Estimation of innovation's green performance: A range-adjusted measure approach to assess the unified efficiency of China's manufacturing industry

A DEA-RAM model is adopted to study the unified efficiency of innovation's green performance in 29 sectors of China's manufacturing industry over the period of 2005-2012 in this paper. This study provides evidences that innovation in China's manufacturing industry shows a shift to green innovation and contributes increasingly to green growth. However, the lag in the environmental efficiency remains a major constrain for improving innovation's green performance of China. A significant regional disparity exists in the unified efficiency between western and eastern areas of China. The gap in the unified efficiency tends to increase across regions.