A Further Look at Flexibilities and Elasticities
比较了直接估计的需求矩阵与逆需求矩阵的差异，发现用弹性倒推灵活性或反之会导致较大测量误差，建议在农业政策分析中使用直接估计的需求矩阵。
Abstract Relationships between price elasticities and price flexibilities are examined, with emphasis on comparing sizes of difference between a directly estimated demand matrix and an inverted demand matrix. Results show that by using inverted elasticities to represent flexibilities or vice versa, sizable measurement errors may be committed. In agricultural policy and program analysis, a directly estimated demand matrix should be used.