Reverse Impact Assessment Using a Regional Social Accounting Matrix

Abstract

Unlike traditional impact analysis, that measures the influence of a sector, or a set of like sectors, on the overall economy, we present in this note a simple reverse procedure that attempts to quantify the impact of activity changes in the overall regional economy over a specific subset of firms. We apply the procedure to a specific enclave of the chemical and basic industry sectors, which has been and still is of special significance for the development of the region. Because we feel that interdependency effects should be adequately captured, we rely on a 1995 regional social accounting matrix (SAM) of Andalusia, Spain, to establish the empirical structural support for the analysis. We proceed by setting up a linear SAM model to obtain extended multipliers, then we decompose them in three categories of effects (direct, indirect, and induced) under different hypotheses about the classification of endogenous and exogenous sectors. The decomposed multipliers are then apportioned to measure and distinguish the effects on the economic enclave. The results are seen to be quite robust to the exogeneity assumptions.

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References

AIQBH, 1996 Evaluatión de los Efectos Derivados de la Actividad de las Industrias de AIQBH en el Sistema Económico Onubense en 1995 [An evaluation of the effects on the economy of Huelva of AIQBH's industrial activities in 1995] Asociación de Industrias Químicas y Básicas de Huelva, Huelva.

Cardenete

M A

, 1998, Una matriz de contabilidad social para la economía Andaluza: 1990” [A social accounting matrix for the economy of Andalusia, 1990] Revista de Estudios Regionales 52(3) 137–152.

Cella

, 1984, The input – output measurement of interindustry linkages” Oxford Bulletin of Economics and Statistics 46(1) 73–84.

Clements

B D

, 1990, “On the decomposition and normalization of interindustry linkages” Economics Letters number 33, 337–340.

Defourny

Thorbecke

, 1984, “Structural path analysis and multiplier decomposition within a social accounting framework” Economic Journal 94 111–136.

Hirschman

A O

, 1958 The Strategy of Economic Development (Yale University Press, New Haven, CT).

Jensen

R C

West

G R

, 1980, Some reflections on input-output multipliers” Annals of Regional Science 14(2) 77–89.

Pyatt

Round

, 1979, “Accounting and fixed price multipliers in a social accounting framework” Economic Journal 89 850–873.

Pyatt

Round

, 1985 Social Accounting Matrices: A Basis for Planning (World Bank, Washington, DC).

10.

Rasmussen

P N

, 1958 Studies in Intersectorial Relations (North-Holland, Amsterdam).

11.

Robinson

Roland-Holst

D W

, 1987, “Modelling structural adjustments in the United States economy: macroeconomics in the social accounting framework”, WP 440, Department of Agricultural and Resource Economics, University of California, Berkeley, CA.

12.

Roland-Holst

D W

Sancho

, 1995, “Modelling prices in a SAM structure” The Review of Economics and Statistics 77 361–371.

13.

Sonis

Hewings

Sulistyowati

, 1997, “Block structural path analysis: Applications to structural changes in the Indonesian economy” Economic Systems Research 9 265–280.

14.

Stone

, 1978, “The disaggregation of the household sector in the national accounts”, paper reprinted in 1985 in Social Accounting Matrices: A Basis for Planning G Pyatt, J Round (World Bank, Washington, DC) chapter 8.