Yayun (Birdy) Chen
Yayun (Birdy) Chen

Associate Research Scientist

About Me

I am an applied economist working on energy, the environment, and agriculture, and an Associate Research Scientist in the Department of Agricultural Economics at Texas A&M University, where I received my Ph.D. in Agricultural Economics in 2024.

My research asks how climate shocks and technological change move through energy and agricultural markets. I show, for example, that forest loss shifts crop yields far away through ecoclimate teleconnections, raising U.S. crop output 1–3% and lowering prices (Nature Communications), and that refineries’ responses to hurricane forecasts carry their own output and profit costs (Environmental Research Letters). A second line of work values the environmental and health benefits of emerging low-carbon technologies. My methods combine applied econometrics, optimization-based market modeling, and life cycle and techno-economic assessment.

Research Interests

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Research Highlights
Figure 1: maps of U.S. dryland corn yield change under forest loss in each of 14 NEON regions
Oct 2026
Accepted in Nature Communications (first author)

Forest loss shifts crop yields far away through ecoclimate teleconnections, raising U.S. crop output 1–3% and lowering prices.

Artwork: PFAS-coated jacket and food box pollute a river and tap water; the same products with a lignin coating from a paper mill leave the river clean and break down in soil
Designed by BC; rendered with ChatGPT
Oct 2026

PFAS, the "forever chemicals" in water-repellent jackets and food packaging, never break down and are linked to cancer. Our team built a fluorine-free coating from paper-mill lignin that repels water just as well and breaks down in soil. As the team's economist, I valued the health damages PFAS shifts onto society: switching avoids up to $1.1 billion a year worldwide.

Archive
  • Oct 2026Accepted in One Earth: protein production from CO2 by electro-biomanufacturing. I co-led the techno-economic and life cycle assessment.
  • 2026Published in Matter: renewable carbon fiber. I co-led the techno-economic and life cycle assessment.
  • 2025Published in ACS Sustainable Chemistry & Engineering (first author): turning captured CO2 into biodegradable bioplastics. I estimated the social benefits of replacing fossil plastics by valuing the environmental damages avoided.
  • 2025Published in Environmental Research Letters (first author): refinery output and profit losses from hurricane forecasts.