Research on the Total Factor Productivity in China's Electric Power Industry Based on the GML Model

Abstract

This paper uses the Global Malmquist-Luenberger index to measure the total factor productivity (TFP) in China's electric power industry of its 30 provinces during 2007-2013 with S􀜱􀬶, N􀜱􀯫 and soot emissions in the thermal power industry as the undesirable outputs, and discomposes the total factor productivity into technological progress, the pure technical efficiency and scale efficiency changes. The research shows that the total factor productivity improvement of the electric power industry is more noticeable, but the growth rate is not stable; the technological progress is the main cause of the growth rate increase in the provincial total factor; the contribution of scale efficiency is higher in the provinces with their TFP growth rate in the top, and pure technical efficiency deteriorates seriously in the provinces with their TFP growth rate in the bottom.