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Estimation of commodity-by-commodity input–output matrices


  • Bohlin, Lars

    () (Department of Business, Economics, Statistics and Informatics)

  • Widell, Lars M

    (Department of Business, Economics, Statistics and Informatics)


In this paper we derive a method for the estimation of symmetric input–output tables (SIOTs), which makes it possible to use the commodity technology assumption even when use- and make tables are rectangular. The method also solves the problem of negative coefficients. In the empirical part we derive annual SIOTs in order to evaluate the differences between SIOTs calculated with different methods and the change in technical coefficients over time. Our results, based on data for Sweden, show that the impact of using different technology assumptions is rather large. However, in a factor content of trade application the impact of different technology assumptions does not seem to be very important. Also the size of the changes in the technical coefficients over time is found to be quite large, indicating the importance of calculating SIOTs annually.

Suggested Citation

  • Bohlin, Lars & Widell, Lars M, 2004. "Estimation of commodity-by-commodity input–output matrices," Working Papers 2004:14, Örebro University, School of Business.
  • Handle: RePEc:hhs:oruesi:2004_014

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    References listed on IDEAS

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    Cited by:

    1. Louis Mesnard, 2011. "Negatives in symmetric input–output tables: the impossible quest for the Holy Grail," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 46(2), pages 427-454, April.
    2. Tarancon, Miguel Angel & Del Río, Pablo, 2012. "Assessing energy-related CO2 emissions with sensitivity analysis and input-output techniques," Energy, Elsevier, vol. 37(1), pages 161-170.

    More about this item


    Input-output model; commodity technology; product technology; factor content of trade;

    JEL classification:

    • C67 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Input-Output Models
    • F11 - International Economics - - Trade - - - Neoclassical Models of Trade


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