【金科学术讲座】When Optimism Breeds Risk: Evidence from LLM-Analyzed Fund Manager Forecasts
2025/10/10
讲师 刘嘉 教授 时间 2025年10月14日(周二),上午10:00--11:30
地址 粤海校区汇星楼565会议室


主讲人Speaker: 刘嘉   教授   英国朴茨茅斯大学

时间Date & Time: 20251014(周),上午10:00--11:30

地点Venue:粤海校区汇星楼565会议室

内容简介/ Abstract:

We develop a novel large language model-based multi-entity sentiment analysis framework (LLM-MESA) that enables fine-grained, entity-specific measurement of sentiment in financial texts. Applying this method to mutual fund manager reports, we extract expectations in their communications regarding the stock market, bond market and macroeconomy, providing the first evidence on how institutional stock market sentiment predicts crash risk. We find that managers’ optimistic equity outlooks significantly increase crash risk, indicating that institutional forecasts embed non-rational sentiment. This effect is particularly pronounced among lower-skill funds, when macroeconomic expectations are pessimistic, and when bond market views are optimistic. Mediation analysis shows that optimism amplifies institutional herding and attracts sentiment-driven retail investors into equity trading, thereby exacerbating crash risk. Our study demonstrates the value of LLM-MESA for financial text analysis, advances understanding of the mechanism linking institutional sentiment to crash risk, and contributes to the debate on whether institutional investors stabilize or destabilize markets.

主讲人介绍/Biography of the speaker:

刘嘉,英国管理学院院士; 英国伯明翰大学经济学博士。朴茨茅斯大学会计与金融学教授以及创新和可持续金融中心主任。曾经就职于利兹大学和索菲尔德大学。她的研究包括公司金融、行为金融、金融市场、风险管理、金融科技、大数据、会计报告披露和可持续性。她在主要金融、会计、管理学国际期刊发表80多篇学术论文, 其中包括16篇ABS-4和FT50期刊; 并出版关于公司治理、可持续性、和决策方面的专著。曾获欧洲管理杂志 (EU)、英国管理学院(英国)、西南金融协会(美国)、以及Eurasian商业与经济协会(EBES)的“最佳论文奖”。她的研究被多个媒体采访和发表,包括著名的The Conversation以及纳斯达克证券交易所。

她目前是英国会计和金融协会主席(Chair)、英国管理学院执行官(Executive),英国政府的Co-Op Bank项目顾问。同时,她还担任多本期刊的主编, 副主编, 和编委, 其中包括:International Journal of Finance and Economics主编 (ABS 3)、British Journal of Management (ABS 4;ABDC-A*)、International Review of Financial Analysis (ABS 3)、British Accounting Review (ABS 3; ABDC-A*)副主编; Corporate Governance: An International Review (ABS 3)和Journal of Business Finance and Accounting(ABS 3; ABDC-A*)编委,以及17本SSCI-indexed杂志的客座编辑.她组织了 50多个国际会议,积极推动科学研究的发展与创新。她目前还担任European Financial Management(Q1, ABS 3)客座编辑