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External dependency, value added generation and structural change: an interindustry approach

Listed author(s):
  • João Ferreira do Amaral
  • João Carlos Lopes
  • João Dias

The external dependency of many industries and the corresponding low value added generated in production create high external deficits and growing debt to GDP ratios in several open economies. In this paper we propose an empirical method to assess the evolution of these vulnerabilities, based on a new treatment of interindustry production multipliers. The (gross) output growth potential given by the column sums of the Leontief inverse matrix (backward linkage indicators) results from three terms: interindustry consumptions, value added and imported inputs. After a convenient arrangement of these terms, the evolution of backward linkage indicators can be used to detect structural changes, particularly quantifying a (net) growth effect (more value-added generation) and an external dependency effect (more imported inputs), and to classify the productive sectors accordingly. An application to the Portuguese Economy is made, using input-output tables for the years 1980, 1995 and 2005. This method can also be useful as a simple, but suggestive, device to compare the evolution of two or more economies, along their development processes in time.

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Paper provided by ISEG - Lisbon School of Economics and Management, Department of Economics, Universidade de Lisboa in its series Working Papers Department of Economics with number 2010/12.

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Date of creation: Jun 2010
Handle: RePEc:ise:isegwp:wp122010
Contact details of provider: Postal:
Department of Economics, ISEG - Lisbon School of Economics and Management, Universidade de Lisboa, Rua do Quelhas 6, 1200-781 LISBON, PORTUGAL

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  1. Chokri Dridi & Geoffrey Hewings, 2002. "An Investigation of Industry Associations, Association Loops and Economic Complexity: Application to Canada and the United States," Economic Systems Research, Taylor & Francis Journals, vol. 14(3), pages 275-296.
  2. Miller,Ronald E. & Blair,Peter D., 2009. "Input-Output Analysis," Cambridge Books, Cambridge University Press, number 9780521517133, December.
  3. Miller,Ronald E. & Blair,Peter D., 2009. "Input-Output Analysis," Cambridge Books, Cambridge University Press, number 9780521739023, December.
  4. Jan Oosterhaven & Dirk Stelder, 2002. "Net Multipliers Avoid Exaggerating Impacts: With A Bi-Regional Illustration for the Dutch Transportation Sector," Journal of Regional Science, Wiley Blackwell, vol. 42(3), pages 533-543.
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