Context and cross-section data improve analyses of wine ratings
Jeffrey Bodington
Journal of Wine Economics, 2024, vol. 19, issue 4, 356-364
Abstract:
Much research shows that the ratings that critics, judges, and consumers assign to wines are heteroscedastic. A rating observed is one draw from a latent distribution that is wine- and judge-specific. Estimating the shape of a rating’s distribution by minimizing a sum of cross entropies has been proposed and tested. This article proposes a method of improving the accuracy of that estimate by using information about the context of a wine competition or cross-section ratings data. Tests using the distributions implied by 90 blind triplicate ratings show that the sum of squared errors for the solution using context or cross-section information is 50% more accurate than not using such information and over 99% more accurate than ignoring the uncertainty about a rating.
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:cup:jwecon:v:19:y:2024:i:4:p:356-364_4
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