• 详情 Animal spirits: Superstitious behavior by mutual fund managers
    Using a unique dataset from China spanning 2005 to 2023, we investigate how superstitious beliefs influence mutual fund managers’ risk-taking behavior and how this influence evolves over their careers. We find a significant 6.82% reduction in risk-taking during managers’ zodiac years, traditionally considered unlucky in Chinese culture. This effect is particularly pronounced among less experienced managers, those without financial education backgrounds, and those with lower management skills. The impact also intensifies during periods of high market volatility. Our findings challenge the traditional dichotomy between retail and professional investors, showing that even professional fund managers can be influenced by irrational beliefs early in their careers. However, the diminishing effect of superstition with experience and expertise suggests a gradual transition towards more rational decision-making. Our results provide insights into the process by which financial professionals evolve from exhibiting behavior akin to retail investors to becoming the rational actors often assumed in financial theory.
  • 详情 Estimating the Term Premium: Sample Periods Matter
    Estimates of canonical affine term structure model parameters are highly sensitive to sample periods. For example, depending on whether the sample starts in 1961 or 1981, the 5-5 forward risk-neutral rate for September 1981 differs by 4.6 percentage points or 98% of the latter. The estimated response of this rate to high-frequency monetary policy shocks differs by a factor of three, even within a fixed sample for the monetary policy transmission regression. We suggest that a shifting endpoint model can mitigate these issues. Additionally, we provide new estimates of the effects of monetary policy shocks on long-term risk-neutral rates.
  • 详情 绿色标准与企业创新——基于大语言模型的指标刻度与绿色金融机制探索
    2019年,国家发布《绿色产业指导目录》,首次明确绿色产业范围和技术标准,旨在为包括绿色金融体系在内经济社会绿色转型中一系列制度安排的重点支持方向提供技术上的参考目录,提高资源配置效率。本文以《目录》提供的技术文本为基础、运用前沿的大语言模型,构建了全新的基于专业技术角度的企业绿色技术指标,避免了传统企业环境效益评价指标(如ESG指标)存在的覆盖不足和漂绿高估问题。以该指标为基础,本文运用双重差分法考察《目录》对企业创新能力、投资行为及经营绩效的影响。实证结果表明,《目录》的颁布鼓励企业加大了研发投入、增加了绿色支出,提升了绿色企业的创新能力,尤其促进了企业的高质量创新产出。进一步地融资机制探索表明,明确绿色标准显著降低了相关企业的融资成本,尤其对企业信贷融资渠道的影响更为显著。最后,本文通过经济意义分析发现,《目录》提高了企业的经营绩效和节能减排。本文的研究结论为进一步健全绿色金融机制、实现绿色可持续发展提供了有益参考。
  • 详情 Does social media make banks more fragile? Evidence from Twitter
    Using a sample of U.S. commercial banks from 2009 to 2022, we find that the flow of non-core deposits, rather than that of core deposits, becomes more sensitive to bank performance as banks receive increased attention on Twitter. This effect is particularly pronounced during periods of poor bank performance, when Twitter discussions are more influential, and for banks with more liquidity mismatch. Our results suggest that social media, rather than merely disseminating information about bank performance, makes depositors aware of their peers’ attention to banks, thereby intensifying the sensitivity of deposit outflows to weak fundamentals.
  • 详情 Sustainable Dynamic Investing with Predictable ESG Information Flows
    This paper proposes the concepts of ESG information flows and a predictable framework of ESG flows based on AR process, and studies how ESG information flows are incorporated into and affect a dynamic portfolio with transaction costs. Two methods, called the ESG factor model and the ESG preference model, are considered to embed ESG information flows into a dynamic mean-variance model. The dynamic optimal portfolio can be expressed as a traditional optimal portfolio without ESG information and a dynamic ESG preference portfolio, and the impact of ESG information on optimal trading is explicitly analyzed. The rich numerical results show that ESG information can improve the out-of-sample performance, and ESG preference portfolio has the best out-of-sample performance including the net returns, Sharpe ratio and cumulative return of portfolios, and contribute to reducing risk and transaction costs. Our dynamic trading strategy provides valuable insights for sustainable investment both in theory and practice.
  • 详情 企业 ESG 表现对绿色创新绩效的影响研究 ——来自中国 A 股上市公司的证据
    摘 要:本文基于利益相关者理论、信号传递理论和委托代理理论分析了企业 ESG 表现对绿色创新绩效可能的影响及其机制,并以 2009—2021 年中国 A 股上市公司为样本,实证分析了企业 ESG 表现的绿色创新效应。从机制分析发现,ESG 表现主要通过缓解融资约束、提高人力资本水平促进企业绿色创新绩效。从拓展性研究发现,ESG 表现的三个子维度都有助于提升绿色创新绩效,且公司治理表现的提升效应最强;ESG 表现不仅提高企业策略性绿色创新绩效、独立绿色创新绩效,还可提升实质性绿色创新绩效、合作绿色创新绩效。
  • 详情 Microstructure-based private information and institutional return predictability
    We introduce a novel perspective on private information, specifically microstructure-based private information, to unravel how institutional investors predict stock returns. Using tick-by-tick transaction data from the Chinese stock market, we find that in retail-dominated markets, institutional investors positively predict stock returns, consistent with findings from institution-dominated markets. However, in contrast to the traditional view that institutional investors primarily rely on value-based private information, our results indicate that microstructure-based private information contributes almost as much to their predictive power as value-based private information does, with both components jointly accounting for approximately two-thirds of the total predictive power of institutional order flow. This finding reveals that retail investors’ trading activities significantly impact institutional investors, naturally forcing them to balance firm value information with microstructure information, thus profoundly influencing the price discovery process in the stock market.
  • 详情 Partnership as Assurance: Regulatory Risk and State–Business Equity Ties in China
    Recent studies highlight the resurgence of state capitalism, with the state increasingly acting as equity investors in private firms. Why do state--business equity ties, including partial and indirect state ownership in private firms, proliferate in weakly institutionalized contexts like China? While conventional wisdom emphasizes state-driven explanations based on static evidence, I argue that regulatory risk reshapes business preferences, prompting firms to seek state investors and expanding state--business equity ties. These ties facilitate information exchange and signal political endorsement under regulatory scrutiny. Focusing on China's crackdown on the Internet and IT sectors, difference-in-differences analyses of all investments from 2016 to 2022 reveal a rise in state--business equity ties post-crackdown. In-depth interviews with investors along with quantitative analysis, demonstrate that shifts in business preferences drive this change. This study shows the resurgence of state capitalism is driven not only by the state but also by businesses in response to regulatory risks.
  • 详情 金融摩擦、气候适应性投资缺口 与中国宏观经济政策协调
    气候投融资缺口是制约人类气候适应进程的全球性难题,如何通过宏观经济政策有效支持气候适应性投资,是我国现阶段应对气候风险冲击提升经济韧性的重要议题。本文构建嵌入气候适应型财政货币政策的气候灾难风险模型,考察气候适应性投资缺口的产生机理以及通过宏观经济政策缩小缺口的效果。研究发现:第一,气候灾难风险冲击增大、金融摩擦上升会扩大气候适应性投资缺口。第二,气候适应再贷款政策通过降低金融摩擦产生的信贷风险溢价,气候适应补贴政策通过定向补贴气候适应性投资的边际收益,分别从金融供给侧和企业需求端缩小气候适应性投资缺口。第三,气候适应型财政政策和货币政策通过支持气候适应性投资,能够有效缓解气候灾难风险对经济金融系统的负面冲击,两类政策对经济金融系统的支持效果存在差异,并且政策协调搭配具有更强的经济金融稳定效果。第四,为完全弥补气候适应性投资缺口,气候适应再贷款和气候适应补贴的最优政策支持力度需要根据气候灾难风险冲击大小动态调整。两类政策均能够提高社会福利,并且政策协调搭配相较于单一政策具有更高的社会福利增进效果。
  • 详情 政策赋能、数字化转型与企业ESG
    本文基于2010—2022年中国上市公司面板数据,以“国家大数据综合试验区”的设立作为准自然实验,从数字经济的视角,探讨大数据试验区的设立与企业ESG绩效的关系。研究发现,大数据试验区的设立显著提升了企业的ESG绩效,激发了企业的数字化转型动力,尤其是对企业的环境治理(E)和社会治理(S)维度的提升效果更为显著,体现了数字化政策在中国数字经济发展过程中对于企业规范约束的作用。第二,机制研究表明大数据试验区的设立使明显促进了当地企业的数字化程度,此外,区位导向性政策可以有效规范约束企业数字化转型,从而促进企业ESG绩效的提升。第三,大数据试验区能够更好地促进东部地区、资本和技术密集型企业以及非高新技术企业,并未实现均衡发展,仍存在区域和企业间差异。本文结论不仅有助于深化理解以大数据试验区为代表的数字产业政策对企业发展的作用效果,也为地方政府依托大数据试验区,抢抓数字经济发展的新机遇,深度挖掘数据要素价值,提供了有力的政策支持。