Research on the Efficiency of Circular Economy Development of Silk Road Economic Belt in China based on Super- Efficiency DEA Model

The efficiency of circular economy development of nine provinces in the West along Silk Road Economic Belt in China from 2009 to 2012 is measured using super efficiency DEA method. Results show thatThe gap of efficiency of circular economy between different regions is larger, the average efficiency values of Chongqing, Guang xi, Shaanxi, Yunnan and Xinjiang are reached effective DEA, however, Sichuan, Ningxia, Gansu and Qinhai are not reached effective DEA. The efficiency of circular economy of Sichuan and Ningxia is mainly limited by development scale, The projection result shows that Gansu, Qinghai and Xinjiang have input redundancy and output deficiency to a certain degree. Based on the findings, some suggestions are proposed to improve the efficiency of the circular economy development of Silk Road Economic Belt.