Researchers doubt however that authorities will revise established french classification.

A test of Bordeaux wine rating services for fine vintages shows that the three most prominent authorities are consistent in their ratings. Thus, consumers can confidently rely on those ratings if they wish, according to a new wine classification study from Cornell's Center for Hospitality Research. At the same time, an examination of those modern-day ratings found that the existing French classification of Bordeaux wine châteaux, developed in 1855, is out of date.

A key conclusion of the authors is that consumers of fine wines can rely on any of the three major wine rating systems – which are Robert Parker's Wine Advocate, Steven Tanzer's International Wine Cellar, and the Wine Spectator. "Certainly wine purchasers can rely on their own good judgment, but we found strong congruence among the ratings of these three services throughout the 339 combinations of vintage and château that we tested," noted Thompson, who is a professor of operations management at Cornell. "However, because one rater is consistently higher than the others, consumers should not consider all equally-rated wines as being equally good, when those ratings are coming from different sources."

Wine Rating System for Châteaux Has Not Aged Well, According to New Report

Mutkoski, who is Banfi Vintners Professor of Wine Education and Management, explained that the researchers' findings with regard to Bordeaux wine classifications for châteaux mean that consumers cannot rely entirely on those rankings. "In preparation for the 1855 World Exposition, the French established a five-rank classification for the châteaux, and those rankings, known as growths, have remained the same to this day," he said.

"Based on the wine scores that we analyzed, however, some châteaux have moved up in rank, while others have faded. While we doubt that the 1855 classification will be revised, market prices for these producers reflect the new standings. In fact, our findings are a tribute to those producers who have maintained or exceeded their classification in the past 150 years."

The Bordeaux wine classification study specifies which châteaux have moved up in rank, based on the ratings from Parker, Tanzer, and Wine Spectator. As a final note for the hospitality industry, the authors point out that certain wine prices do not correspond perfectly with quality. Thus, sommeliers can – for instance – offer their customers an excellent wine at a relatively modest price.

Available at no charge from the center's website, the study, "An Analysis of Bordeaux Wine Ratings, 1970-2005: Implications for the Existing Classification of the Médoc and Graves,"
( www.hotelschool.cornell.edu/research/chr/pubs/reports/2008.html )
is written by the Cornell-based team of Gary M. Thompson, Stephen A. Mutkoski, Youngran Bae, Liliana Ielacqua, and Se Bum Oh. Bae, Ielacqua, and Oh are graduates of the Master of Management in Hospitality program at the Cornell School of Hotel Administration.

Meet and interact with Dr. Thompson, an active member of the executive education faculty at the School of Hotel Administration, when he presents sessions in the Professional Development Program: www.hotelschool.cornell.edu/industry/executive/pdp/.

Thanks to the support of the Center for Hospitality Research partners listed below, all Cornell Hospitality Reports and Tools are made available free of charge from the center's website, www.chr.cornell.edu.

About The Center for Hospitality Research
A unit of the Cornell School of Hotel Administration, The Center for Hospitality Research (CHR) sponsors research designed to improve practices in the hospitality industry. Under the lead of the center's 71 corporate affiliates, experienced scholars work closely with business executives to discover new insights into strategic, managerial and operating practices. The center also publishes the award-winning hospitality journal, the Cornell Hospitality Quarterly (formerly the Cornell Hotel and Restaurant Administration Quarterly). To learn more about center and its projects, visit www.chr.cornell.edu.