中国股市波动性研究——基于Shiller-Sentana-Wadhwani模型

股票市场的价格波动并非像传统金融学所说得那样围绕公司基本价值进行小幅震荡，常常表现出大幅波动的特征。本文采用基于garch模型作出的Shiller-Sentana-Wadhwani模型对中国股票市场成立十多年的股价波动进行实证研究，得出中国股票市场存在反馈交易且其程度随着股价波动的增大而提高、随着涨跌限制而加大的结论。     

对建立高职院校实践教学评价反馈机制的思考——以旅游管理专业为例

该文以旅游管理专业为例,介绍该专业的实践教学如何结合高职教育的人才培养特征、旅游行业的特点和旅游企业的运行状况,来规范实践教学管理的组织机构、实习计划的制定和实施、实习效果考核指标体系,特别是对尚属薄弱环节的实践教学效果的评价反馈方面,提出了一些见解。     

电话远程控制系统的实现

文章阐述了一种电话远程控制系统,并对其系统结构、各部分功能的实现和系统软件程序流程及主要软件功能进行了讨论,其摘机电路、挂机电路、密码电路简单实用;其受控对象如窗户状态、电器状态的反馈与控制电路稳定可靠。     

合格境外机构投资者投资行为的实证分析

根据QFII每季度公布的投资组合数据,对其交易行为进行研究,结果发现:QFII存在正向反馈策略和"羊群行为",而已有的研究证明,正向反馈策略和"羊群行为"不利于股票市场稳定。因此,要注意加强对QFII投资的监管,尤其是QFII信息披露的监管。     

网络经济正反馈系统动力学模型分析

随着计算机网络技术飞速发展,网络化和全球化已成为不可抗拒的世界潮流。网络经济正渐渐取代传统的工业经济,人类社会正在迈向网络经济时代。网络经济作为一种新经济形态,存在着与传统经济不同的新特点。本文从系统动力学观点出发,在分析网络经济基础上,提出了网络经济正反馈系统动力学模型,探讨了正反馈效应带来的网络经济新特点。     

基于复合战略控制系统的战略执行力研究

从控制理论的角度对战略控制系统与战略执行力的关系、传统战略控制系统进行了分析,在此基础上构建了基于复合战略控制系统的战略执行流程,为提高战略执行力提供了一种新思路。     

Investor Sentiment,Trading Behavior and Informational Efficiency in Index Futures Markets

This paper shows that traders in index futures markets are positive feedback traders—they buy when prices increase and sell when prices decline. Positive feedback trading appears to be more active in periods of high investor sentiment. This finding is consistent with the notion that feedback trading is driven by expectations of noise traders. Consistent with the noise trading hypothesis, order flow in index futures markets is less informative when investors are optimistic. Transitory volatility measured at high frequencies also appears to decline in periods of bullish sentiment, suggesting that sentiment‐driven trading increases market liquidity.     

农村老年人代际经济反馈的影响因素分析——基于CHARLS全国基线调查数据

农村老年人代际经济反馈是本土化家庭养老研究领域的重要问题。论文运用"中国健康与养老追踪调查"(CHARLS)全国基线数据,以亲子两代分居家庭为研究对象,通过非条件logistic模型,分析了微观领域影响农村老年人代际经济反馈的因素。研究结果表明:在个体因素层面,年龄对代际经济反馈呈现正向显著性影响,受教育程度则为负向显著性影响;在家庭因素层面,子女数量以及对孙辈的投资状况等因素对农村老年人代际经济反馈存在着正向显著性影响。基于数据结果,论文提出了加强对农村高龄老年人的关注、加快农村养老制度建设以及积极提升家庭发展能力等对策。     

Positive feedback trading and long-term volatility links: evidence from real estate markets of USA,Be/Lux and Switzerland

This article investigates the positive feedback trading strategies in the real estate markets of USA, Belgium/Luxembourg (Be/Lux) and Switzerland, linking these strategies with long-term volatility. The results are in favour of a positive feedback trading strategy which negatively influences investors' risk-return position on real estate markets.     

When Feedback Interventions Backfire: Why Higher Performance Feedback May Result in Lower Self‐Perceived Competence and Satisfaction with Performance

In relative performance evaluation systems, appraisers may choose to adopt stricter or laxer evaluation criteria. When laxer (vs. stricter) criteria are used, higher absolute performance evaluations become easier (vs. harder) to achieve. Thus, each appraisee's absolute performance feedback and the mean of the distribution of absolute performance feedback are shifted upward (vs. downward). Yet, relative performance remains constant. When evaluation outcomes depend solely on relative performance, can the adoption of laxer (vs. stricter) criteria—leading to higher absolute performance feedback but no change in relative performance—influence appraisees’ satisfaction with performance? Despite the ubiquity of such systems in organizations, research has not addressed this question. This article points to an important gap between practitioners’ beliefs and research findings. We show that while most appraisers believe that higher absolute performance feedback will automatically result in more satisfaction with performance, the opposite may also happen. Specifically, we find that appraisees with a stronger (vs. weaker) chronic or contextual need to engage in social comparison are more satisfied with lower (vs. higher) absolute performance feedback. Overall, we demonstrate why and how feedback interventions in relative performance evaluation systems may backfire, and suggest a set of practical guidelines for maximizing appraisees’ satisfaction with performance in such systems. © 2015 Wiley Periodicals, Inc.