中国证券投资基金的需求与其风格“标签”关系的实证分析

对于以组合管理为基本方法的证券投资基金,由于其投资风格选择的不同会导致投资者对其投资偏好的差异,加之证券市场的非有效性和投资者的非完全理性,投资者对基金的投资决策更多基于心理动机和行为因素的判断。本文运用行为组合理论,对我国证券市场封闭式基金的折价状况进行了考察,分析了证券投资基金投资风格选择对基金需求的影响及我国证券市场投资者的需求特点和偏好状况。     

Overreaction to stock market news and misevaluation of stock prices by unsophisticated investors: Evidence from the option market

This paper examines investors' option activity on value and growth stocks before earnings announcements. The main finding is that unsophisticated investors enter option positions that load up on growth stocks relative to value stocks in the days leading up to earnings announcements. This occurs despite the fact that at earnings announcements value stocks outperform growth stocks by a wide margin. The paper's results provide evidence that unsophisticated option market investors (1) overreact to past news on underlying stocks and (2) mistakenly believe that mispriced stocks will move even further away from fundamentals at impending scheduled news releases.     

个人投资者的行为金融学分析

行为金融是当前金融经济学的研究热点。它注重研究投资者的实际决策行为,解释金融市场上的各种现象。个人投资者行为分析是行为金融研究的重要组成部分。行为金融较为成功地解释了个人投资者的判断与决策、投资组合、策略与交易以及退休储蓄等方面的行为。     

Anomalies in finance: What are they and what are they good for?

In the natural sciences, anomalies contribute significantly to the development of new and ultimately more successful theories. The role of anomalies in financial economics, however, has been quite different. Although at the beginning, the word was used to show deviations from the Efficient Markets Hypothesis (EMH)/Capital Asset Pricing Model (CAPM) paradigm, lately, it has been applied to a new literature that is also more accurately called Behavioral Finance (BF). This paper argues that this misuse and misapplication of the word anomaly is not a simple coincidence. It is rather a sophisticated and accordant effort to imply that although there are some unresolved deviations from the norm, the reigning paradigm is irreplaceable, and its validity needs no empirical proof. In fact, an alternative paradigm such as BF is not only insignificant but also unnecessary and even impossible.     

跨境金融:驱动因素、结构特征与未来路径

跨境金融的驱动因素和结构特征是理论界和实务界关注的重要话题。在当前复杂的国际经济金融形势下,厘清全球跨境金融的规律特征,对我国更好地利用“两个市场、两种资源”,防范外部金融风险具有重要意义。2008年国际金融危机以来,在经济周期、全球流动性、金融结构和监管政策等驱动因素的影响下,全球跨境金融活动呈现规模下降、结构调整、流向分化、主体切换和风险变化等特征。同时,银行跨境业务呈现综合化趋势,数字化转型提速,经营稳健性明显增强。我国跨境金融规模稳步增长,对国际收支的影响持续增强,在全球资金循环中的份额不断提高。未来,随着我国经济转型和对外开放步伐的加快,跨境金融的规模和结构还将发生深刻变化,风险日趋复杂。应引导形成与我国经济金融发展特征相匹配的跨境资金结构,平衡扩大开放与风险防控的关系,充分发挥银行业在跨境金融领域的“比较优势”。     

Costs and benefits of financial regulation: Short-selling bans and transaction taxes

We quantify the effects of financial regulation in an equilibrium model with delegated portfolio management. Fund managers trade stocks and bonds in an order-driven market, subject to transaction taxes and constraints on short-selling and leverage. Results are obtained on the equilibrium properties of portfolio choice, trading activity, market quality and price dynamics under the different regulations. We find that these measures are neither as beneficial as some politicians believe nor as damaging as many practitioners fear.     

Is trading behavior stable across contexts? Evidence from style and multi-style investors

In this paper we study priming of identity within the context of inherent vs. contextual financial decision making. We use a sample of individual trading accounts in equity-style funds taken from one fund family to test the hypothesis that trading styles are inherent vs. contextual. Our sample contains investors who invest either in a growth fund, a value fund, or both. We document behavioral differences between growth fund investors and value fund investors. We find that their trades depend on past returns in different ways: growth fund investors tend towards momentum trading and value fund investors tend towards contrarian trading. These differences may be due to inherent clientele characteristics, including beliefs about market prices, specific personality traits and cognitive strategies that cause them to self-select into one or the other style. We use a sample of investors that trade in both types of funds to test this proposition. Consistent with the contextual hypothesis, we find that investors who hold both types of funds trade growth fund shares differently than value fund shares.     

Why do insiders trade? Evidence based on unique data on Swedish insiders

In this paper, we examine if corporate insiders have other motives for trading besides exploitation of private information. Our results show that insiders’ portfolio re-balancing objectives, tax considerations and behavioral biases play the most important role in their trading decisions. We also find that insiders who have allocated a great (small) proportion of their wealth to insider stock sell more (less) before bad news earnings disclosures. Finally, insider selling is informative for future returns among those insiders who have the greatest proportion of wealth allocated to insider stocks.     

The global financial crisis—Market misconduct and regulation from a behavioral view

This paper explores the problem of the global financial crisis of 2008–9, using a behavioral perspective to examine in some detail the issue of governance failures. These failures are evident in the inadequate oversight/regulation provided by US financial market regulators, as well as the inability of financial market participants to adequately judge and assign risk measures to key financial instruments. In total, five elements of behavioral finance are shown to characterize the crisis. The paper shows how specific adjustments in government policy (dealing with market structural imperfections) and company governance (dealing mainly with risk management) can respond to the key elements of the crisis. It also points out that future financial crises cannot be avoided, so that mitigation is the only remedy to deal with such phenomena.     

互联网金融资产的多目标投资组合研究

互联网金融的快速发展和不断创新,正在悄然改变着公众的投资理财行为。本文在分析互联网金融创新下公众流动性偏好、投资行为变化与资产选择的基础上,构建基于CRRA(常数相对风险厌恶)期末财富期望效用最大化和VaR最小化的多目标投资组合模型。同时引入多目标优化的NSGA-Ⅱ遗传算法,并选择实际数据对模型进行求解,得出最优的互联网金融资产组合。研究表明:(1)互联网金融给传统金融业带来冲击的同时,也改变了人们的流动性偏好、投资行为和资产组合选择。(2)互联网金融在一定程度上调和了金融资产“流动性、收益性和安全性”之间的矛盾,并兼顾了“三性”的相对统一。(3)模型求解结果显示,投资者对互联网金融资产的投资组合为低风险类资产60%左右、高风险类资产40%左右。     

Participation in risky asset markets and propensity for financial planning: a missing link?

This study examines whether the association between financial literacy and participation in risky asset markets is robust to variation on a more innate level: the propensity for financial planning. I find that individuals’ propensity for financial planning is strongly positively related to stock market participation as well as membership in a voluntary workplace retirement savings scheme. This result holds when controlling for financial literacy and a range of demographic and control variables in a multivariate regression setting. Importantly, the positive association between financial literacy and risky asset market participation also persists, suggesting that these two variables operate through separate channels.