Global and local implications of biotechnology and climate change for future food supplies

被引:18
作者
Evenson, RE [1 ]
机构
[1] Yale Univ, Dept Econ, New Haven, CT 06520 USA
关键词
D O I
10.1073/pnas.96.11.5921
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The development of improved technology for agricultural production and its diffusion to farmers is a process requiring investment and time. A large number of studies of this process have been undertaken. The findings of these studies have been incorporated into a quantitative policy model projecting supplies of commodities (in terms of area and crop yields), equilibrium prices, and international trade volumes to the year 2020, These projections show that a "global food crisis," as would be manifested in high commodity prices, is unlikely to occur. The same projections show, however, that in many countries,"local food crisis," as manifested in low agricultural incomes and associated low food consumption in the presence of low food prices, will occur. Simulations show that delays in the diffusion of modern biotechnology research capabilities to developing countries will exacerbate local food crises. Similarly, global climate change will also exacerbate these crises, accentuating the importance of bringing strengthened research capabilities to developing countries.
引用
收藏
页码:5921 / 5928
页数:8
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