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A comparison of alternative methods of updating input-output coefficients
Authors:H.C. Davis  E.M. Lofting  J.A. Sathaye
Affiliation:H. C. DAVIS, E. M. LOFTING, and J. A. SATHAYE are respectively, Associate Professor, School of Community and Regional Planning, University of British Columbia and Research Economists, Lawrence Berkeley Laboratory, University of California, USA
Abstract:
In recent years there has been a growing number of input-output models of economies ranging in scale from the rural to the national. While offering invaluable insights into the interaction of sectors within an economy, the input-output model suffers from the fact that its coefficient values are altered over time due particularly to technological change. Two of the prominent techniques designed to update these technical coefficients, the RAS and linear programming methods, are compared herein with regard to changes in U.S. national coefficients between 1963 and 1967. Suggestions for improvements to the latter method are outlined.
Keywords:
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