“I live with terror inside me”: Exploring customers’ instinctive reactions to terror

Terrorist attacks occur mostly at public service-oriented sites. Consequently, their victims are likely to be customers. The present study explores how customers instinctively react toward the reality of terror in a matrix of 2 × 2 aspects concerning terror circumstances: temporal proximity (brief or long) and physical proximity (close or remote) from the terror event. In qualitative in-depth interviews, customers from France and Israel were requested to share their instinctive reactions and coping strategies when approaching hospitality (hedonistic) and transportation (utilitarian) services. Participants (N = 47) comprised customers having a protracted acquaintance with persistent terror threats. The analysis identified differences in reactions, subject to temporal and physical proximities. When terror attacks are physically close, customers’ emotions, cognitions, and behaviors undergo modification with time. However, when terror attacks occur at a location remote from the customer, customers’ emotions and cognitions, but not their behavior, change with time. These reactions were comparable for the two service contexts. Practical implications were elaborated to enable service establishments (i.e., hospitality and transportation) to design and manage their operations for the short and long term to assist customers in the difficult era of terror.     

隐性杠杆约束、流动性风险和投资者情绪

本文以2003—2019年间开放式主动管理型的股票型和偏股型基金为样本,以持仓占比为权重估算基金投组中A股的总市场风险暴露,检验结果表明,该序列上升反映了基金面临的隐性杠杆约束收紧,刻画了市场的弱流动性。内在逻辑在于,流动性收紧时,投资者难以通过融资直接增加杠杆,更倾向于重仓持有高市场风险头寸的股票而间接实现杠杆。本文发现隐性杠杆约束所刻画的风险在股票或基金收益截面上的无条件定价基本失效,而条件定价则依赖于低市场情绪与弱流动性。分解基金持股的敞口,进一步发现,因中小盘基金在流动性收紧时具有更强的流动性偏好,其持股的市场风险头寸能够更敏锐地捕捉到弱流动性风险。     

Are USDA reports still news to changing crop markets?

This study investigates whether major USDA reports still provide important news to changing crop markets. The news component of each report, or market “surprise,” is measured as a difference between the USDA estimate and its private expectation in corn, soybeans, and wheat markets. Changes in the relevance of USDA information are assessed by examining changes in the magnitude of market surprises and shifts in the futures price reaction to these surprises, which isolates the impact of each report. The stable size of market surprises over time suggests that competition from alternative data sources has not reduced the news component of USDA crop reports. Increasing price reaction to most reports, including those facing competition from alternative information sources, suggests that value of public information may be enhanced in uncertain markets affected by structural changes.     

Investor Pessimism and the German Stock Market: Exploring Google Search Queries

We analyze the relationship of retail investor sentiment and the German stock market by introducing four distinct investor pessimism indices (IPIs) based on selected aggregate Google search queries. We assess the predictive power of weekly changes in sentiment captured by the IPIs for contemporaneous and future DAX returns, volatility and trading volume. The indices are found to have individually varying, but overall remarkably high explanatory power. An increase in retail investor pessimism is accompanied by decreasing contemporaneous market returns and an increase in volatility and trading volume. Future returns tend to increase while future volatility and trading volume decrease. The outcome is in line with the conjecture of correction effects. Overall, the results are well in line with modern investor sentiment theory.     

浅谈我国超细碳酸钙生产技术现状及发展方向

文章提出“碳化工艺连续化、活化剂复合化、活化技术组合化、活化温度常温化、干燥技术组合化和系统工程化”,应成为我国超细碳酸钙生产技术未来发展的主要方向,并论述了我国目前超细碳酸钙生产技术的现状,用连续鼓泡碳化工艺来改造现有碳化工艺,并提出了超重力反应结晶法的完善办法。     

活性污泥法降解苯酚模拟废水的动力学研究

研究了活性污泥法降解苯酚模拟废水的动力学规律。实验结果表明，活性污泥法对苯酚废水具有良好的降解性能，正常状态下，3h内COD去除率迭90％以上。降解过程符合一级反应动力学方程。不同污泥浓度时反应速率常数K1相差不大，提高苯酚初始浓度K1亦增大。pH值在4．8-9．1范围内，活性污泥保持良好的降解性能，pH值过大或过小时，微生物均受到抑制。在15-35℃，K-随温度的升高而增大，求得温度系数θ为1．054。     

我国股票市场行为及其影响因素分析

文章以2000年1月4日至2001年1月2日间在上海证券交易所A股市场交易的股票为样本,借鉴Debondt和Thaler(1985)的研究方法,发现我国股票市场存在明显的“反转趋势”,同时采用多元回归模型,分析影响反转趋势的主要因素,发现影响我国赢家组合和输家组合CAR反转的主要因素有形成期的CAR、换手率和公司资产规模。最后,作者从心理学和我国股票市场的制度背景探讨这种反转趋势的心理成因和制度成因。     

Terrorism activities and long-term annual management forecasts

We study the effects of terrorist attacks on firms’ long-term annual management earnings forecasts bias. We find that the managers of firms located closer to the epicenters of attacks are more likely to issue optimistic long-term annual earnings forecasts relative to the managers of a control group of unaffected firms. The exposure effect is stronger for more severe terrorist events, and firms with more uncertain fundamentals and less geographic diversification. In addition, we document that managers’ forecast optimism intensifies for firms with stronger negative stock market reaction to the terrorist event, for CEOs with higher ability and for companies that are more likely to issue equity or engage in acquisitions following the terrorist event. Overall, our results are consistent with the idea that long-term annual earnings forecasts are used by managers to counterbalance the short-term pessimistic response to terrorist attacks.     

基金业绩、基金经理更换与投资者财富效应——一项基于我国资本市场的实证研究

从基金管理公司内部的委托—代理关系出发,以封闭式基金为研究对象,从基金经理调整现状、基金业绩与基金经理调整的关系、基金经理调整公告的市场反应三个方面,对基金经理变动进行了实证分析。研究发现:基金业绩确实对基金经理更换及更换后的去向具有一定的参考价值,但基金经理更换并没有使更换经理后的基金业绩显著改善;基金经理公告确实引起了基金市场价格的变动,但没有使基金投资者的财富显著增加。     

深圳股市对股权分置改革有何反应——来自第二批试点公司的实证检验

本文以深圳股市第二批试点公司为研究样本，通过赢家、输家股票组合超常日收益率的统计分析。以及累积超常日收益率的趋势分析，研究深圳股市对股权分置改革的短期反应。实证检验结果表明。在短期内，深圳股市存在过度反应。并且在公司股改预案披露后30个左右交易日，市场做出反向修正．