Study on the technology progress impact on pollutant generation based on malmquist index: take industry SO ₂ as an example

This paper identified that there were two aspects of the effects on industrial pollution production by technological progress: the scale effect which promotes economic scale and the intensity effect which reduces pollution generation intensity. Based on the Malmquist index, a theoretical model was built to analyze the two effects, and an empirical study on the industrial SO ₂ production changes during 2006 and 2009 due to the technical progress was carried out. The results indicate that technical progress reduced the amount of industrial SO ₂ production. Technical progress reduced the amount of industrial SO ₂ production in 2006-2007 and 2008-2009, while it was the opposite situation in 2007-2008. The scale effect was more significant in the eastern region, while the intensity effect was more significant in the central region.