Economic landscapes: Multiplier product matrix analysis for multiregional input-output systems

Earlier work (Sonis and Hewings, 1993, 1995; Sonis, Hewings and Miyazawa 1997a) has explored new ways of examining the structure of regional economies using input-output and social accounting systems. In this paper, attention is focused on a new approach to the interpretation of Miyazawa's concepts of left and right multipliers in the decomposition of multiregional input-output systems. Using the technique of the multiplier product matrix (Sonis et al., 1997c), the hierarchical decomposition proposed exploits the insights offered by the fields of influence theory and provides a way of interpreting Miyazawa's left and right multipliers in terms of multiregional feedback loops.