The Effect of Agricultural Policies on Land Use and Environmental Quality
研究了减少农业收入支持可能带来的环境质量改善，通过新方法估计土地利用份额，并以威斯康星州为例，发现减少牛奶价格支持使边际农地转为林地，减少土壤侵蚀并改善水质，环境效益至少与消费者和纳税人的福利损失相当。
Abstract In this paper I consider the environmental quality gains that may be achieved by reducing agricultural income supports. A new methodology is developed to estimate land use shares. In an application to Wisconsin, milk price support reductions result in shifts of marginal agricultural land to forest, reducing soil erosion and providing off‐site water quality improvements. The environmental benefits are estimated to be at least as large as the decreased welfare burden on consumers and taxpayers, indicating a central role for environmental quality considerations in motivating policy reforms and a more efficient means of achieving the environmental quality goals of land retirement programs.