United States Farm Commodity Programs and Land Use
利用县级数据估计政府支付对美国土地利用的影响，发现即使脱钩补贴也显著影响耕地面积，若支付减半，耕地将减少22%。
Abstract We estimate the impact of government payments on United States land use, using county‐level data from the National Resources Inventory and the Census of Agriculture in 1987, 1992, and 1997. Although payments were made under decoupled support programs, effects on land use are found to be significant. On average for the years studied, our simulations indicate that United States cropland acreage would have been 89 million acres (22%) less if program payments had been reduced to half their observed level (holding market prices of commodities constant). Percentage reductions are largest in marginal crop producing areas of the nation.