Agricultural Issues Center
      University of California
      1 Shields Avenue
      Davis, California 95616
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 Analysis of California agricultural issues

The University of California Agricultural Issues Center (AIC) is a statewide program within UC Agriculture and Natural Resources.
We study topics such as international markets, invasive pests and diseases, the value of agricultural research and development, agricultural policy and the rural environment among others. The issues are often global, but we emphasize implications for agriculture and natural resources in California. The audience for AIC research and outreach includes decision makers in agriculture and government, scholars and students, journalists and the general public.

Media items:

- Hen Houses Have To Make Room
- Egg prices are on the rise

- Why egg prices will likely rise in 2015

- Almonds Generate 100,000 Jobs
- The rise of American olive oil
- Agriculture and Climate Change
- Drought and California rice

- Drought and Consumer prices

- U.S. forage product exports

- Brown Where Green Used to Be

- Almond production













Effects of housing system on the costs of commercial egg production
W. A. Matthews and D. A. Sumner. Poultry Science, December 2014.
This article reports the first publicly available egg production costs compared across 3 hen-housing systems.

CSAlogoClimate-smart agriculture global research agenda: scientific basis for action
This paper arose from the Climate-Smart Agriculture Global Science Conference in 2013. Climate-smart agriculture (CSA) addresses the challenge of meeting the growing demand for food, fibre and fuel, despite the changing climate and fewer opportunities for agricultural expansion on additional lands.

$3 million study aims to boost health of immigrant Latino farmworkers
A new, collaborative study aimed at designing and evaluating worksite-based health programs to lower the risk of obesity and diabetes among immigrant Latino farmworkers has been launched under the leadership of the University of California, Davis.

Contributions of the California Almond Industry to Local, State and National Economies   (click for full report)

Daniel A. Sumner, William A. Matthew, Josué Medellín-Azuara and Adrienne Bradley Dec 2014.
This report describes the growth and current economic relationships in the California almond industry and then estimates the economic contributions and impact of the industry in California and in the Central Valley where the almond orchards and much of the processing are located.

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.

Economic Analysis of the 2014 Drought for California Agriculture
Richard Howitt, Josué Medellín-Azuara, Duncan MacEwan, Jay Lund, and Daniel Sumner. Center for Watershed Sciences University of California, Davis. July 15 2014.

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.  

Climate Change:
Challenges to California’s Agriculture and Natural Resources


AIC Director Dan Sumner (L) adresses the Climate Change: Challenges to California’s Agriculture and Natural Resources Conference in Sacramento.

- Media article: Sacramento Bee

UC Drought Science, Policy and Management Summit
- AIC Director Dan Sumner's slides available here. All slides available here.
- Video of the conference available here.
- Photos available here.

Greenhouse Gas Mitigation Opportunities in California Agriculture. Review of the Economics.
Hyunok Lee and Daniel Sumner.Duke University, Nicholas Institute for Environmental Policy Solutions.
Although about three-quarters of California farm revenue derives from crop production, crops—mainly tree, vine, and vegetable crops—account for only about one-quarter of GHG emissions.

Greenhouse Gas Mitigation Opportunities in California Agriculture. Outlook for California Agriculture to 2030.
Hyunok Lee and Daniel Sumner.Duke University, Nicholas Institute for Environmental Policy Solutions.
This report examines the statewide greenhouse gas (GHG) emissions and emissions mitigation potential of alternative futures for California agriculture through 2030.

Study aims to boost health of immigrant Latino farmworkers
A new, collaborative study aimed at designing and evaluating worksite-based health programs to lower the risk of obesity and diabetes among immigrant Latino farmworkers.

Crop Supply Dynamics and the Illusion of Partial Adjustment

Nathan P. Hendricks, Aaron Smith and Daniel A. Sumner, American Journal of Agricultural Economics 2014.
We use field-level data to estimate the response of corn and soybean acreage to price shocks.

The Effects of Policy Expectations on Crop Supply, with an Application to Base Updating

Nathan P. Hendricks and Daniel A. Sumner American Journal of Agricultural Economics 2014.
We develop a dynamic model to assess the effects of policy expectations on crop supply and illustrate the approach with estimates of the effects of base updating in U.S. crop programs.

Estimating Gravity Equation Models in the Presence of Sample Selection and Heteroskedasticity
Bo Xiong and Sixia Chen
Gravity models are widely used to explain patterns of trade. However, two stylized features of trade data, sample selection and heteroskedasticity, challenge the estimation of gravity models.

The 2014 Farm Bill, Commodity Subsidies, and California Agriculture.
Hyunok Lee and Daniel A. Sumner. ARE Update, Vol. 17, No. 4, Mar/Apr, 2014

Forum examines economic growth and universities
Among those speaking was AIC Director Daniel Sumner. The forum is an outgrowth of a book called “Public Universities and Regional Growth,” which focuses on six University of California campuses. The book will be published in Mayby Stanford University Press.

Labor, Water, and California Agriculture in 2014
Friday, April 18, 2014, UC Davis Law School
Click for AIC Director Dan Sumner’s slide presentation.

2012 California Export Data (click link to left for full file, or select individual tables below)
Table 1 - California agricultural product export values and rankings, 2010--2012
Table 2 - California Share of U.S. Agricultural Exports by Category and Commodity, 2011-2012
Table 3 - Major Destinations for California Agricultural Exports, 2011 and 2012
Table 4 - Major California agricultural exports to the top 15 destinations, 2011 and 2012
Table 5 - Major California agricultural exports to the European Union, 2011 and 2012
Table 6 - Ratio of California farm quantity exported to farm quantity produced, 2011 and 2012
Click here for previous years data

The 2014 Farm Bill: Specialty Crop Programs, Food Safety & FSMA and Thoughts for the Future
AIC Director Daniel Sumner on 2014 Farm Bill Specialty Crop Programs (audio)

A New Market for an Old Food: the U.S. Demand for Olive Oil
Bo Xiong, Daniel Sumner, William Matthews
- see also media article: The coming rise of pure, premium, American olive oil

MOCA: The Measure of California Agriculture
This publication documents California agriculture and its relationships to the rest of the economy by providing statistical details and an overview of unifying forces and trends. Selected key facts are also listed in a brochure format.
Highlights - The Measure of California Agriculture, updated 2012.

Disentangling Demand-enhancing and Trade Cost Effects of Maximum Residue Regulations
Bo Xiong and John Beghin
Maximum residue level (MRL) regulations in plant products can create unnecessary trade barriers on one hand and enhance demand via risk mitigation or quality assurance on the other.
Ohter papers by AIC post-doctoral scholar Bo Xiong
- Estimating Gravity Equation Models in the Presence of Sample Selection and Heteroskedasticity
- Stringent Maximum Residue Limits, Protectionism, and Competitiveness: The Cases of the US and Canada.

Statistical Review of California's Organic Agriculture 2009-2012
October 2013, pdf, 732KB) Karen Klonsky, Brian D. Healy. This publication quantifies the current size and growth of the organic industry in California in terms of acres, farm gate sales and number of growers statewide and by commodity, commodity group, county, and region, based on California Department of Agriculture registration data from 2009 - 2012.

AIC White Papers on California Agricultural Issues
This series of 15 AIC white papers outlines many major issues facing California agriculture.  They describe the important factual circumstances, policies and economic relationships surrounding each issue. 

Asian Citrus Psyllid Management
The deadly huanglongbing is spreading towards California and threatens commercial citrus production. 

The OSU-UCD Partnership for Agricultural & Resource Policy Research (OreCal) is a collaboration between the Center for Agricultural & Environmental Policy at Oregon State University and the University of California Agricultural Issues Center.
OreCal presentations by AIC Director Dan Sumner:
- Risk Management and Commodity Policy OreCal Review
- Local and National Government-set rules for Production of Agricultural Products

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Unless indicated otherwise, all material on this website © University of California AgriculturaI Issues Center.