Utility-Consistent Discrete-Continuous Choices in Soil Conservation
构建了一个效用一致的模型，将农民参与自愿土壤保护项目的决策与参与强度联系起来，并应用于伊利诺伊州和密歇根州的过滤带项目，发现不同地区的响应因素和政策影响存在差异。
A utility-consistent model of participation and participation intensity choices for a voluntary soil conservation program is developed. A modified form of Roy's Identity is used to derive a two-equation system that links the discrete, dichotomous choice (participation) and the continuous choice (intensity) to the same utility function. The model corrects for selectivity bias that arises in single-equation approaches. An application to a filter strip program in two counties in Illinois and Michigan demonstrates that different factors affect responses to the program across the sample regions. Estimated willingness-to-accept payments for participation in the program suggest policy impacts are not uniform across locations.