Globalization, Superstars, and Reputation: Theory & Evidence from the Wine Industry*

Michael Gibbs, Mikel Tapia and Frédéric Warzynski

Journal of Wine Economics, 2009, vol. 4, issue 1, 46-61

Abstract: We develop a simple model of the effects of reputation on prices. An increasing fraction of consumers who are “naive” (less informed about quality) results in a stronger sensitivity of prices to ratings of quality. We then argue that this may be a factor in price dynamics for goods that become more widely traded as a result of globalization. We then provide some empirical analysis of these ideas using data on prices and Robert Parker's ratings of wines. Wine prices are strongly related to ratings, and even more so for higher quality wine categories. In addition, changes in Parker ratings for the same wine result in large price changes. Price elasticities with respect to ratings have risen dramatically since 1993. One plausible explanation for this is the growing globalization of the fine wine market, which increases the prevalence of naive wine consumers. (JEL Classification: D8, F1, L1, Q1)

Date: 2009
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