The purpose of this paper is to improve the statistical analysis of multiproduct firm behavior. The authors offer a new empirical technique that can be used to directly analyze issues such as subadditivity, expansion path subadditivity, economies of scope, and economies of diversification....

This paper introduces an intertemporal variable cost indirect technology which permits technological change over time, as well as allowing for intertemporal financial flexibility. It characterizes firms or agencies which maximize outputs or services subject to a budget constraint. We define...

This paper introduces as an intertemporal variable cost indirect technology which permits technological change over time and allows for financial flexibility, i.e., intertemporal budgeting. It characterizes agencies which maximize outputs or services subject to the budget they face. We define...

In this paper we propose a new technique for incorporating environmental effects and statistical noise into a producer performance evaluation based on data envelopment analysis (DEA). The technique involves a three-stage analysis. In the first stage, DEA is applied to outputs and inputs only, to...