報告書番号

Y01014

タイトル（和文）

Hollowing Out Process in Regional Economy: an Interregional Inpout-Ouput Analysis

タイトル（英文）

Hollowing Out Process in Regional Economy: an Interregional Inpout-Ouput Analysis

概要 （図表や脚注は「報告書全文」に掲載しております）

本報告は、日米の地域間産業連関表を用いた地域経済の空洞化現象に関する構造分析を行い、地域経済に生じていた構造変化のファクトファインディングスを通して将来の地域経済分析に有用な基礎的情報を蓄積するとともに、将来の研究課題の発掘を目的としている。特に地域経済間の相互依存関係をもたらす地域間交易構造と地域産業の空洞化現象に焦点を当て、両国での構造変化の異同に着目して分析を行う。全国9地域産業連関表接続表を用いた分析の結果、地域内産業の中間投入のうち地域内生産物に対する需要の構成比が傾向的に減少する現象を観測した。日米両国の地域経済で空洞化の進行が観測されているが、日本では特に関東からの購入が増加してきたという特徴を持つのに対して、米国では特定地域からの購入が増加しているわけではなく、地域間交易構造の変化では両国に差違がある。

概要 （英文）

An earlier analysis, Hewings et al. (1998) revealed the hollowing-out process, a decrease in the level of intraregional intermediation, in the Chicago economy during the period 1975-2010. The main force underlying this structural change has been the change in regional trade patterns in a way that interregional trade has replaced the local purchases of intermediated products. The decrease in local purchase causes the decrease in intraregional output multiplier and the increase in interregional export from other regions, so that the change is considered as a key factor affecting regional economic growth.Central Research Institute of Electric Power Industry (CRIEPI) has been carrying out the project to analyze the interregional trade and the linkage among regional economies in collaboration with Regional Economics Application Laboratory, University of Illinois (REAL) since 1998. In the collaborative research works, we identified the decrease in intraregional intermediation and dispersion of interregional trade in Japan (Hitomi {\it et al.},2000) similar to the U.S. Midwest (Illinois, Indiana, Michigan, Ohio, and Wisconsin) case. This report examines the structural changes in interregional economic activities for Japan and the U.S. regions. Our analysis shows that the hollowing-out processes of Japanese and the U.S. regional economy took place in the past decade. Specifically, we found that the linkage among central three regions (Kanto, Chubu, and Kinki) was the most important factor of the output inducement in Japanese economy. In other words, the production process in each regional economy has heavily depended on the economic activities of the central three regions. Furthermore, by applying the Spatial Feedback Analysis to the series of Japanese interregional input-output table (1980-1985-1990), we found that the dependency on these three regions slightly increased within the period, while the result of the analysis using U.S. table did not show such heavy concentration of interregional trade on a specific region. Although further investigation may be required to clarify the cause of different hollowing out pattern in two countries, the results of our analysis indicate that both the scale of economies and the spatial distribution of economic activities within the countries affect the proceeding of hollowing-out process.

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