Productivity Gains from Rice Genetic Enhancements in West Africa: Countries and Ecologies
Productivity Gains from Rice Genetic Enhancements in West Africa: Countries and Ecologies
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西非水稻遗传改良提高生产力：国家和生态
DOI：
10.1016/s0305-750x(02)00189-4
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发表时间：
2003
影响因子：
6.9
通讯作者：
R. Guéi
中科院分区：
文献类型：
--
作者：
T. Dalton;R. Guéi
许多批评者声称，西非的公共研究未能发展技术创新，以提高生产力和刺激农业部门的经济发展。使用Griliches的方法估计研究引起的供应转移的影响，这项研究发现，水稻品种改良产生了约3.6亿美元的生产者剩余收益在1998年在西非的七个最重要的水稻生产国。81%的收益发生在灌溉和灌溉的低地生态中，这两种生态分别占区域水稻总面积的12%和35%。相比之下，每年约有560万美元投资于区域品种改良研究。
Many critics claim that public research in West Africa has failed to develop technological innovations to improve productivity and stimulate economic development in the agricultural sector. Using Griliches’ method of estimating the impact of a research induced supply shift, this study finds that rice varietal improvement generated a producer surplus gain of approximately US$360 million in 1998 in the seven most important rice-producing countries of West Africa. Eighty-one percent of this gain has occurred in the irrigated and rainfed lowland ecologies which occupy just 12% and 35% of total regional rice area respectively. By contrast, approximately US$5.6 million is invested annually in regional varietal improvement research.