我国证券投资基金处置效应检验

本文首先介绍了前景理论,将研究期间分为业绩上涨和业绩下降两个阶段,对基金份额赎回的外部效应进行了推导,并将前景理论与外部效应结合分析了基金赎回的处置效应。提出3条假设,利用2007—2009年季度数据,建立基金赎回率与收益率、基金分红等因素之间的面板数据模型,对基金赎回的处置效应进行了实证检验。研究发现:无论是在基金业绩上涨时期还是下降阶段,基金的收益率与基金的赎回率呈显著负相关,特别是在基金业绩下降阶段,投资者选择了赎回基金份额,并没有体现出处置效应。最后,从稳定基金规模的角度出发,本文认为牛市中的净申购与熊市中的净赎回均不利于基金份额的稳定,会给基金的运作带来困难。     

中国股票市场个体投资者"处置效应"的实证研究

利用中国个体投资者交易帐户的交易数据,本文对中国股票市场个体投资者"处置效应"进行了实证分析,并考察了中国股票市场是否存在"十二月效应"对"处置效应"的影响.依据情绪影响投资者决策的心理学结论,本文进一步分析了在不同的市场态势下,个体投资者"处置效应"的特征.本文研究表明,中国个体投资者存在显著的"处置效应",并在不同市场态势下表现出不同的特征,十二月份存在"反处置效应"现象.     

Holding on to the Losers: Finnish Evidence

Recent literature reports evidence on investor behavior that is inconsistent with traditional finance theory. One currently being debated is behavioral irrationality, the tendency of investors to hold losing investments too long and sell winning investments too soon, a phenomenon known as the disposition effect. We analyze the trading records of all individual investors in the Finnish stock market and document that capital losses reduce the selling propensity of investors. There is, however, no opposite effect identifiable with respect to capital gains. We also find, somewhat surprisingly, that both positive and negative historical returns significantly reinforce the negative association between the selling propensity of investors and capital losses. While these findings offer no direct support for the disposition effect, they do suggest that investors are loss averse.     

A reliable performance measure to differentiate China’s actively managed open-end equity mutual funds

We compare different fund performance measures to examine which performance measures can generate risk-adjusted returns between high ranked and low ranked China’s actively managed open-end equity mutual funds. Our results show that only the six-factor (five factors (market, size, b/m, profitability & Investment facotrs) plus a momentum factor) alpha as the performance measure meets the criteria. Separated by the six-factor alpha, better performing funds have a larger asset under management, a better past 6-month cumulative return, a better stock picking ability, and a higher percentage of hybrid funds. Through our sample period from July 2004 to December 2015, the highest ranked quintile funds generate a monthly risk-adjusted return of 0.24% more than the lowest ranked quintile funds and the six-factor alpha reliably selects a better fund portfolio in both bear and bull markets on the basis of both fund return and holding data. Furthermore, our results from fund trading data show that funds with the highest six-factor alpha rank demonstrate a better trading skill in bear markets, suggesting that those better performing funds exhibit their market timing and stock picking abilities when investors need them most.     

Irrational Mutual Fund Managers: Explaining Differences in Their Behavior

Documenting the disposition effect for a large sample of mutual fund managers in the United States, we find that stock-level characteristics explain the cross-sectional variation of the effect. The disposition effect, which is the tendency to sell winner stocks too early and hold on to loser stocks for too long, is more pronounced for fund managers who invest in stocks that are more difficult to value. Using different measures of stock and market uncertainty, we show that mutual fund managers display a stronger disposition-driven behavior when stocks are more difficult to value. We also find that the level of the disposition effect is monotonically increasing with the level of systematic risk (i.e., beta). In addition, we document that the trading behavior of mutual fund managers is partly driven by attention-grabbing stocks (dividend-paying stocks). Overall, our results suggest that stock-level uncertainty and trading of attention-grabbing stocks amplify the disposition effect and that differences in the effect can be explained by mutual fund managers' investment styles. Given that mutual funds hold a large fraction of the U.S. equity market, our findings add to the ongoing discussion whether professional investors can create stock mispricings and shed new light on market efficiency.     

The Disposition Effect and Individual Investor Decisions: The Roles of Regret and Counterfactual Alternatives

Recent studies have documented a strong tendency for individual investors to delay realizing capital losses, while realizing gains prematurely (Odean [1996], Shefrin and Statman [1985], Weber and Camerer [1996]). This tendency has been termed the "disposition effect." The disposition effect is inconsistent with normative approaches to stock sales, such as those based on tax losses (see, for example, Constantinides [1983]). We surveyed individual investors, and found that more respondents reported regret about holding on to a losing stock too long than about selling a winning stock too soon. This finding suggests that individual investors are consistently engaging in behavior that they have been warned can cost them money and that they regret later. Two additional experiments confirm the disposition effect and the role of regret, and offer evidence about the role of an agent (broker) in the assignment of blame and regret. We show that investor satisfaction and regret are not simply functions of outcome, but are influenced by counterfactual alternatives and the type of action taken (holding versus selling). We suggest that the disposition effect may be highly related to reduction of anticipated regret.     

社保基金投资组合的 定价效率和投资风险研究 基于股价同步性的实证检验

笔者利用2007年到2013年各个季度我国沪深两市A股交易数据,以股票价格收益率与沪深300指数收益率的同步性衡量股票的定价效率,通过实证模型分析社保基金投资对股票定价效率的影响。研究表明,当市场处于金融危机前后的牛市和熊市时,社保基金投资对股票定价效率无显著影响,当市场处于较平稳的阶段时,社保基金能显著提高股票的定价效率并降低了投资风险。这说明社保基金参与资本市场投资能提高我国资本市场的有效性。     

S&P 500 volatility,volatility regimes,and economic uncertainty

We assess the relationship between regime-dependent volatility in S&P 500, economic policy uncertainty, the S&P 500 bull and bear sentiment spread (bb_sp), as well as the Chicago Board Options Exchange's VIX over the period 2000–2018. Our findings from two-covariate GARCH–MIDAS (GM) methodology, regime switching Markov Chain, and quantile regressions suggest that the association of realized volatility and sentiment varies across high- and low-volatility regimes and depends on investors’ sensitivity toward incidents of market uncertainties under these regimes. The findings suggest that these indicators may not be useful in volatility forecasting, especially under high-volatility regimes.     

个人投资者交易行为研究——来自台湾股市的证据

本文基于台湾股市数据,主要研究个人投资者的交易行为。参照Kaniel et al.(2008)构建了个人投资者交易不平衡性指标─净交易,以反映投资者股票交易的强度。采用这种交易不平衡性指标来构建投资组合研究个人投资者的交易行为。首先研究个人投资者交易和股票的收益之间的动态关系从而分析投资者的交易策略,然后研究个人投资者净交易的收益预测能力从而分析个人投资者交易的信息含量。本文研究发现:台湾股票市场的个人投资者采用负反馈的交易策略,并且个人投资者在交易中表现出很强的处置效应;个人投资者在交易中的信息含量不足;个人投资者交易中的盈利主要来自两个方面:过度反应和价格冲击。文章最后给出政策建议。     

我国证券投资基金总体绩效的实证分析——基于总业绩评价理论

本文基于2007—2010年间数据,对我国开放式证券投资基金中的股票型基金、混合型基金和债券型基金的总体绩效进行了比较实证分析。研究发现:各股票基金的业绩表现极不均衡,基金经理的选股能力参差不齐,但选股能力或者择时能力有了明显的提高;各混合型基金的绩效分布都较为接近正态分布;我国债券型基金的业绩表现基本稳定,并没有随着股票市场的大起大落而表现出明显的好与差,其风险收益均大于与市场同风险的投资组合的风险收益,但是这种优势并不太明显。     

Two centuries of bull and bear market cycles

Very few economic phenomena attract more attention than bull and bear market cycles do, and there is also agreement that bull markets are associated with persistently rising share prices, strong investor interest, and enhanced financial well-being. This paper identifies bull and bear market turning points using a formal turning-point identification procedure and finds that the bull and bear market phases are associated with distinct and persistent mean return shifts. The analysis highlights return evidence that distinguishes bull markets as distinct investment return regimes. The paper also emphasizes the properties of bull markets that can be important to investors, including the persistence of return differences between bull and bear markets as well as interrelationships amongst bull markets and investor interest.     

The disposition effect and loss aversion: Do gender differences matter?

This paper analyzes gender differences in the disposition effect in an experiment based on Weber and Camerer (1998). The results emphasize that female investors realize less capital losses, have significantly higher disposition effects and are more loss averse than men.     

Spillovers between Bitcoin and other assets during bear and bull markets

This article contributes to the embryonic literature on the relations between Bitcoin and conventional investments by studying return and volatility spillovers between this largest cryptocurrency and four asset classes (equities, stocks, commodities, currencies and bonds) in bear and bull market conditions. We conducted empirical analyses based on a smooth transition VAR GARCH-in-mean model covering daily data from 19 July 2010 to 31 October 2017. We found significant evidence that Bitcoin returns are related quite closely to those of most of the other assets studies, particularly commodities, and therefore, the Bitcoin market is not isolated completely. The significance and sign of the spillovers exhibited some differences in the two market conditions and in the direction of the spillovers, with greater evidence that Bitcoin receives more volatility than it transmits. Our findings have implications for investors and fund managers who are considering Bitcoin as part of their investment strategies and for policymakers concerned about the vulnerability that Bitcoin represents to the stability of the global financial system.     

Stochastic dominance and behavior towards risk: The market for Internet stocks

Internet stocks registered large gains in the late 1990s, followed by large losses from early 2000. Using stochastic dominance theory, we infer how investor risk preferences have changed over this cycle, and relate our findings to utility theory and behavioral finance. Our major findings are as follows. First, risk averters and risk seekers show a distinct difference in preference for Internet versus “old economy” stocks. This difference is most evident during the bull market period (1998–2000) where Internet stocks stochastically dominate old economy stocks for risk seekers but not risk averters. In the bear market, risk averters show an increased preference for old economy stocks, while risk seekers show a reduced preference for Internet stocks. These results are inconsistent with prospect theory and indicate that investors exhibit reverse S-shaped utility functions.     

The Role of Market Sentiment in Asset Allocations and Stock Returns

Abstract

The authors investigate the role of mutual fund flows in incorporating market sentiment into asset prices. They show that retail investors adjust their investments among mutual fund categories in response to changes in market sentiment. Consistent with sentiment-induced price pressure through fund flows, they further find that firms favored by mutual funds, such as large-cap, dividend payers, and firms with high institutional ownership are sensitive to market sentiment. The authors construct a pricing factor representing sentiment risk and find that the sentiment factor is significant in standard asset pricing models and robust to various sorting procedure.     

Asymmetric spillover effects between the Shanghai and Hong Kong stock markets: evidence from quantile lagged regression

This article surveys the asymmetric spillover effects between the mainland China-based Shanghai Composite Index (SCI) and the Hong Kong based Hang Seng Index (HSI) using a quantile lagged regression model. Compared to previous studies, this article, based on data before and after the 2008 global financial crisis, presents a more detailed analysis, as we investigate the spillovers in terms of returns, volatilities and exchange rates between the renminbi (RMB) and the Hong Kong dollar (HKD) throughout the entire conditional return distribution, including the central quantiles, which are closely related to the normal circumstances, and the extreme quantiles, which correspond to the bear and bull markets. First, we find that the return spillovers from its lagged returns or from the other index not only vary across time but also depend on stock state. Second, while return volatility may boost the stock market in a bull market, it accelerates the decline in a bear market. Third, the depreciation of the RMB relative to the HKD does not significantly affect current returns for the HSI, while it negatively affects current returns for the SCI in a bad state after the crisis. The findings presented in this article will facilitate investors’ understanding of the two stock markets.     

Bull or bear markets: A wavelet dynamic correlation perspective

In this paper, we contribute to the literature on the international stock market co-movements and contagion, especially during the recent subprime crisis, by researching the interconnections between international stock markets in time-frequency domain.Our innovative approach consists on carrying out a wavelet decomposition of return time series before investigating the correlation dynamics across stock markets during the recent financial crisis. It thus enables us to show how the contagion dynamics between international stock market returns are changing across time scales corresponding to investors with heterogeneous time horizons. Moreover, our results reveal that the contagion dynamics depends on the bull or bear periods of stock markets, on stock markets maturity, and on regional aspects. Therefore, all these finding should be considered from an international portfolio diversification perspective.     

Evidence of the duration-dependence from the stock markets in the Pacific Rim economies

This article investigates the duration-dependent feature of five Pacific Rim economies. The duration-dependent Markov Switching model is employed to achieve this objective. The Savage–Dickey density ratio is also computed in support of the duration-dependent Markov switching model. The possible bull and bear market dates for each stock market are also identified by the posterior probability from the empirical model. It is unambiguous that Japan, South Korea and Hong Kong are all characterized by duration-dependence in a bear market but no duration-dependence in a bull market. In the case of Taiwan and Singapore, the duration-dependence feature holds for both the bear and bull markets.     

论适应性预期下中国投资者对股市主观概率的测定

股市的涨跌离不开投资者的预期,在适应性预期的条件下,我们可以测定投资者对股市看法的主观概率。通过对我国股市十几年的数据分析,可以发现我国投资者对股市看法的主观概率是有规律的,投资者不会连续预测股市好转也不会连续预测股市恶化,一般都是以不超过两年为一个好转或恶化的阶段。     

Quantile spillovers and dependence between Bitcoin,equities and strategic commodities

This paper has two aims. We first examine the dynamic spillovers between Bitcoin and 12 developed equities, gold, and crude oil for different market conditions using a Bayesian Time-Varying Parameter Vector Autoregressive (TVP-VAR) model with daily spot prices. Our econometric approach enables us to capture the left and right tails as well as the shoulders of the return distribution corresponding to volatility spillovers under the bear, normal, and bull market states among these financial assets. We quantify and trace the dependence and directional predictability from Bitcoin to other assets using the sample cross-quantilogram. Our key findings offer convincing evidence of time variation in the level of volatility. Spillovers between Bitcoin and other financial assets intensify during extreme global market conditions. Secondly, results from the cross-quantilogram indicate strong dependence and positive directional predictability between Bitcoin and most equities and crude oil when market returns are bullish. However, during the bearish market period, there is negative dependence and predictability from Bitcoin to stocks in Finland, the Netherlands, the U.S.A, and the crude oil market only. This implies that Bitcoin can act as a hedge to stocks in Finland, the Netherlands, the U.S.A, and the crude oil market. However, insignificant dependence and directional predictability from Bitcoin to the remaining assets indicate that Bitcoin may act as a safe-haven to these assets during bearish markets. Our findings hold important implications for both international investors and portfolio managers who consider Bitcoin as part of their portfolio diversification and other investment strategies.