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Концентрация И Конкуренция В Современном Банковском Секторе Сербии: Перемены И Декомпозиция Индекса Херфиндаля – Хиршмана
[Concentration and Competition in Modern Banking Sector of Serbia: Changes and Decomposition of Herfindahl – Hirschman Index]

Author

Listed:
  • Bukvić, Rajko

Abstract

Russian. В статье рассматриваются степень и перемены в концентрации в банковском секторе Сербии (без Косова и Метохии) во второй половине второго и начале третьего десятилетия. В первой части обсуждаются основные теоретические и методологические вопросы исследования концентрации и конкуренции, и специфичности конкуренции в банковском секторе. Указывается на значение выбора переменных для вычисления показателей концентрации и выбирает в этом качестве следующие: активы, депозиты, капитал, доход и кредиты. В последующей части на основе индекса Херфиндаля – Хиршмана показано, что степень концентрации низкая, хотя и близкая умеренной. Наконец, проведена декомпозиция изменений индекса концентрации на две части: неравенство в распределении рыночных долей и число банков. Вклады двух факторов неравномерные и варьируют по годам. Среди выделенных типов перемен преобладает тип VI (уменьшение неравенства рыночных долей и уменьшение числа банков, причём первое по абсолютном значении больше). Но, в 2021 г. (I–VI) для всех переменных произошло изменение типа I (рост компоненты неравенства и уменьшение числа банков). Оказалось, что индекс концентрации не рос, хотя число банков постоянно уменьшалось и компонент числа банков имел в большинстве случаев даже больший вклад в перемены индекса концентрации. English. Paper considers the degree and changes in concentration in banking sector of Serbia (without Kosovo and Metohia) in the second half of 2010s and beginning of 2020s. In the first part the main theoretical and methodological questions of the research of concentration and competition were presented, and the characteristics of competition in banking sector. Author emphasizes the importance of the choice of variables for the calculation of concentration indices and chooses next variables: assets, deposits, capital, operating income, and loans. In the next part using the Herfindahl – Hirschman index it was shown that the degree of concentration is low, although close to moderate. At the end, it were decomposed the changes of concentration into two factors: inequality in market shares distribution and number of banks. Impacts of two factors are not equal and vary through the years. Among the six types of changes the type VI prevails in many cases (decrease of inequality of market shares and decrease of number of banks). But, in 2021 (I–VI) for all variables type of changes I happens (increase of inequality and decrease of number of banks). It was shown that in general concentration index was not increased, although the number of banks constantly decreased and component of inequality in many cases had greater impact on the changes of concentration index than the component of inequality.

Suggested Citation

  • Bukvić, Rajko, 2022. "Концентрация И Конкуренция В Современном Банковском Секторе Сербии: Перемены И Декомпозиция Индекса Херфиндаля – Хиршмана [Concentration and Competition in Modern Banking Sector of Serbia: Changes ," MPRA Paper 112928, University Library of Munich, Germany, revised 2022.
  • Handle: RePEc:pra:mprapa:112928
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    References listed on IDEAS

    as
    1. Leslie Hannah & J. A. Kay, 1977. "The Measurement of Concentration," Palgrave Macmillan Books, in: Concentration in Modern Industry, chapter 4, pages 41-63, Palgrave Macmillan.
    2. Cetorelli, Nicola, 2004. "Real Effects of Bank Competition," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 36(3), pages 543-558, June.
    3. Leslie Hannah & J. A. Kay, 1977. "Concentration in Modern Industry," Palgrave Macmillan Books, Palgrave Macmillan, number 978-1-349-02773-6, July.
    4. Dragan Lončar & Vesna Rajić, 2012. "Concentration And Competitiveness O The Banking Market In Serbia: Current Situation And Possible Future Changes Under The Influence Of Market Consolidation," Serbian Association of Economists Journal, SAE - Serbian Association of Economists, issue 7-8, pages 372-385, December.
    5. Oscar Bajo & Rafael Salas, 2002. "Inequality foundations of concentration measures: An application to the Hannah-Kay indices," Spanish Economic Review, Springer;Spanish Economic Association, vol. 4(4), pages 311-316.
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    JEL classification:

    • C38 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Classification Methdos; Cluster Analysis; Principal Components; Factor Analysis
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General
    • L19 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Other

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