Selection of Input-Output Factors for Total Factor Productivity Evaluation of Chinese Power Grid Enterprises

In response to the call of the 19th CPC National Congress, China's large-scale power grid companies have proposed in recent years to improve total factor productivity. Based on the analysis of the problems existing in the traditional efficiency evaluation methods of power grid enterprises and the importance of the evaluation of total factor productivity, combined with literature research, this paper focuses on the input-output factors with characteristics of power grid companies.