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Bibliometric indices as a measure of performance and competitive balance in the knockout stage of the UEFA Champions League

Author

Listed:
  • László Csató

    (HUN-REN Institute for Computer Science and Control (HUN-REN SZTAKI)
    Corvinus University of Budapest)

  • Dóra Gréta Petróczy

    (Eötvös Loránd Research Network (ELKH)
    John von Neumann University)

Abstract

We argue for the application of bibliometric indices to quantify the long-term uncertainty of outcome in sports. The Euclidean index is proposed to reward quality over quantity, while the rectangle index can be an appropriate measure of core performance. Their differences are highlighted through an axiomatic analysis and several examples. Our approach also requires a weighting scheme to compare different achievements. The methodology is illustrated by studying the knockout stage of the UEFA Champions League in the 20 seasons played between 2003 and 2023: club and country performances as well as three types of competitive balance are considered. Measuring competition at the level of national associations is a novelty. All results are remarkably robust concerning the bibliometric index and the assigned weights. Since the performances of national associations are more stable than the results of individual clubs, it would be better to build the seeding in the UEFA Champions League group stage upon association coefficients adjusted for league finishing positions rather than club coefficients.

Suggested Citation

  • László Csató & Dóra Gréta Petróczy, 2024. "Bibliometric indices as a measure of performance and competitive balance in the knockout stage of the UEFA Champions League," Central European Journal of Operations Research, Springer;Slovak Society for Operations Research;Hungarian Operational Research Society;Czech Society for Operations Research;Österr. Gesellschaft für Operations Research (ÖGOR);Slovenian Society Informatika - Section for Operational Research;Croatian Operational Research Society, vol. 32(4), pages 961-988, December.
    • Handle: RePEc:spr:cejnor:v:32:y:2024:i:4:d:10.1007_s10100-023-00896-8
    DOI: 10.1007/s10100-023-00896-8
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    Keywords

    Competitive balance; Ranking; Scientometrics; UEFA Champions League; Uncertainty of outcome;
    All these keywords.

    JEL classification:

    • C43 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Index Numbers and Aggregation
    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General
    • Z20 - Other Special Topics - - Sports Economics - - - General

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