光华讲坛——社ng28南宫国际app名流与企业家论坛第6984期
主题:From Local Views to Global Reality: Rethinking Asset Pricing Through Revealed Preferences从当地视角到全球现实:通过显示偏好反思资产定价
主讲人:美国纽约城市大学巴鲁克南宫28加拿大软件 董玺副教授
主持人:金融研究院 牛子龙副教授
时间:7月10日14:00-15:30
地点:光华校区35栋金融研究院202ng28南宫国际app议室
主办单位:金融研究院 科研处
主讲人简介:
董玺是纽约城市大学巴鲁克南宫28加拿大软件金融学副教授。在加入巴鲁克南宫28加拿大软件之前,他曾担任位于法国和新加坡的欧洲工商管理南宫28加拿大软件(INSEAD)助理教授,以及美国波士顿道富环球投资管理公司(State Street Global Advisors)全球投资策略师。他的研究聚焦于扭曲金融和经济结果的摩擦因素,不仅致力于理解这些低效率现象,更积极推动学术洞见向现实影响力转化——拓展金融学如何助力重塑更高效世界的边界。其研究成果发表于Journal of Finance、Review of Financial Studies、Management Science、Journal of Accounting Research、Journal of Financial and Quantitative Analysis等顶级学术期刊,以及Journal of Portfolio Management和Journal of Investing等一流期刊。他在时间序列与截面收益可预测性交叉领域的研究工作,产出了过去五年内Journal of Finance上发表的被引次数最多的25篇文章之一。
内容提要:
Unlike prior studies, we develop a framework to test investors’ revealed preferences under two new empirically motivated and more realistic assumptions: investors partially adjust for systematic risk rather than fully implement a particular asset-pricing model, and asset prices are determined in a globally partially integrated equilibrium rather than in fully segmented local markets. We identify investors’ implicit weights on different return components in capital allocation decisions. Our framework nests several existing empirical approaches but shows that, under our assumptions, they can lead to misleading inferences. We discover a clear pecking order. Fund flows respond most strongly to fund alpha, but they also reward performance related to world-market beta far larger than that related to home-market beta. In contrast, performance associated with other Fama-French world or home factor premia is rewarded similarly to alpha. These asymmetric world-versus-home-market preferences are reflected in fund portfolios and asset prices. Funds with higher world-market beta tilt toward stocks with higher world-market exposure. Stocks that appear to have high world-market beta—from the perspective of their respective foreign fund investors—earn significantly negative abnormal returns worldwide, while local beta is not responsible for the violation of the positive CAPM Beta-return relation. Overall, our results illuminate preference-based mechanisms underlying global asset pricing.
与以往不同,悟空体育构建了一个检验投资者显示偏好的分析框架,该框架基于两个具有实证动机且更贴近现实的新假设:投资者仅对系统性风险进行部分调整,而非完全依据某一特定资产定价模型行事;资产价格在全球部分一体化均衡中决定,而非在完全分割的本土市场中形成。本悟空体育识别出投资者在资本配置决策中对不同收益成分所赋予的隐含权重。该框架嵌套了若干现有实证方法,但表明在这些假设下,这些方法可能导致误导性推论。本悟空体育发现了一种明确的优先层级:基金资金流对基金阿尔法(alpha)的反应最为强烈,但同时也ng28南宫国际app对与全球市场贝塔(beta)相关的业绩给予显著奖励,且奖励幅度远大于对本土市场贝塔相关业绩的奖励。相比之下,与其他Fama-French全球或本土因子溢价相关的业绩所获得的奖励则与阿尔法相近。这种不对称的全球市场偏好与本土市场偏好既反映在基金投资组合中,也体现在资产价格上。全球市场贝塔较高的基金ng28南宫国际app更倾向于持有全球市场暴露较高的股票。从各自外国基金投资者的视角来看,那些显得具有较高全球市场贝塔的股票在全球范围内获得了显著的负异常收益,而本土贝塔并非导致CAPM正贝塔-收益关系被违背的原因。总体而言,本悟空体育的研究结果揭示了支撑全球资产定价的基于偏好的内在机制。