Dynamics of productivity and technical efficiency in Russian agriculture
研究了俄罗斯各地区农业生产率和技术效率的变化，采用两步法估计，先通过系统GMM得到生产技术参数，再用随机前沿分析估算技术效率及其影响因素。
This paper analyses regional productivity and technical efficiency development in Russian agriculture. We formulate a regional stochastic frontier model by assuming that producers maximise return to the outlay. We control for regional heterogeneity and endogeneity/simultaneity in input decisions, technical efficiency and technical change by employing a two-step estimation procedure. In the first step, we use the system Generalized Method of Moments approach (system GMM), which gives consistent estimates of the production technology parameters. In the second step, we apply the standard stochastic frontier approach to estimate technical efficiency and its determinants