Effects of teleconferencing technologies: An exploration of comprehension,feedback, satisfaction and role-related differences

Several theoretical approaches have been put forth to predict and explain the effects of teleconferencing technologies. One approach is to examine the functions of nonverbal signals and to make predictions based on the fact that different teleconferencing technologies allow nonverbal communication to different extents. One of the functions of nonverbal signals is to allow the listener to provide feedback to the speaker in a communication. Prior research has shown that such feedback enhances listener comprehension. In this study, it was hypothesized that different teleconferencing technologies would allow different levels of feedback based on their ability to accommodate nonverbal signals, and this in turn would affect comprehension. An experimental study was conducted to compare comprehension, feedback, and satisfaction in telephone and computer conferencing. The study confirmed that comprehension and speaker satisfaction are related to feedback, but failed to show a relationship between listener satisfaction and feedback. No difference in comprehension, listener, or speaker satisfaction was observed across teleconferencing technologies. Role-related differences were observed between the speaker and the listener. It is suggested that the effects of teleconferencing technologies can be mapped systematically by examining each of the functions of nonverbal signals, one at a time.     

A dynamic model of R&D competition

This study considers a dynamic model of R&D competition in a situation of no uncertainty with identical firms in a perfect foresight. We are going to find out about the effects of firms' absorptive capacity on R&D strategies in the presence of technological spillovers. The conditions for the existence and uniqueness of a feedback–Nash equilibrium on firms' R&D expense will be also discussed. Numerical simulations will show as the introduction of the absorptive capacity reduces the impact of spillovers degree on firms' R&D strategies.     

中国房地产泡沫与非泡沫--以投机理论为基础的实证分析

文章在对当前房地产泡沫若干观点作简单综述和对房地产泡沫定义辨析的基础上,建立了房地产投机泡沫检验模型,并对中国房地产业泡沫性与非泡沫性进行了实证研究,最后得出当前中国房地产业不存在投机泡沫的结论。     

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。     

Does Team-Based Compensation Give Rise to Problems When Agents Vary in Their Ability?

This paper reports the results of an experiment on how team heterogeneity in terms of productivity influences both the revenue sharing proposed by the principal to the team and the employees' performance. Experimental evidence shows that when the team is heterogeneous, the principal does not try to motivate the agents through her sharing offer. Regardless of the level of team-based compensation, a large amount of free riding occurs since each agent is mainly influenced by his teammate's behavior. In contrast, when the team is homogeneous, agents are better able to cooperate, reciprocating the principal's offer.     

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。     

上市公司主动信息披露行为的博弈分析

本文从同业竞争的简单博弈模型出发进行分析,得出了上市公司主动披露"好消息"但不主动披露"坏消息"的结论.而后,对市场监督机制存在的情况下对上市公司主动信息披露的行为进行博弈分析, 、得出了市场可预测与不可预测情况下上市公司的纳什均衡.最后,对外界监督压力存在的情况进行了博弈分析.上市公司一般会选择主动披露"好消息",但主动披露"坏消息"的行为则随约束条件的不同而变化.增强上市公司的同业竞争,提高上市公司对声誉的依赖性,提高监督效率,降低监督成本,提高监督的覆盖面,对提高上市公司主动信息披露行为会起积极作用.     

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。