A test for the existence of allocative inefficiency in firms
提出一种检验企业是否存在配置无效率的方法，适用于成本函数随机、允许技术无效率且要素投入份额方程随机的情况，并报告了实证经验。
Abstract This paper is concerned with the problem of testing for the presence of allocative inefficiency in firms for models in which the cost function is stochastic, the possibility of technical inefficiency is allowed, and the efficient input cost share equations are stochastic. The test exploits the relationships among the disturbances in the cost and share equations to derive implications of the existence of allocative inefficiency. This leads to the use of a Wald‐type statistic to take account of the one‐sided nature of the alternative. Some empirical experience is reported.