TY - JOUR AU - Jorgenson,Dale W. AU - Motohashi,Kazuyuki TI - Information Technology and the Japanese Economy JF - National Bureau of Economic Research Working Paper Series VL - No. 11801 PY - 2005 Y2 - November 2005 UR - http://www.nber.org/papers/w11801 L1 - http://www.nber.org/papers/w11801.pdf N1 - Author contact info: Dale Jorgenson Department of Economics Littauer Center Room 122 Harvard University Cambridge, MA 02138 Tel: 617-495-4661; djorgenson@harvard.edu Fax: 617-495-4660 E-Mail: djorgenson@harvard.edu Kazuyuki Motohashi Associate Professor Research Ctr for Advanced Science & Technology University of Tokyo 4-6-1 Komaba Meguro-ku Tokyo Japan Tel: +81-3-5452-5338 Fax: +81-3-5452-5343 E-Mail: motohashi@tmi.t.u-tokyo.ac.jp M1 - published as Dale W. Jorgenson. "Information Technology and the G7 Economies," in Ernst R. Berndt and Charles R. Hulten, editors, "Hard-to-Measure Goods and Services: Essays in Honor of Zvi Griliches" University of Chicago Press (2007) AB - In this paper we compare sources of economic growth in Japan and the United States from 1975 through 2003, focusing on the role of information technology (IT). We have adjusted Japanese data to conform to U.S. definitions in order to provide a rigorous comparison between the two economies. The adjusted data show that the share of the Japanese gross domestic product devoted to investment in computers, telecommunications equipment, and software rose sharply after 1995. The contribution of total factor productivity growth from the IT sector in Japan also increased, while the contributions of labor input and productivity growth from the Non-IT sector lagged far behind the United States. Our projection of potential economic growth in Japan from for the next decade is substantially below that in the United States, mainly due to slower growth of labor input. Our projections of labor productivity growth in the two economies are much more similar. ER -