Wheat Acreage Supply Response under Changing Farm Programs
估计了美国主要小麦产区的种植面积供给弹性,发现春小麦、冬小麦和所有小麦的弹性分别为0.77、0.45和0.52,且各州差异显著。研究还表明,1950年和1954-64年间的面积配额和销售配额削弱了价格在分配小麦与其他作物面积中的作用。
Abstract Planted wheat acreage supply elasticities are estimated for each of several leading wheat‐producing states. Estimates of elasticities for the aggregate of these states are 0.77, 0.45, and 0.52 for spring wheat, winter wheat, and all wheat, respectively, but there is considerable heterogeneity among states. Acreage allotments and marketing quotas appear to have destroyed the role of prices in allocating acreage between wheat and other crops during the years 1950 and 1954–64. Estimates were obtained using multiple regression analysis of time‐series data for the period 1948–74. This period was subdivided in order to take account of changing farm programs.