Input-Output Analysis of Informatization and the Service Economy (in Japanese)

Yasuhiro Tsukahara

Economic Analysis, 2011, vol. 185, 94-113

Abstract: The Japanese economy has been characterized as an "informatization" and "service economy". To keep up with the times of informatization, new industrial sectors concerning information were introduced into the 2005 input-output table. As a result, it is possible to analyze the effect of informatization through inter-industry transactions. This study concentrates on the informatization and service economy and aims to make the relationship between these phenomena clear from the inter-industrial point of view. To do this, we use Miyazawa's interaction model of goods and service industries. The data used in this study are obtained from a research project "Input-output analysis of Medical services, Nursing services and Social Welfare" which received Health and Labour Sciences Grants and was managed by the Institute for Health Economics and Policy. Though the main objects of this research project are the medical service, nursing service and social welfare sectors, analysis of information-related sectors is also possible. This study uses the 2005 input-output table for Japan consisting of 30 goods sectors and 30 service sectors. We consider 4 sectors as information-related sectors. The 4 sectors are "Information and communication electronics equipment", "Communication", "Broadcasting" and "Other information and communication" sectors. From the results of our analysis, "Communication", "Broadcasting" and "Other information and communication" sectors are closely related to service sectors respectively and these 3 sectors become both the origin and the end of the service economy. Specifically, "Broadcasting" sector has a strong effect as the origin and "Other information and communications" sector has a strong effect as the end.

Date: 2011
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