

We summarize the findings of a recently completed study of the productivity impacts of international crop genetic improvement research in developing countries. Over the period 1960 to 2000, international agricultural research centers, in collaboration with national research programs, contributed to the development of "modern varieties" for many crops. These varieties have contributed to large increases in crop production. Productivity gains, however, have been uneven across crops and regions. Consumers generally benefited from declines in food prices. Farmers benefited only where cost reductions exceeded price reductions.

1Department of Economics, Yale University, New Haven, CT 06520, USA. Department of Economics, Williams College, Williamstown, MA 01267, USA.

* To whom correspondence should be addressed. E-mail: robert.evenson{at}yale.edu

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