投入係数べクトル時系列に着目した情報通信資本ストックが我が国の産業構造に与える影響の分析

摘要

最近の情報通信技術の効果は社会經済を工業經済から情報經済ヘ移行し,情報化社会にした.物財よリも情報財の価値のほうが相対的に高くなり，情報によるビジネス,サービスが産業の中枢を占めるようになリつつあリ，經済へのィンパクトは非常に大きくなる可能性がある.しかし,情報通信技術の重要性,長期的なインパクトに関する定量的な研究は十分されていない.%It is well known that the penetration of the Information and Communication Technologies(ICT) has caused substantial technological and structural changes in the business environment. The purpose of this study is to carry out the empirical ana lysis on how the ICT contributed the economy of Japan. In this paper, we focus on the time series changes of Input-Output coefficient vectors through 1985-2005. We employ an extended multi-variate regression analysis and analyze the relationships between their changes and ICT stock. Based on the Maximum-Likelihood Test, we find(1)progress of such primary ICTs as an office automation equipment and wi red communication equipment contribute to the structure changes in primary industry sectors, telecommunications, and public services.(2) The industrial structure changes significantly appeared in the manufacturing, the building, utilities, transportation and tertiary industries when computers and other new ICT stock implemented.