Allocable Fixed Inputs as a Cause of Joint Production: A Cost Function Approach
利用Baumol等人的多产品成本概念，探讨可分配固定投入是否导致联合生产，发现短期成本函数中的相互依赖不一定导致联合生产，需满足范围经济或规模不经济条件。
Abstract The multiproduct cost concepts of Baumol, Panzar, and Willig are used to explore the contention of Shumway, Pope, and Nash that allocable fixed inputs cause joint production. Allocable fixed inputs may create an interdependence in the short‐run cost function when none exists in the long run; however, this will not necessarily lead to joint production. For joint production to occur in the short run, either the short‐run cost function must exhibit economies of scope, or stand‐alone production of one of the commodities must exhibit diseconomies of size. The issue of whether allocable fixed inputs cause joint production is an empirical question.