Measurement and Evaluation of Technological Innovation Efficiency of Listed Companies in the Construction Material Industry in the Context of Green Transformation:Case Study for China's 35 Listed Companies from 2017 to 2021
Based on the data of 35 listed companies in China's construction material industry from 2017 to 2021,this paper employs the DEA Malmquist index method to measure the o-verall innovation efficiency and analyze the variation in the industry.The results show that the innovation efficiency in China's construction material industry s is on the decline,which is mostly due to the inadequate scale of the industry,the low technological maturity,and the ineffective resource allocation.Further study demonstrates that the innovation efficiency va-ries little between industries,but it is uneven throughout the regions.Based on the above,this paper proposes relevant recommendations from the aspects of the nation,the industry,the subdivided region and the enterprises,including financial guidance,the integrated tech-nological service platform construction,the inter-disciplinary talents introduction,and diver-sified profit models,so as to improve the technological innovation efficiency.
green transformationconstruction material industrytechnological innovation efficiencydata envelopment analysis