Estimation and decomposition of productivity change when production is not efficient: a paneldata approach
研究了当生产存在非效率时，如何估计和分解生产率变化，将其分解为效率变化、技术变化和规模效应，并提出了三种基于生产、成本和利润函数的参数方法。
This paper addresses estimation and decomposition of productivity change, which is mostly identified as technical change under constant (unitary) returns to scale (CRS). If the CRS assumption is not made, productivity change is decomposed into technical change and scale effects.Furthermore, if inefficiency exists, it also contributes to productivity change. Here we decompose productivity change into efficiency change, technical change, and scale effects. Three alternative approaches using parametric production, cost, and profit functions, which differ in terms of behavioral assumptions on the producers and data requirements, are considered.