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Alternative Limited Cognitive Opportunities of the Herfindal-Hirschman Index for Studying Irregularities


  • Nina Yankova


A single methodological approach is presented to study structural changes and irregularities, based on the Euclidean distance and the possibility to decompose the total structural change into 2 factor impacts: d3 - changing the irregularity degree and d4 - changing the irregularity direction. The cognitive opportunities of the Herfindal-Hirschman Index to study the irregularities are elucidated therein. It was proven that only the factor impact d3 is recorded by means of this index. Arguments are provided for the necessity to record the dimensions of the statistic structure in the course of assessment of the irregularity degree of evolving complex processes and phenomena, characterized by internal structure. The Euclidean distance is applied to elaborate a table for limiting 3 degrees of irregularities according to the size of the tested statistical structure.

Suggested Citation

  • Nina Yankova, 2010. "Alternative Limited Cognitive Opportunities of the Herfindal-Hirschman Index for Studying Irregularities," Economic Thought journal, Bulgarian Academy of Sciences - Economic Research Institute, issue 5, pages 66-80.
  • Handle: RePEc:bas:econth:y:2010:i:5:p:66-80

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    References listed on IDEAS

    1. Zizi Goschin & Daniela L. Constantin & Monica Roman & Bogdan Ileanu, 2009. "Regional Specialisation and Geographic Concentration of Industries in Romania," South-Eastern Europe Journal of Economics, Association of Economic Universities of South and Eastern Europe and the Black Sea Region, vol. 7(1), pages 99-113.
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    JEL classification:

    • C40 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - General
    • C68 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computable General Equilibrium Models


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