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Wine and Winegrapes

Vinum Verum Viribus? Systematic Errors in Wine Alcohol Labels
Julian M. Alston, Kate B. Fuller, James T. Lapsley, George Soleas, and Kabir P. Tumber from ARE Update Mar/Apr, 2016
Using international data for 18 vintages, we find systematic differences between the actual and stated alcohol content of wine. Our results suggest that rising alcohol content of wine may be a nuisance by-product of producer responses to evolving market and production environments

“Tested Quality in the Glass”: Wine Quality Certification In Germany
Henrich Brunke, James T. Lapsley, Rolf A.E. Mueller & Ludwig Tauscher AAWE Working Paper No. 193 – Economics
In order to reduce buyers’ information gaps, wine sellers provide information about the wine on one or several labels attached to the bottle. Wine buyers' problem then is to interpret this information and to assess its veracity. Institutional arrangements have emerged in Germany, as in other wine producing countries, that standardize communication between wine sellers and buyers, and that reduce the risk of wine buyers being misled by the information provided by the sellers. Core elements of the institutions are (i) verifiable wine quality categories or grades, (ii) wine examination by independent experts and certification of the information items provided by the wine bottler, and (iii) rules for the content and form of labeling information. Wines that satisfy all legal requirements for a quality wine are deemed to be "Tested Quality in the Glass". They are recognizable by a number that is issued for each wine that has passed examination; the number must be printed on the label. The objectives of this study are three: (i) to provide an English-language description of the German wine quality certification system, together with a summary of its legal basis; (ii) to describe an alternative private wine certification system that has been grafted onto the pubic system, and (iii) to encourage readers to think about how datafication of wine and digitization of wine certification may transform the "Tested Quality in the Glass" system

Consumer sorting and hedonic valuation of wine attributes: exploiting data from a field experiment.

Christopher R. Gustafson,Travis J. Lybbert, Daniel A. Sumner. 2015.
This article uses a novel experimental approach to measure consumer willingness to pay (WTP) for wine attributes.

Napa Earthquake and the Wine Industry

James T. Lapsley and Daniel A. Sumner.August 26, 2014
The August 24, 2014 Napa earthquake has garnered broad attention worldwide; potential effects on the wine industry and markets are particularly of interest. Reports in the Wall Street Journal, Bloomberg Financial News, the New York Times and other media raise questions about how the quake will affect the price of wine and the economics of wine markets.

Introduction to Wine Trade Weighted Exchange Rates. Georgi T. Gabrielyan.
What Drives Imports and Exports of Bulk Wine? James T. Lapsley
Presentations to California Association of Winegrape Growers, April 2015.

Public Universities and Region Growth:  Insights from the University of California
.book cover
AIC researchers Jim Lapsley and Dan Sumner have just published a book chapter, "We Are Both Hosts," that highlights the synergistic interaction between Napa wine industry and the University of California, Davis. Their research appears as a chapter in the new book, Public Universities and Region Growth: Insights from the University of California, which was recently published by Stanford University Press. The chapter “We Are Both Hosts”, examines agricultural innovation by focusing on the interaction between Napa valley wineries and vineyards and the U.C. Davis Department of Viticulture and Enology. Tracing the growth in the production of and market for quality wine, the chapter reviews the development and adoption of viticultural and enological innovations from the 1950s to the present and analyzes the effects of U.C. Davis outreach, teaching and research.

The Benefits from Certified Virus-Free Nursery Stock: A Case Study of Grapevine Leafroll-3 in the North Coast Region of California

Kate B. Fuller, Julian M. Alston, and Deborah A. Golino.
Working paper from the Center for Wine Economics.

The Elasticity of Demand for California Winegrapes.

Fuller, Kate B. and Julian Alston.

An Introduction to California Wine

Presentation slides from AIC Researcher Jim Lapsley.

The U.S. Wine Market in 2030 and Export/Import Market Dynamics
Presentation by AIC researcher Jim Lapsley at Wine Industry Symposium, May 2013.

"We are Both Hosts" UC Davis and Napa wine industry.
Presentation by AIC researcher Jim Lapsley.

The U.S. Wine Market in a Global Context

Presentation by Jim Lapsley, Jan 2012.

Clusters of Grapes and Wine
Rolf A.E. Mueller, Daniel A. Sumner and James T. Lapsley. (Sept 2010, pdf, 140 kb) This article considers application of a clusters approach to the California wine industry.

Winegrapes and Nuts: Historical Review of Production in the SJV and Implications for the Future.
AIC researcher Jim Lapsley's presentation at the 30th Annual Agribusiness Management Conference at Fresno State.

Economic Implications of the Import Duty and Excise Tax Drawback for Wine Imported into the United States
( August, 2011, pdf, 1MB) Daniel A. Sumner, James T. Lapsley and John Thomas Rosen-Molina.
This study explains how wine imports and exports and related grape prices and quantities are influenced by a federal program that allows refunds to wine exporters of 99% of the import duties and excises taxes paid on “commercially interchangeable” wine imports.

Toward a Common Standard: New European Union Label Laws and Geographic Indicators of Origin
A seminar, co-sponsored by the Agricultural Issues Center and focusing on wine laws related to wine trade names and appellations — the legally defined and protected geographical regions where wine grapes are grown — will be held June 2 to 4 at the University of California, Davis.

The Central Valley Winegrape Industry and the World Market for Wine
AIC Director Dan Sumner's presentation at the San Joaquin Valley Grape Symposium, January 2011.
See also: media coverage of the event.

Winegrapes vs. Nuts: An Historical Review of Production in the San Joaquin Valley and Implications for the Future

AIC Researcher Jim Lapsley's presentation at the San Joaquin Valley Grape Symposium, January 2011.

From Angelica to Zinfandel (Port): A brief history of California dessert wine production
AIC Researcher Jim Lapsley's presentation for a recent course on dessert wines, January 2011.
See also: media coverage of the event.




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