著者

富田 輝博

出版者

文教大学

雑誌

情報研究 = Information and Communication Studies (ISSN:03893367)

巻号頁・発行日

vol.14, pp.129-141, 1993-01-01

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This paper analyses productivity and competitive starategy of the telecommunication industry in Japan and U. S. In section 1, I analyse and compare the productivity of NTT, TEPCO, SONY, and NINTENDO. I adopt labor, capital and total factor productivity analysis for that purpose using NIKKEI financial data. Further, I show the outline of divisional income statement of NTT in 1992, as NTT has showed it separately between long term distance and local phone division for the first time. In section 2, I consider the competitive strategy of the telecommunication industry of U. S. , because it has passed almost 10 years after the breakup of ATT and the evaluation on success or failure of the breakup is discussed actively both on theoretical and empirical basis in U. S. I think this analysis is usefull to consider the breakup problems of NTT in 1995.