Research on Total Factor Productivity Evaluation of Chinese Power Grid Enterprises

The total factor productivity research on the micro level is to analyze an enterprise's real input and output, choose an appropriate measurement method, and accurately measure its input-output level. Based on the "three responsibilities" of Chinese power grid enterprises, this paper constructs a systematic and scientific input-output factor screening system, determines specific output and input indicators, uses Törnqvist total factor productivity index model to calculate the TFP change of a certain Chinese power grid enterprise in the year of 2008-2017, does a further penetration analysis of input-output changes, verifying that the evaluation model constructed in this paper is effective.