Horse race of weekly idiosyncratic momentum strategies with respect to various risk metrics: Evidence from the Chinese stock market

This paper focuses on the horse race of weekly idiosyncratic momentum (IMOM) with respect to various idiosyncratic risk metrics. Using the A-share individual stocks in the Chinese market from January 1997 to December 2017, we first evaluate the performance of the weekly momentum based on raw returns and idiosyncratic returns, respectively. After that the univariate portfolio analysis is conducted to investigate the return predictability with respect to various idiosyncratic risk metrics. Further, we perform a comparative study on the performance of the IMOM portfolios with respect to various risk metrics. At last, we explore the possible explanations to IMOM as well as risk-based IMOM portfolios. We find that 1) there are prevailing contrarian effect and IMOM effect for the whole sample; 2) the negative relations exist between most of the idiosyncratic risk metrics and the cross-sectional stock returns, and better performance is linked to idiosyncratic volatility (IVol) and maximum drawdowns (IMDs); 3) additionally, the IVol-based and IMD-based IMOM portfolios exhibit better explanatory power to the IMOM portfolios with respect to other risk metrics; 4) finally, higher profitability of IMOM as well as IVol-based and IMD-based IMOM portfolios is found to be related to upside market states, high levels of liquidity and high levels of investor sentiment.     

Is insurance normal or inferior? -A regret theoretical approach-

This study considers how changes in wealth affect insurance demand when individuals suffer disutility from regret. Anticipated regret stems from a comparison between the ex-post maximum and actual wealth. We consider a situation wherein individuals maximize their expected utility incorporating anticipated regret. The wealth effect on insurance demand can be classified into the risk and the regret effects. These effects are determined by the properties of the utility function and the regret function. We show that insurance can be normal when individuals place weight on anticipated regret, even though the utility function exhibit decreasing absolute risk aversion. This result indicates that regret theory is a possible explanation to the wealth effect puzzle, in which insurance is normal from empirical observation, but it should be inferior by theoretical prediction under expected utility theory.     

网页设计中的色彩探析

文章从色彩的基本知识以及色彩搭配的原理两个方面,分析网页设计中的色彩搭配最佳视觉效果。     

浅谈知识经济对人力资源会计的影响

会计作为人类把握社会经济信息、了解社会经济活动的应用学科,面临着知识经济的挑战。知识经济时代的到来也为人力资源会计的推广创造了历史性的契机。     

化妆品灌装间紫外线消毒后的效果观察

文章采用自然沉降法,对化妆品灌装间紫外线消毒后的效果进行监测。监测3次得出结论：在消毒后一个工作日内至22个小时内,灌装车间空气质量符合化妆品卫生规范要求。     

Forecasting the volatility of asset returns: The informational gains from option prices

A new class of forecasting models is proposed that extends the realized GARCH class of models through the inclusion of option prices to forecast the variance of asset returns. The VIX is used to approximate option prices, resulting in a set of cross-equation restrictions on the model’s parameters. The full model is characterized by a nonlinear system of three equations containing asset returns, the realized variance, and the VIX, with estimation of the parameters based on maximum likelihood methods. The forecasting properties of the new class of forecasting models, as well as a number of special cases, are investigated and applied to forecasting the daily S&P500 index realized variance using intra-day and daily data from September 2001 to November 2017. The forecasting results provide strong support for including the realized variance and the VIX to improve variance forecasts, with linear conditional variance models performing well for short-term one-day-ahead forecasts, whereas log-linear conditional variance models tend to perform better for intermediate five-day-ahead forecasts.     

阿里巴巴并购饿了么的动因和财务风险分析

在经济全球化的背景下,为扩大企业经营规模,并购成为企业很好的选择。论文以阿里巴巴收购饿了么为例,研究阿里巴巴收购饿了么的动因,分析并购为阿里巴巴这个典型的互联网企业带来的财务风险,并为互联网企业的并购提供宝贵的建议。     

基于EGARCH模型的我国向美国出口变动杠杆效应分析

本文运用EGARCH计量模型,对我国向美国出口增速变动进行杠杆效应分析。模型结果显示,出口增速在负向冲击下比受到正向冲击时的波动更加剧烈。次贷危机的恶化,也将会对我国向美国出口增速产生较大的负面影响,从而影响我国的整体出口。对此,文章给出了相关建议。     

供应链中“牛鞭效应”的管理

概述了供应链管理中的牛鞭效应,阐明了牛鞭效应对供应链管理的危害,通过对供应链上各个环节和操作方式进行深入的分析,找出了形成牛鞭效应的原因,最后针对牛鞭效应的成因提出供应链管理中对牛鞭效应进行控制的一系列措施。     

Managerial mindset as the mechanism of the country-of-origin effect: evidence from Chinese multinational enterprises’ approach to employer associations

The country-of-origin effect (COE) on employment practices in multinational enterprises (MNEs) has become an important area of international human resource management research. However, research on the mechanisms of the COE, a fundamental and critical aspect of the country-of-origin phenomenon, is scant. This study seeks to empirically explore the mechanisms through which country-of-origin influences Chinese MNEs’ approach to host-country employer associations. Analysis of qualitative data from 13 Chinese MNEs revealed that country of origin affected the approach of Chinese MNEs to host-country employer associations in the form of transfer of managerial norms. It also revealed that it was the mindset of those home-country nationals who were key decision-makers at subsidiaries that enabled the COE in Chinese MNEs. This paper highlights the importance for future studies of international strategic human resources management to pay attention to micro-foundations of cross-border practice transfer and to incorporate analyses of managerial cognition in the investigation of MNEs’ management practices.