主讲人Speaker: 宋兆刚 教授 美国约翰霍普金斯大学
时间Date & Time: 2025年12月22日(周一),10:00--11:30
地点Venue:粤海校区汇星楼565会议室
内容简介/ Abstract:
We examine decentralized exchanges (DEXs) like Curve that specialize in stablecoin trading, which co-exist with centralized exchanges (CEXs) like Binance. While traders on CEXs transact against limit orders with specified prices and quantities, traders on DEXs transact against liquidity pools with prices determined by a pre-defined bonding curve. We develop a simple model of stablecoin trading in which a DEX uses a low-convexity bonding curve, liquidity traders choose between the DEX and CEX conditional on trade size, and informed traders profit from private information about the stablecoin’s fundamental value. Using trade-level data of stablecoins, we empirically confirm several implications of the model's main economic mechanism---compared with the CEX, price impact on the DEX is lower, attracting both liquidity trades of larger size and higher amounts of informed trades. We also derive implications on the market design of stablecoin trading.
主讲人介绍/Biography of the speaker:

宋兆刚,康奈尔大学经济学博士,现任约翰霍普金斯大学凯里商学院(Johns Hopkins Carey Business School)教授,2011年至2015年间在美联储理事会任经济学家。主要研究领域为资产定价、市场结构与流动性、非银行金融中介、金融科技、中国货币政策和金融计量经济学。曾在Journal of Finance、Journal of Econometrics、Journal of Monetary Economics、Management Science、Journal of Financial Economics、Review of Financial Studies等期刊发表论文十余篇。他曾获得多项研究奖项,如纳斯达克市场微观结构最佳论文奖、Journal of Econometrics期刊实证计量经济学最佳论文Dennis J. Aigner荣誉奖、Q Group研究奖、全球风险专业人士协会研究奖、蒙特利尔结构性产品和衍生品研究所研究奖。
宋教授还积极参与金融市场的政策问题和金融业的投资实践。他曾担任美国商品期货交易委员会(CFTC)的学术专家,为Dimensional Fund Advisors(DFA)提供固定收益投资咨询,曾在费城联邦储备银行担任访问学者,并担任香港货币与金融研究所专题研究计划的学者。