生产力
绿色革命
农业经济学
农业
作物
农业生产力
作物生产力
生产(经济)
农作物产量
业务
自然资源经济学
经济
地理
经济增长
考古
宏观经济学
林业
作者
Robert E. Evenson,Douglas Gollin
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2003-05-02
卷期号:300 (5620): 758-762
被引量:1496
标识
DOI:10.1126/science.1078710
摘要
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.
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