Estimating Changes in Planted Acreage in Iowa Throughout the Planting Season
构建了一个计量模型，评估爱荷华州种植季内经济条件变化对作物播种面积分布的每周影响，发现生产者会根据产量预期和价格变化调整最终种植决策，且“灵活”选项增加了作物转换。
An econometric model of acreage planted in Iowa was developed to assess the weekly impacts of changing economic conditions on acreage distribution among crops. The results indicate that the producer takes into account changes in yield expectations and prices in determining final planting decisions and that the "flex" options has increased crop switching.