Derivation of long-run factor demands from short-run responses
利用受限成本函数的概念，从短期技术分析出发，推导不同约束下的长期均衡，并应用于法国谷物生产部门，使用农场横截面数据刻画其替代可能性。
The concept of the restricted cost function provides a dual approach to the analysis of short-run technology. It allows also, under curvature restrictions, inference of the different possible equilibria, according to constraints on the firms. Moreover, in this paper, the properties of the restricted cost function are spelled out. Substitution possibilities related to the different regimes are also derived from the restricted cost function. This theoretical framework is applied to characterize the French cereal-producing sector by using a cross-section of farms.