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Cournot Competition, Informational Feedback, and Real Efficiency

作者: 时间:2025-04-15 点击数:

主讲人 李四光 简介 <p>We revisit the link between product market competition and real efficiency in a novel setting with informational feedback from financial markets. While intensified competition can decrease market power concentration in production, it reduces the value of proprietary information (on, e.g., market prospects) for speculators and discourages information production and price discovery in financial markets, with non-monotonic welfare effects. Market feedback can impact or even reverse the positive effects of competition on consumer welfare and real efficiency, especially when prices become sufficiently informative for product decisions. The findings underscore the importance of considering the interaction between the product market and financial market in antitrust policy, e.g., concerning the regulation of horizontal mergers. We demonstrate the robustness of the main results under dynamic trading, cross-asset trading and learning, etc.</p>
时间 2025-04-22 (Tuesday) 16:30-18:00 地点 厦门大学经济楼C108(线下分会场)、中国科学院数学与系统科学研究院南楼N204、腾讯会议 ID:366 634 189
讲座语言 中文 主办单位 厦门大学邹至庄经济研究院、厦门大学-中国科学院计量建模与经济政策研究基础科学中心、中国科学院数学与系统科学研究院预测科学研究中心、中国科学院大学经济与管理学院
承办单位 类型 系列讲座
联系人信息 许老师,电话:2182991,邮箱:ysxu@xmu.edu.cn 主持人 洪永淼
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主讲人简介 <p>Siguang Li is an Assistant Professor at the Hong Kong University of Science and Technology (Guangzhou). He received his PhD in Economics from Cornell University. His research is in the area of digital economy, financial economics, social media and industrial organization. His recent works focus on Fintech and digital economy. His research work has been published on Journal of Economic Theory, International Economic Review, Finance Stochastics, Quantitative Finance,&nbsp;Economic Research Journal (《经济研究》), Journal of Management Sciences in China (《管理科学学报》).</p> 期数 “邹至庄讲座”青年学者论坛(第80期)
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