INTERREGIONAL INTERDEPENDENCE AND REGIONAL ECONOMIC-GROWTH IN JAPAN -AN INPUT-OUTPUT-ANALYSIS

This article examines the sources of regional economic growth in Japan by using an extended growth-factor decomposition method based on an i nterregional input-output model. The extended formula avoids some prob lems of shift-share analyses and measures the roles played by interreg ional and interindustry linkages in the growth of a regional economy. This method can identify growth factors that originate outside a regio n as well as those that originate from within. Applying the method to Japanese interregional input-output tables reveals that interregional interdependence has exerted notable effects on regional economic growt h in Japan and that regions are becoming more interdependent.