摘要：The impacts of program subsidy on productivity growth is investigated in this study Mundlak's concept of endogeneity is applied to technical efficiency and generalized within a dual framework. Technology is described by an aggregate cost function while technical efficiency is conditional on a vector of state variables. Empirical evidence from the U.S. dairy sector supports the hypothesis that protectionism, in the form of program subsidy, is the source of considerable technical inefficiencies.
