About

Dr. Roberto Gallardo is Vice President for Engagement and Associate Professor of Agricultural Economics at Purdue University. His research and professional focus include the evolving urban-rural divide, renewable energy and farmland market dynamics, and the future of farming. He is actively involved in the Farm Policy Study Group at Purdue, contributing to discussions on macro indicators, farmland markets, and rural community resilience. His work emphasizes understanding the economic and social factors influencing agriculture, land use, and rural development.

Research topics

• Market economy
• Agricultural economics
• Economics
• Microeconomics
• Economic growth
• Business
• Labour economics

Selected publications

• The economics of circular bioeconomy supply chains: Theory and case studies

  European Review of Agricultural Economics · 2025-04-24

  article1st authorCorresponding

  Abstract Circular bioeconomy employs advanced life science technologies to utilize renewable natural resources to produce goods and is a key part of the sustainable development strategy. Most circular-bioeconomy supply chains, however, are still in their infancy. We propose a conceptual model that characterizes the farm decision to adopt the circular use of agricultural residues such as animal waste and corn stover. The model highlights the complementarity between farm outputs and the residue and pins down key determinants of adoption. We illustrate how the economic forces work by examining two budding circular-bioeconomy supply chains—biochar and black soldier fly.

  PublisherDOI

• Risk Management Externalities in Food Supply Chains

  SSRN Electronic Journal · 2025-01-01

  preprintOpen accessSenior author
  PublisherDOI

• Firm-Level Pass-Through of Supply Chain Disruptions: Insights from the U.S. Beef Market

  The Federal Reserve Bank of Kansas City Research Working Papers · 2025-11-25

  articleOpen accessSenior author
  PublisherDOI

• Green Finance: Catalyst For Building a Resilient Kerala- Detailing Potential Investments In Tourism, Agriculture And The Blue Economy

  INTERNATIONAL JOURNAL OF CREATIVE RESEARCH THOUGHTS · 2025-01-01

  articleOpen accessSenior author

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  PublisherOA PDFDOI

• Firm-level Pass-through of Supply Chain Disruptions: Insights from the US Beef Market 

  SSRN Electronic Journal · 2025-01-01

  preprintOpen accessSenior author
  PublisherDOI

• Firm-level Pass-through of Supply Chain Disruptions: Insights from the US Beef Market 

  SSRN Electronic Journal · 2025-01-01

  preprintOpen access
  PublisherDOI

• High-Dimensional Spatial-Plus-Vertical Price Relationships and Price Transmission: A Machine Learning Approach

  ArXiv.org · 2025-06-16

  preprintOpen access

  Price transmission has been studied extensively in agricultural economics through the lens of spatial and vertical price relationships. Classical time series econometric techniques suffer from the "curse of dimensionality" and are applied almost exclusively to small sets of price series, either prices of one commodity in a few regions or prices of a few commodities in one region. However, an agrifood supply chain usually contains several commodities (e.g., cattle and beef) and spans numerous regions. Failing to jointly examine multi-region, multi-commodity price relationships limits researchers' ability to derive insights from increasingly high-dimensional price datasets of agrifood supply chains. We apply a machine-learning method - specifically, regularized regression - to augment the classical vector error correction model (VECM) and study large spatial-plus-vertical price systems. Leveraging weekly provincial-level data on the piglet-hog-pork supply chain in China, we uncover economically interesting changes in price relationships in the system before and after the outbreak of a major hog disease. To quantify price transmission in the large system, we rely on the spatial-plus-vertical price relationships identified by the regularized VECM to visualize comprehensive spatial and vertical price transmission of hypothetical shocks through joint impulse response functions. Price transmission shows considerable heterogeneity across regions and commodities as the VECM outcomes imply and display different dynamics over time.

  PublisherOA PDFDOI

• Retail Assortment under Demand Shocks: Evidence from the US Yogurt Market

  SSRN Electronic Journal · 2024-01-01

  articleOpen access1st authorCorresponding
  PublisherDOI

• Retail assortment under demand shocks: Evidence from the US yogurt market

  Journal of the Agricultural and Applied Economics Association · 2024-08-05

  articleOpen access1st author

  Abstract Despite extensive research on retailers' price responses to demand shocks, much less is known about their non‐price responses. Using heterogeneity in timing, location, and magnitude of income and wealth shocks associated with the 2008 Great Recession, we explore how US retail stores adjusted product offerings under local demand shocks. We find that stores offer fewer products and varieties besides lowering prices. Using a structural demand model, we quantify the net welfare impact of the price and assortment adjustments. On average, the consumer welfare losses from variety reduction more than offset the welfare gains from price reductions.

  PublisherOA PDFDOI

• Relational Contracts in Well-Functioning Markets: Evidence from China's Vegetable Wholesale

  SSRN Electronic Journal · 2023-01-01 · 1 citations

  articleOpen accessSenior author
  PublisherDOI

Frequent coauthors

• Jayson L. Lusk

  12 shared

• H. Holly Wang

  Purdue University West Lafayette

  6 shared

• Richard J. Sexton

  United States Naval Observatory

  6 shared

• Michael Delgado

  Purdue University System

  5 shared

• Ralph Siebert

  5 shared

• H. Holly Wang

  State Street (United States)

  5 shared

• Megan N. Hughes

  4 shared

• Carson Reeling

  Purdue University West Lafayette

  4 shared

Awards & honors

• James C. Snyder Memorial Lecture
• AGECON Distinguished Ag Alumni
• Purdue Ag Alumni Association