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Rate the Raters: A Note on Wine Judge Consistency

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  • Bodington, Jeffrey

Abstract

Much literature shows that the ratings assigned by wine judges are uncertain, some authors have proposed that judges be tested, and a few wine competitions do test judges. However, no literature or competition has yet proposed a test or rating for judges based on realistic competition conditions. This article uses coefficients of multiple correlation to rate each of 54 judges who assigned ratings to 2,811 wines entered in a commercial competition. Results show that there is a strong and positive correlation between the ratings assigned by most judges to most wines. However, those correlations also show that the ratings assigned by approximately 10% of judges are indistinguishable from random assignments. Using correlations to rate the raters, a program is underway to monitor those judges and variations in competition protocol that may affect their ratings. (JEL Classifications: A10, C00, C10, C12, D12)

Suggested Citation

  • Bodington, Jeffrey, 2020. "Rate the Raters: A Note on Wine Judge Consistency," Journal of Wine Economics, Cambridge University Press, vol. 15(4), pages 363-369, November.
    • Handle: RePEc:cup:jwecon:v:15:y:2020:i:4:p:363-369_1
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    Citations

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    Cited by:

    1. Clarissa Laura Maria Spiess Bru, 2023. "Does the Tasting Note Matter? Language Categories and Their Impact on Professional Ratings and Prices," Working Papers Dissertations 105, Paderborn University, Faculty of Business Administration and Economics.
    2. Gergaud, Olivier & Ginsburgh, Victor & Moreno-Ternero, Juan D., 2021. "Wine Ratings: Seeking a Consensus among Tasters via Normalization, Approval, and Aggregation," Journal of Wine Economics, Cambridge University Press, vol. 16(3), pages 321-342, August.
    3. Barberà, Salvador & Bossert, Walter & Moreno-Ternero, Juan D., 2023. "Wine rankings and the Borda method," Journal of Wine Economics, Cambridge University Press, vol. 18(2), pages 122-138, May.
    4. Bernd Frick & Clarissa Laura Maria Spiess Bru & Daniel Kaimann, 2023. "Are Women (Really) More Lenient? Gender Differences in Expert Evaluations," Working Papers Dissertations 106, Paderborn University, Faculty of Business Administration and Economics.

    More about this item

    JEL classification:

    • A10 - General Economics and Teaching - - General Economics - - - General
    • C00 - Mathematical and Quantitative Methods - - General - - - General
    • C10 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - General
    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis

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