Timothy Park

Associate Director


Timothy Park is Chief of the Food Markets Branch (FMB) in the Food Economics Division at ERS and has served in this position since January 2012, except for a detail as a Senior Economist at the White House's Council of Economic Advisors from June 2015 to June 2016. Tim’s research has focused on 1) productivity and efficiency measurement in the food retail industries, and 2) understanding linkages between the performance of the food supply chain and the food and nutritional choices of consumers.


At the Council of Economic Advisors, Tim was in charge of agriculture, food, and rural resource policy, along with infrastructure and transportation issues. He previously served as the Farm Income Team Leader in ERS’s Resource and Rural Economics Division.

Before joining ERS in 2009, Tim was a professor at the University of Georgia in the Department of Agricultural and Applied Economics for 16 years. His research and teaching responsibilities covered the productivity and efficiency analysis of food industries, agricultural finance, and applied econometrics. From January 2012 to June 2013, Tim was co-editor of Applied Economic Perspectives and Policy; he received the 2011 President’s Award of the Agricultural and Applied Economics Association (AAEA) for outstanding leadership as an inaugural editor of the journal.


Tim holds a Ph.D. in Agricultural Economics from the University of California, Davis. He received a B.S.F.S. in International Economics from Georgetown University.

Professional Affiliations

Tim is a member of the Agricultural and Applied Economics Association. He currently serves on the Editorial Council of Agricultural Economics.

Selected Publications

Volpe, R.J., T.A. Park, H.H. Jensen, and F. Dong. 2016. "Somatic Cell Counts in Dairy Marketing: Quantile Regression for Count Data," European Review of Agricultural Economics 43(2):331-58, April.

Park, T.A. 2015. "Direct Marketing and the Structure of Farm Sales: An Unconditional Quantile Regression Approach," Journal of Agricultural and Resource Economics 40(2):266-84.

Park, T.A. 2014. "Assessing Performance Impacts in Food Retail Distribution Systems: A Stochastic Frontier Model Correcting for Sample Selection," Agricultural and Resource Economics Review 43(3):373-89, December.

Park, T.A., A. Mishra, and S. Wozniak. 2014. "Do Farm Operators Benefit from Direct to Consumer Marketing Strategies?" Agricultural Economics 45(2):213-24.

Park, T.A., and J. Sauer. 2013. "Evaluating Food Retailers Using Dual Elasticities of Substitution," Journal of Productivity Analysis 39(2):111-22.

Lohr, L., and T.A. Park. 2012. "Demand for Private Marketing Expertise by Organic Farms: A Quantile Analysis Based on Counts," Journal of Agricultural and Applied Economics 44(2):157-71, May.

Featherstone, A., T.A. Park, and J. Weber. 2012. "Keeping ARMS Relevant:  Extracting Additional Information from Agricultural Resource Management Survey," Agricultural Finance Review 72(2):233-46.

Park, T.A., and E.E. Davis. 2011. "Productivity and Efficiency Impacts of Human Resources Practices in Food Retailing," Applied Economics 43(30):4689-97, December.

Park, T.A., and L. Lohr. 2010. "The Influence of Local Selling Decisions on Organic Farm Incomes," Journal of Agricultural & Food Industrial Organization 8(1): Article 6.

Park, T.A., and L. Lohr. 2010. "Assessing the Technical and Allocative Efficiency of U.S. Organic Producers," Journal of Agricultural and Applied Economics 42(2):247-59, May.

Lohr, L., and T.A. Park. 2009. "Labor Pains: Valuing Seasonal vs. Year-Round Labor on Organic Farms," Journal of Agricultural and Resource Economics 34(2):316-31, August. 

Sauer, J., and T.A. Park. 2009. "Organic Farming in Scandinavia—Productivity and Market Exit," Ecological Economics 68(8-9):2243-54, 2009.

Davis, E., M. Freedman, J. Lane, B. McCall, N. Nestoriak, and T.A. Park. 2009. "Product Market Competition and Human Resource Practices: An Analysis of the Retail Food Sector," Industrial Relations 48(2):350-71, April.

Park, T. 2009. "Assessing the Returns from Organic Marketing Channels," Journal of Agricultural and Resource Economics 34(3):483-97.