Economic profitability versus ecological entropy
成果类型：
Article
署名作者：
Weitzman, ML
署名单位：
Harvard University
刊物名称：
QUARTERLY JOURNAL OF ECONOMICS
ISSN/ISSBN：
0033-5533
DOI：
10.1162/003355300554728
发表日期：
2000
页码：
237-263
关键词：
摘要：
There is a long-standing trade-off in bioculture between concentrating on high-yield varieties and maintaining sufficient diversity to lower the risks of catastrophic infection. The paper uses a simple ecology-based model of endogenous disease to indicate how a local decision to plant more of a widely grown crop creates negative externalities by increasing the probability that new pathogens will evolve to attack the crop globally. Society's basic issue concerns where to locate on an efficiency frontier between economic profitability and a standard formula for ecological entropy-proved here to be a rigorous measure of generalized resistance'' to crop-ecosystem failure.
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