AAWE, Economics Dept, New York University, 19 W 4th St, 6Fl., New York NY 10012aawe@wine-economics.org

AAWE Working Paper No. 180 – Economics


 Reducing Quality Uncertainty for Bordeaux en primeur Wines: A Uniform Wine Score

Jean-Marie Cardebat and Emmanuel Paroissien


In this paper we provide a simple and transparent non parametric methodology to express the scores of each wine expert (15) on the same rating scale. We discuss the advantage of this methodology over a linear transformation. The non paramatric method ensures the comparability of scores among experts and allows for a relevant average calculation of available wine scores. This approach may be usefuel to wine professionals who seek to reduce uncertainties leading to improved market efficiency. Uniform scores for many Bordeaux en primeur wines can be freely accessed at globalwinescore.com.

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