Spatial dominance: a new approach to the estimation of interconnectedness in regional input-output tables

Abstract.

In the first, theoretical part, the paper gives an overview of possible measures of the impact of loops and feedbacks in an input-output structure. In the second part, the paper provides indicators that measure interregional connectedness. Applying the influence graphs theory, a distinction is proposed between partial interconnectedness (between two or three regions, sectors, ...) and global interconnectedness (between all regions, sectors, regional sectors ...). Lastly, this approach is illustrated by a comparison of two French tables (1982 and 1992), computed by a simple method of biproportion, and consisting of 6 large regions and 6 large sectors.