【题  目】Transgene-Environment Interactions in Farm Management: Evidence from the U.S. Soybean Seeding Density

【时  间】2025年4月17日（星期四），16:00-17:30

【地  点】后主楼 1722会议室

【主讲人】凤  洁 助理教授（北京理工大学经济学院）

【主持人】徐立成 助理教授（澳门新葡萄新京威尼斯官方网站）

摘要：

Biotechnology complicates existing genotype-environment-management interactions by enhancing crop resistance to environmental stresses. We explored the impact of genetically engineered (GE) traits, weather, information factors, and their interaction on seeding density in the US soybean industry. We derived a seed demand model with a concave yield function and generated hypotheses to test the heterogeneous effects of transgene and environmental factors on seeding density. In addition to the negative price effect, we found that GE herbicide-tolerant traits, unfavorable weather changes during the farming season, and the dominant biotech company’s market share were significantly and negatively correlated with soybean seeding density. Furthermore, transgene-environment interactions significantly decreased the seeding rate reduction effect of unfavorable weather. We also provide empirical evidence that the GE technology decreased the variation among heterogeneous farmers on different quantiles of seeding rates.

报告人简介：

凤洁，北京理工大学经济学院预聘助理教授，特别副研究员，硕士生导师。研究方向为农业经济、生物经济、创新与技术管理等，发表多篇期刊论文，主持博士后基金、省部级青年、重点科研项目共计5项。