Incorporating monotonicity and concavity conditions in flexible functional forms
提出一种替代方法，仅在推断所涉及的价格集上施加单调性和凹性约束，避免全局限制对灵活性的过度约束，并用Berndt-Wood数据验证了三种函数形式的效果。
Empirical economists using flexible functional forms often face the disturbing choice of drawing inferences from an approximation violating properties dictated by theory or imposing global restrictions that greatly restrict the flexibility of the functional form. Focusing on the cost function, this paper presents an alternative approach which imposes monotonicity and concavity properties only over the set of prices where inferences will be drawn. An application investigating elasticities for Berndt-Wood data set using the translog, generalized Leontief, and symmetric generalized McFadden flexible functional forms illustrates the technique. © 1996 John Wiley & Sons, Ltd.