IDEAS home Printed from
   My bibliography  Save this article

The ECA-method for Identifying Sensitive Reactions within an IO Context


  • Hermann Schnabl


The paper introduces an alternative method to determine "sensitivity' within an input-output-context and makes the most sensitive connections visible in an overall graph. The method called ECA (Elasticity Coefficient Analysis) tries—like the Important Coefficient Analysis (ICA)—to derive structures from a certain property of the Leontief inverse. As the core of the method is elasticity—i.e. taking the relative reaction of the element bij of the inverse as a measure of response to a 1% change of the input coefficient aij—it describes the dynamic potential of certain sectors on possible changes of technical coefficients. In the second part of the paper, comparisons are made between the results of MFA (Minimal Flow Analysis), ICA and ECA upon using the same table for analysis. ICA and ECA to some extent show similarities but also some differences. Both contrast with MFA with respect to the very basis of the approach that enforces different interpretations of the results. Finally, some hypotheses on the differences and similarities are set up that could give a perspective for the further use of the different methods.

Suggested Citation

  • Hermann Schnabl, 2003. "The ECA-method for Identifying Sensitive Reactions within an IO Context," Economic Systems Research, Taylor & Francis Journals, vol. 15(4), pages 495-504.
  • Handle: RePEc:taf:ecsysr:v:15:y:2003:i:4:p:495-504
    DOI: 10.1080/0953531032000152344

    Download full text from publisher

    File URL:
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    1. Fidel Aroche-Reyes, 2002. "Structural Transformations and Important Coefficients in the North American Economies," Economic Systems Research, Taylor & Francis Journals, vol. 14(3), pages 257-273.
    Full references (including those not matched with items on IDEAS)


    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.

    Cited by:

    1. Tarancon, M.A., 2006. "Locating the Most Important Transactions of the Economy by an Alternative Sensivity Analysis. Application to the Employment Structure of Nine European Countries," Regional and Sectoral Economic Studies, Euro-American Association of Economic Development, vol. 6(1).
    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.
    3. Chong YIN & Zhi Yuan YANG, 2016. "The Inter-Industrial Linkage Indicators (Iili): A Contribution For The Measurement Of The Industrial Structure Evolution In China (2002, 2007)," Applied Econometrics and International Development, Euro-American Association of Economic Development, vol. 16(1).
    4. Tarancon, Miguel Angel & del Rio, Pablo, 2007. "CO2 emissions and intersectoral linkages. The case of Spain," Energy Policy, Elsevier, vol. 35(2), pages 1100-1116, February.
    5. Ana Salomé García Muñiz & Fidel Aroche Reyes & Carmen Ramos Carvajal, 2007. "Determinación de coeficientes importantes por niveles tecnológicos: una aproximación desde el modelo de Miyazawa," Investigaciones Economicas, Fundación SEPI, vol. 31(1), pages 161-190, January.


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:ecsysr:v:15:y:2003:i:4:p:495-504. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Chris Longhurst). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.