@article{oai:bunkyo.repo.nii.ac.jp:00003372, author = {富田, 輝博}, journal = {情報研究, Information and Communication Studies}, month = {1990-01-01, 2012-01-17}, note = {This paper analyzes the productivity of the electric power industry in Japan. I use total factor productivity (TFP) analysis, induced by translog cost function. First, the paper presents the model of TFP, after introduction.  In section 3, I show the results of estimation which was conducted by TSP econometric programs. The performance of electric utilities is not so good during 1978-1987, because all utilities except TEPCO are minus or zero productivity growth.  The sources of productivity growth are constructed by two factors : economies of scale and technical change. Electric utilities have a little scale economies but have no or minus rate of techmical change in average, because of existence of X inefficiency and lack of R & D investment. Accordingly, these results may suggest the needs of restructuring for Japanese electric power industry and/or a regulatory reform from rate of return to price-cap regulation.}, pages = {1--13}, title = {電気事業の生産性分析}, volume = {11}, year = {} }