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

【時(shí)  間】2025年4月17日（星期四），16:00-17:30

【地  點(diǎn)】后主樓 1722會(huì)議室

【主講人】鳳  潔 助理教授（北京理工大學(xué)經(jīng)濟(jì)學(xué)院）

【主持人】徐立成 助理教授（北京師范大學(xué)經(jīng)濟(jì)與工商管理學(xué)院）

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.

報(bào)告人簡(jiǎn)介：

鳳潔，北京理工大學(xué)經(jīng)濟(jì)學(xué)院預(yù)聘助理教授，特別副研究員，碩士生導(dǎo)師。研究方向?yàn)檗r(nóng)業(yè)經(jīng)濟(jì)、生物經(jīng)濟(jì)、創(chuàng)新與技術(shù)管理等，發(fā)表多篇期刊論文，主持博士后基金、省部級(jí)青年、重點(diǎn)科研項(xiàng)目共計(jì)5項(xiàng)。