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Dr. Zoë T. Plakias

Assistant Professor

Dept. of Agricultural, Environmental and Development Economics

(The) Ohio State University

Faculty Affiliate 

InFACT Discovery Theme


STEAM Factory

Current Research Areas

Healthy, sustainable + fair supply Chains

Many people care about the impacts their food purchases have on their health, the environment and other people. I consider who is participating in these supply chains and the individual characteristics and incentives driving their decisions,  as well as whether these supply chains are truly meeting their stated goals.

Market power in the aG supply chain

As companies grow in size or market share, they may be able to exercise market power (the ability to set a higher selling price or a lower buying price than the competitive price). I consider the role of market power in the agricultural supply chain in the context of farm organizations, patent licensing and health policy.

Orgs + networks in the ag supply chain

Along with interacting in markets, farmers and food system stakeholders interact within and outside markets in farm organizations, cooperatives and social networks. I examine food system stakeholders' behavior in these settings and how these interactions connect to actions and outcomes in markets.


Publications + Working Papers


Peer-reviewed journal article

Direct Marketing Channel Choices Among U.S. Farmers: Evidence from the Local Food Marketing Practices Survey

Journal: Renewable Agriculture and Food Systems

Co-authors: Iryna Demko and Ani L. Katchova

Publication year: Forthcoming in 2019

Working paper (in review)

Tradeoffs in Farm to School Implementation: Larger Foodsheds and Longer Supply Chains Drive More Local Food Expenditures

Co-authors: H. Allen Klaiber and Brian E. Roe

Most recent version: 2018

Working paper (in review)

Voting for Mandatory Agricultural Producer Organizations: New Evidence from California

Co-authors: Rachael E. Goodhue and Jeffrey Williams

Most recent version: 2019

Peer-reviewed journal article 

Producer Heterogeneity and Voting Power in Mandatory US Agricultural Marketing Organisations [link to article]

Journal: European Review of Agricultural Economics

Co-authors: Rachael E. Goodhue

Publication year: 2015

Outreach publication

Growers’ Assessments of Challenges Facing the California Rice Industry: Past and Present [link to article]

Journal: ARE Update

Co-author: Rachael E. Goodhue

Publication year: 2016

Outreach publication

The Economic Contribution of Agricultural and Food Production to the Ohio Economy [link to report]

Format: Peer-reviewed department-published research report

Co-authors: Janice DiCarolis, Tim Haab, Ian Sheldon, Brent Sohngen, and Kelli Trinoskey

Publication year: 2017

Working paper

The Mexican PROCAMPO Farmland Subsidy and Its Effectiveness as a Rural Anti-Poverty Program

Co-authors: Ariadna Martínez González (first author) and Mark Partridge

Most recent version: 2019

Working paper

Measuring the Welfare Impacts of Local Food Sourcing by Institutions: A Cost-Benefit Analysis Approach

Co-authors: none

Most recent version: 2019

Outreach publication

Old Dog, New Tricks: The Changing Role of California’s Agricultural Marketing Organizations [link to article]

Journal: ARE Update

Co-authors: none

Publication year: 2013

Teaching + Advising

AEDE 2001: Principles of Food and Resource Economics

Spring Semester

This course serves as an introduction to microeconomics, with an emphasis on food and resource topics. It is a lecture-based course, with in-class activities and additional opportunities for class participation using online tools. This course is open to any undergraduates except those who've taken AEDECON 2001H or ECON 2001 and serves as a Social Sciences GE course (Human, Natural, and Economic Resources category). It is also a required course for the Agricultural and Applied Economics and EEDS majors.

AEDE 5330: Benefit-Cost Analysis

Spring Semester

This course covers the theory and practice of cost-benefit analysis. We analyze real cost-benefit analyses, read economic papers, and discuss timely issues (e.g., marijuana legalization, the opioid crisis, pollinator health, etc.). This course is open to advanced undergraduates who have taken AEDE 4310 (Environmental and Natural Resources Economics), AEDE 4001 (Managerial Economics) or ECON 4001 (Intermediate Microeconomics), as well as graduate students outside AEDE with a quantitative background (with permission).

Undergraduate + Graduate Advising


I serve on the dissertation committees for PhD candidates Kathryn Bender and Sahar Yousef. I also advise undergraduate students in the Agribusiness and Applied Economics major and lead the department's PhD job market preparation activities. If you are a current or aspiring undergraduate or graduate student, don't hesitate to contact me about opportunities!


Upcoming + Recent Outreach Events

Challenges + Opportunities for Economic Development in Ohio

Food and Agriculture As Ingredients of Economic Development

May 8, 2019

Pickaway and Ross County Agricultural Outlook

Consumer Trends and Potential Implications for Ohio Agriculture

January 14, 2019


When I'm not working you might find me...


Outside---most likely hiking, canoeing or sailing

Slot canyon
Grand Staircase-Escalante National Monument
Escalante, Utah

Get in Touch!