Research on technological innovation efficiency of transportation equipment manufacturing industry:based on the empirical data of A-share listed enterprises from 2016 to 2020
Taking the transportation equipment manufacturing A-share listed enterprises from 2016 to 2020 as a sample,the data envelopment analysis method is used to construct the BCC model with variable returns to scale and the output oriented Malmquist index model,and the innovation technology efficiency of 39 A-share listed enterprises in Shanghai and Shenzhen is analyzed.The results show that the scale and technological progress of enterprises are the main factors restricting the innovation efficiency of transportation equipment manufacturing industry.Expanding the production scale and continuously improving and developing new technologies are the only way to improve the innovation capacity of the transportation equipment manufacturing industry.
万方数据
