The Effect of Efficiency Improvement and Technological Progress on Green Productivity Growth: An Empirical Analysis for 36 Sub-industrial Sectors in China

Global DEA approach and Malmquist-Luenberger index are applied to measure subindustrial green TFP growth and its components in presence of energy and carbon emissions.From the result of calculating,it is concluded that industrial green TFP growth is mainly driven by technological progress and drawn back by efficiency change.It is also found that the sub-industrial carbon productivity shows a constantly rising trend.The different impact of technical efficiency and technological progress is confirmed by empirical test on the rising sub-industrial carbon productivity.The impact of efficiency change is stronger than that of technological progress on industrial carbon productivity and the impact of technical efficiency and technological progress on the carbon productivity of weight industry is stronger than that of light industry.Therefore,Low-carbon technological progress should be strengthened to promote the subindustrial carbon productivity growth,while more attention should be paid to exert the role of technical efficiency in promoting sub-industrial carbon productivity.