Evolution of the Economics of Agricultural Policy
追溯了农业政策经济学的演变，从早期应对1920-30年代经济困境的农场计划，到后来通过改进模型和工具深化对政策原因与后果的理解。
Abstract Agricultural economists helped develop farm programs to respond to the dire economic situation of the 1920s and 1930s. Some early authors appreciated that such policies created problems in markets for commodities and inputs. Over time, our understanding of agricultural issues and policies has deepened. Through the application of improved models and tools of analysis to more extensive data, we have developed better answers to old questions, and have responded to changing policy instruments, market contexts, and policy concerns. This article traces the evolution of our deepening economic understanding of the causes and consequences of agricultural policy.