On the performance of the minimum VaR portfolio

Alexander and Baptista [2002. Economic implications of using a mean-value-at-risk (VaR) model for portfolio selection: A comparison with mean–variance analysis. Journal of Economic Dynamics and Control 26: 1159–93] develop the concept of mean-VaR efficiency for portfolios and demonstrate its very close connection with mean–variance efficiency. In particular, they identify the minimum VaR portfolio as a special type of mean–variance efficient portfolio. Our empirical analysis finds that, for commonly used VaR breach probabilities, minimum VaR portfolios yield ex post returns that conform well with the specified VaR breach probabilities and with return/risk expectations. These results provide a considerable extension of evidence supporting the empirical validity and tractability of the mean-VaR efficiency concept.     

A closer look at return predictability of the US stock market: evidence from new panel variance ratio tests

This paper examines the return predictability of the US stock market using portfolios sorted by size, book-to-market ratio and industry. We use novel panel variance ratio tests, based on the wild bootstrap proposed in this paper, which exhibit desirable size and power properties in small samples. We have found evidence that stock returns have been highly predictable from 1964 to 1996, except for a period leading to the 1987 crash and its aftermath. After 1997, stock returns have been unpredictable overall. At a disaggregated level, we find evidence that large-cap portfolios have been priced more efficiently than small- or medium-cap portfolios; and that the stock returns from high-tech industries are far less predictable than those from non-high-tech industries.     

An Analysis of Contrarian Investment Strategies in the UK

The performance of contrarian, or value strategies – those that invest in stocks that have low market value relative to a measure of their fundamentals – continues to attract attention from researchers and practitioners alike. While there is much extant evidence on the profitability of value strategies, however, most of this evidence pertains to the US. In this paper, we provide a detailed characterisation of value strategies using data on UK stocks for the period 1975 to 1998. We first undertake simple one-way and two-way classifications of stocks in which value is defined using both past performance and expected future performance. Using sales growth as a proxy for past performance and book-to-market, earnings yield and cash flow yield as measures of expected future performance, we find that that stocks that have both poor past performance and low expected future performance have significantly higher returns than those that have either good past performance or good expected future performance. Allowing for size effects in returns reduces the value premium but it nevertheless remains significant. We go on to explore whether the profitability of value strategies in the UK can be explained using the three factor model of Fama and French (1996). Broadly consistent with the results for the US, we find that using the one-way classification the excess returns to almost all value strategies can be explained by their loading on the market, book-to-market and size factors. However, in contrast with the US, using the two-way classification there are excess returns to value strategies based on book-to-market and sales growth, even after controlling for their loading on the market, book-to-market and size factors.     

New Evidence on Risk Factors, Characteristics and the Cross-Sectional Variation of Japanese Stock Returns

This paper examines whether the cross-sectional variations in stock returns are better described by systematic risk factors or by firm characteristics such as book-to-market ratios and market capitalization. It provides new evidence from the Japanese stock market based on the recent sample period from 2002 to 2007, which is not addressed in the existing literature. Also, the new results are derived from the generalized method of moments applied to daily returns. The evidence suggests that both the firm size and book-to-market ratio are significantly related to average return premiums. There is mixed evidence, which tends to lend stronger support to the characteristic model rather than the Fama-French three-factor model as more reflective of the return dynamics in the Japanese stock market.     

发现基本面价值：基于中国数据的基本面加权指数研究

自 Arnott 和 Hsu 在2005年提出基本面加权指数以来,基本面加权指数的研究结果在世界各主要市场都得到了验证。因我国股票市场规模化的历史相对较短,这一方面的研究也存在一些欠缺。基于2002~2014年沪深股市的全部 A 股数据,通过构建基本面加权指数,将其与沪深300指数进行全面的对比,并用 CAPM、三因子模型、四因子模型对基本面加权指数的收益进行检验。研究发现：基本面加权指数的表现显著优于沪深300指数的表现且结论通过了各项稳健性检验,表明基本面加权指数在我国市场已初步具备实战应用价值。     

Financial Sector Risk and the Stock Returns: Evidence from Tokyo Stock Exchange Firms

We investigate whether the activity of financial firms creates value and/or risk to the economy within the asset pricing framework. We use stock return data from nonfinancial firms listed in the first section of the Tokyo Stock Exchange. The value-weighted index that is solely composed of nonfinancial firms is augmented with the index of the firms from the financial sector, and we estimate multivariate asset pricing model with these two indices. We note that our procedure can simultaneously take into account the cross-holding phenomena among Japanese firms, especially between the financial sector and the nonfinancial sector. Our augmented index model performs well both with cross-sectional Fama and MacBeth regression test and GMM test. Our two index model with additional Fama and French's HML factor can capture cross-sectional variations of the returns of sample portfolios better than the original Fama and French model can, when measured by Hansen and Jagannathan distance measure. We find that this additional new sector variable can be a substitute for Fama and French's size factor, but not related to the bond index return. This variable has similar factor characteristic as money supply growth or the term structure, but the latter variables contain more information than the former. Morever, our financial sector model helps explain the return and risk structure of Japanese firms during the so-called bubble period.     

Idiosyncratic momentum and the cross‐section of stock returns: Further evidence

In this article, we evaluate the profitability and economic source of the predictive power of the idiosyncratic momentum effect, by using five popular asset pricing models to construct the idiosyncratic momentum. We show that all five idiosyncratic momentum strategies produce similar return predictability and consistently outperform the conventional momentum strategy in the cross‐sectional pricing of equity portfolios and individual stocks. This positive effect of idiosyncratic momentum on returns is consistent with the investment capital asset pricing model (CAPM). Further analysis reveals that the firm‐level idiosyncratic momentum effect cannot extend to the aggregate stock market.     

Constructing and Testing Alternative Versions of the Fama–French and Carhart Models in the UK

This paper constructs and tests alternative versions of the Fama–French and Carhart models for the UK market with the purpose of providing guidance for researchers interested in asset pricing and event studies. We conduct a comprehensive analysis of such models, forming risk factors using approaches advanced in the recent literature including value‐weighted factor components and various decompositions of the risk factors. We also test whether such factor models can at least explain the returns of large firms. We find that versions of the four‐factor model using decomposed and value‐weighted factor components are able to explain the cross‐section of returns in large firms or in portfolios without extreme momentum exposures. However, we do not find that risk factors are consistently and reliably priced.     

民币对美元日汇率决定模型研究

基于汇率决定理论的最新研究进展．本文分析了人民币对美元日汇率的影响因素。研究发现,宏观经济新闻、外汇市场微观因素买卖价差是人民币对美元日汇率的重要影响因素,而中美相对利率并不是人民币对美元日汇率的影响因素。进一步,本文将随机游走模型、新闻变量以及外汇市场微观因素结合起来,构建了人民币对美元日汇率决定理论模型。实证研究发现,人民币对美元日汇率由自身滞后值、中国经济活动方面的新闻和零售市场买卖价差决定。     

Market segmentation and the valuation of closed-end country funds: An empirical analysis

This article examines the role of market segmentation on the valuation of the U.S. stock exchange-listed closed-end country funds and analyzes the determinants of net fund premia in a multivariate context. It is shown that fund returns are generally sensitive to both national and U.S. market factors, but only national factors are priced. Cross-section and time series estimation of net fund premia indicates the importance of market segmentation as a determinant of net fund premia. There is some evidence that exchange rate changes may exert an additional influence. However, market expectation variables such as economic growth of the country or relative capitalization rates are insignificant.     

The impact of multilateral trading facilities on price discovery: Further evidence from the European markets

This study examines relative price discovery for three major European indices, FTSE, CAC, and DAX, their futures and exchange traded funds (ETFs) using the data on 5‐minute intraday transaction prices over a four‐year period. We computed both Hasbrouck (1995) information share with error bounds and Gonzalo and Granger's (1995) common factor weights approach. Gonzalo and Granger's (1995) common factor weights suggest the index futures contracts play a dominant role in price discovery in the CAC market: the CAC 40 index futures lead the price discovery and Lyxor CAC 40 ETFs serving the second resort for information transmission. This could be due to the less frequent trading of ETFs. More importantly, CAC40 under the Gonzalo & Granger (1995) test shows upper and lower error bounds in good range may be the main reason to drive for the meaningful results. In contrast, the upper and lower bounds estimated from the Hasbrouck (1995) are far distant for most cases. Finally, FTSE and DAX markets offer compelling evidence to show that ETFs lead price discovery and spots and futures follows.     

Theoretical and Empirical Evidence for the Impact of Cross-Border Production Sharing on Exchange Rate Pass-Through

This paper uses the theoretical model created by Ghosh (2009) to analyze the extent of exchange rate pass-through (ERPT) for traditional trade and different production sharing cases. Comparing the differences among these scenarios reveals that production sharing could be a reason for the continual decline in ERPT. Furthermore, empirical evidence from Taiwan indicates that under production sharing, the pricing-to-market for intermediate goods exporters and the currency fluctuation in the home country of end products exporters will further influence the magnitude of the decline in ERPT.     

Pre-holiday effects: International evidence on the decline and reversal of a stock market anomaly

The pre-holiday effect is one of the best known of the calendar effect anomalies. This paper extends prior work by examining whether the effect has declined for the U.S., U.K. and Hong Kong markets. For all three markets, the effect is shown to have declined, but only significantly in the U.S. The result is not surprising given the relative sophistication of the market. What is surprising, however, is the reversal of the pre-holiday effect during the period 1991–1997, with the mean return on pre-holiday days becoming negative, and the subsequent elimination of this effect during 1997–2003.     

开放条件下信用评级市场发展及监管问题研究

自2017年起,我国信用评级市场开始加速对外开放,我国信用评级市场间机构竞争格局必将产生新变化,信用评级水平必将得到有效提升.在开放条件下,我国信用评级监管可以借鉴美国经验,重点关注监管法治建设层级不足、金融安全风险、利益冲突等问题.因此,应加快各地《信用评级业管理暂行办法》等配套制度建设;完善市场退出机制,加强信用评...     

The effect of settlement regimes on trading cost and market efficiency: evidence from the National Stock Exchange

Using data from 65 of the most actively traded stocks from the National Stock Exchange of India we study the relationship between impact cost and three indicators of market efficiency under different settlement regimes. Our data is uniquely suited for this study because it encompasses a transition by the National Stock Exchange of India from fixed to rolling settlement. As a by-product of our study we are able to examine inefficiencies related to the day of the week on which trades are conducted for different settlement regimes. In summary our data reveals that rolling settlement reduces aggregate impact costs, leading to greater market efficiency. Employing a fixed effects model we show that impact cost has a stronger relationship to our indicators of market efficiency under rolling settlement. However, we find evidence of two structural inefficiencies related to the day-of-the-week on which trades are conducted: 1) under rolling settlement, trades conducted earlier in the week (and settled by Thursday) have lower impact costs, and 2) there is an impact cost premium for Friday trades.     

Adjustment of the Stamp Duty on Stock Transactions and Its Effect on the Chinese Stock Market

This paper studies how the last three adjustments of the stamp duty on stock transactions (SDST) have affected trading behavior on the Chinese stock market. To exclude other shocks from our event study, we focus only on the SDST's short-term effects. Based on an interval autoregressive (IAR) model, we find that the SDST's effects on interval return are trivial; moreover, its ability to influence market volatility and trading volume is cast into doubt. Our empirical evidence lends support to the view that in China the SDST is not an effective policy tool.     

The effect of corporate social responsibility on stock performance: new evidence for the USA and Europe

This paper provides new empirical evidence for the effect of corporate social responsibility on corporate financial performance. In contrast to former studies, we examine two different regions, namely the USA and Europe, and disentangle firm and sector specific impacts. Our econometric analysis shows that environmental and social activities of a firm compared with other firms within the industry are valued by financial markets in both regions. However, the respective positive effects on average monthly stock returns between 2003 and 2006 are more robust in the USA and, in addition, non-linear. Our analysis furthermore points to biased parameter estimates if incorrectly specified econometric models are applied: the seemingly significantly negative effect of environmental and social performance of the industry to which a firm belongs strongly declines and mostly becomes insignificant if the explanation of stock performance is based on the Fama–French three-factor or the Carhart four-factor models instead of the simple Capital Asset Pricing Model.     

混合供给模式下巨灾保险市场的激励与约束研究

巨灾保险具有准公共物品属性,既可以由政府提供,也可以由市场提供,单纯依靠政府和私人市场提供都存在较大弊端,政府和私人部门合作,采用混合供给模式可以形成互补优势,提高效率,这已成为国际巨灾保险市场发展的一大趋势。本文以混合供给模式下的巨灾保险市场为对象,分析巨灾保险市场中的委托代理关系,并对如何构建有效的激励与约束机制进行了初步探讨。     

基于GARCH模型的黄金指数与美元指数波动性研究

近几年的黄金市场与美元指数市场波动都比较大,但波动的方向不一致。通过对两者的波动进行研究,主要有单位根检验、ARCH效应的检验、GARCH模型分析以及因果关系检验,结果表明,黄金指数GARCH(1,1)最适合描述其市场波动,美元指数GARCH(2,1)最适合描述其市场波动,美元指数的预测对黄金指数的预测会有帮助。