Affiliation status: Currently affiliated

Teaching: Agriculture, Environment and Development, Agriculture and Nature Conservation Publications: Wätzold, M. Y. L., Krumbiegel K., Tillie P., Wollni M. (2026) Agroforestry as a climate change adaptation strategy: Evidence from Ghana’s cocoa sector. Agricultural Systems, 231, 104519. https://doi.org/10.1016/j.agsy.2025.104519 Wätzold, M. Y. L., Abdulai, I., Cooke, A., Krumbiegel, K., Ocampo-Ariza, C., Wenzel, A., Wollni, M. (2025). Do voluntary sustainability standards improve socioeconomic and ecological outcomes? Evidence from Ghana's cocoa sector. Ecological Economics, 229, 108474. https://doi.org/10.1016/j.ecolecon.2024.108474 Wollni, M., Bohn, S., Ocampo‐Ariza, C., Paz, B., Santalucia, S., Squarcina, M., Umarishavu, F., Wätzold, M. Y. L. (2025). Sustainability standards in agri‐food value chains: Impacts and trade‐offs for smallholder farmers. Agricultural Economics, e70005. https://doi.org/10.1111/agec.70005 Wätzold, M. Y. L., Cooke, A., Ocampo-Ariza, C., Umarishavu, F., Wollni, M. Voluntary sustainability standards and socioeconomic and ecological outcomes: Panel evidence from Rwanda’ coffee sector. SustainableFood Discussion Paper 28, University of Goettingen. https://doi.org/10.47952/gro-publ-345, submitted to World Development Umarishavu, F., Bradaczek,