教育部信息管理与信息系统虚拟教研室系列活动
讲座时间：2026年9月21日16:00
讲座地点：腾讯会议：907-580-745
讲座主题：Measuring Climate Patents with LLMs: Evidence from Patent Texts
讲座嘉宾简介
石玉坤，英国格拉斯哥大学亚当斯密商学院协理副院长，主管博士研究生项目，金融学教授（Reader）, 博士生导师。担任第三十七届全欧/全英中国经济学会主席，国际金融与银行协会亚洲理事，穆迪分析学术顾问，国家创新与发展战略研究会高级研究员。研究方向为绿色金融、量化金融、金融科技等。同时也是亚洲开发银行研究院、特许金融分析师（CFA）机构、英国国家统计局、欧洲复兴开发银行等机构的培训师及学术顾问，并担任国内多所一流高校的客座教授。发表学术论文四十余篇，培养博士十余名，在国际学术会议上担任主旨演讲人并担任国际期刊编辑。
讲座摘要
We build a patent-level measure of climate innovation by applying a large language model to U.S. patent text. The measure disagrees sharply with the Y02 classification. Of Y02-tagged patents, 68.7% are not confirmed by the LLM, and 52.1% of LLM-identified climate patents carry no Y02 label. Around two major U.S. climate-policy events, equity markets price the LLM measure but not Y02, which supports the LLM measure as a more accurate signal of firm-level climate exposure. We find that firms facing greater regulatory pressure, with stronger prior research capability, higher socially responsible institutional ownership, and stronger product-market competition produce more climate patents. At the patent level, LLM-identified climate patents receive more forward citations and shape the text of later inventions more persistently than non-climate patents. At the firm level, climate-patenting firms show slower growth in carbon emissions and receive higher environmental and ESG scores. They also trade at a Tobin’s Q discount, driven mainly by mitigation patents.
