Causes of U.S. Farm Commodity Programs
分析1930年代以来美国农产品价格支持计划对生产者保护程度的差异，强调这些计划本质上是收入再分配措施，并发现政治压力成本和社会成本（无谓损失）对再分配效率有重要影响。
This paper i s an attempt to explain variations by commodity in producer protection afforded by farm price support programs since the1930s. Particularly emphasized are theideas that these programs are essentially income redistributional measures and that, given political forces, the programs are attempts to redistribute efficiently. Variables associated with the cost to producers of generating political pressure and the social cost (deadweight losses)of redistribution are both found to be empirically important. Copyright 1987 by University of Chicago Press.