I am a development economist and postdoctoral researcher with the Food Systems Economics and Policy Group and the Global Health Engineering Group at ETH Zürich. Prior to this, I held research positions at ETH Zürich (Switzerland), where I completed my PhD in Agricultural and Labor Economics, KU Leuven (Belgium), the University of Göttingen (Germany), the National Center for Agricultural Mechanization (Nigeria), and the National Horticultural Research Institute (Nigeria).
My research addresses policy-relevant questions at the crossroads of applied microeconomics, labor economics, agrifood systems, and development, with a focus on using rigorous analyses to shed light on how to address pressing social sustainability challenges in low-income settings. In addressing these questions, I combine a wide range of quantitative, experimental, and qualitative approaches, using both large-scale secondary datasets (e.g., household surveys, food price data) and primary datasets I have collected.
Outside of work, I enjoy discussing social issues, playing football, and gaming.
Email: aremu.theophilus@gmail.com | oaremu@ethz.ch
Fabry, A., Aremu, O., and Meemken, E. M. (2026). Labor Shortages and Food Loss: Evidence from Tomato Farmers in Nigeria. Environmental Research: Food Systems. DOI
Aremu, O., Illien, P., Olajide, A., and Meemken, E.-M. (2026). Contract Labor, Job Quality, and Turnover Intention: Evidence from Nigeria. Journal of Agricultural Economics. DOI
Meemken, E.-M., Aremu, O., Fabry, A., Heepen, C., Illien, P., Laitha, A., and Kammer, M. (2025). Policy for Decent Work in Agriculture. Agricultural Economics. DOI
Aremu, O., Fabry, A., and Meemken, E.-M. (2024). Farm Size and the Quality and Quantity of Jobs—Insights from Nigeria. Food Policy. DOI
I enjoy fieldwork and have had the incredible opportunity to lead and implement large-scale primary data collection among hard-to-reach actors in low-income settings (Nigeria and Malawi):
Farm, restaurant, and waste trader surveys (with 900 interviewees) for a postdoc project (Malawi, 2026)
Semi-structured interviews with farmers, restaurants, and informal waste collectors (Malawi, 2026)
Semi-structured interviews with labor contractors, contract workers, and farmers (Nigeria, 2025)
Randomized information intervention involving over 500 interviewees (Nigeria, 2024)
Monthly panel phone survey involving over 500 interviewees across 15 panel rounds (Nigeria, 2023 - 2024)
Matched farm-to-worker survey with over 1,600 interviewees (Nigeria, 2023)
Interviews with stakeholders, experts, and farmers in Nigeria's tomato Sector (Nigeria, 2022)
Focus group discussions and interviews with cocoa farming households (Nigeria, 2016)