経済のサービス化と産業連関

──北海道のI-O分析──

抄録

　　Productivity of workers differs among the regions involved.　Regional economic performance is believed to be largely dependent on the activities of manufacturing.　However, most advanced countries have a low correlation coefficient between per capita income and the share of manufacturing.　 In the 21st Century, we recognize that improvements in the non-manufacturing sectors are needed for Japanese economic recovery.

　　From the above point of view, I adopted an I-O analysis for the Hokkaido economy, which has a much larger share of service-products than the average for Japan.　Two-sectors, the physical good-producing sector and the service-production sector, were selected to derive various characteristics of the Hokkaido economy.　The fundamental equation for the divided I-O model is as follows;

　　The relation of industrial structure and productivity, factors of productivity differences, as well as the role of the service sector activities for the regional economy are determined.　Using the I-O analysis, we can see the extent of activity for some sector has an effect on the activities of other sectors.　In short, the objective of this study was to determine the roles service sector activities played in the regional economy, especially in terms of the productivity of the region.

　　In Hokkaido, the service sector has grown faster than the average Japanese economy.　Using the above partitioned I-O model, we can show not only that the internal multiplier for a good-producing sector has decreased, but also the external effect of the service sector activities on improving manufacturing has not been significant.　These results are much more notable in Hokkaido than the entire economy of Japan.

JEL Classifications:L3, O4, R2