Evaluating Greening Farm Policies: A Structural Model for Assessing Agri-environmental Subsidies
利用结构计量模型，评估欧盟农业环境计划对减少农田营养物污染的效果，量化补贴对土地分配和化肥使用的影响，并估算污染减少的经济价值。
This study uses a structural econometric model to evaluate the impacts of support from a European Union agri-environmental program designed to reduce nutrient pollution from agricultural land. Drawing on a representative sample of individual grain farms, we first quantify the effects of agri-environmental payments on farms’ decisions on land allocation and on fertilizer use. We then combine the predicted land allocation and fertilizer use with environmental production functions to quantify the impact on nutrient loading. Finally, we assess the monetary value of reduced nutrient pollution, drawing on a recent valuation study. (<i>JEL Q53, Q58</i>)