高校教师亚健康状态及主观因素分析

目前,健康已成为公众普遍关注的热点和焦点,健康的重要性正被越来越多的人所认识。高校教师是社会人才培养者,是国家最宝贵的人力资本,他们的健康问题已成为制约教师自身和高校协调发展的重要因素之一。引发亚健康状态的原因是复杂的,但教师自身的心理调节能力、行为生活方式、人际关系、缺乏体育锻炼等因素是造成亚健康状态的重要因素。正确认识亚健康状态以及形成的因素,方可进行有效预防和治疗。     

Profiling mobile TV adopters in college student populations of Korea

By profiling demographic characteristics, perceived general adoption attributes, perceived value-based adoption attributes, motivational needs, mass media use, and content interest, this exploratory study examines the nature of four categories of mobile TV adopters — current, potential, continuous non-, and discontinuous user groups. Despite the limited sample size (N = 214), there are some meaningful findings. First of all, the non-adoption rate of mobile TV of the continuous non-, and discontinuous user groups is higher than the adoption rate of the current and potential user groups. Less than half of the respondents (N = 34) who had used TV on a mobile device were unwilling to use it again in the next twelve months, and almost half of those (N = 102) did not have the intention of using it within the coming year. The results suggest that the discontinuous group seems to have been dissatisfied with the actual mobile TV use when compared with their expectations and evaluations, while the potential user group is more likely to have high expectations and positive evaluations before the adoption and use of mobile TV. All user groups were unwilling to pay the fee, despite the current and potential user groups perceiving the exceptional values. No differences were found in the personality trait of innovativeness and mass media use behaviors among the four groups.     

Building internal business scenarios based on real data from a performance measurement system

This paper presents a new methodology to build internal business scenarios from the data gathered by some key performance indicators (KPIs) defined within a performance measurement system. The application of the principal components analysis technique leads to the identification of latent relationships between KPIs that underlies some important business aspects. Further, this methodology allows to represent not only the temporal evolution of the organisation as a function of these business aspects but also the definition and determination of internal business scenarios, being therefore the source of meaningful managerial information. At the end of the paper, results of a practical application are presented and discussed, as well as their importance for the organisation from a decision making point of view.     

Switching intention model development: Role of service performances,customer satisfaction,and switching barriers in the hotel industry

The intricate relationships among core service and service encounter performances, customer satisfaction, and switching barriers in the formation of satisfaction and switching intention were examined in this study. A field survey was conducted at upper-midscale hotels. The results of the structural analysis revealed that both core service and service encounter performances significantly affected customer satisfaction, and satisfaction completely mediated the effects of service performances on switching intention. In addition, findings from the tests for metric invariances indicated that components of switching barriers (switching costs, relational investment, and lack of alternatives’ attractiveness) moderated the relationships between satisfaction and switching intention. In particular, the role of satisfaction derived from service performances in decreasing hotel guests’ intention to switch is greater when they perceive high switching costs, relational investment, and lack of alternatives’ attractiveness. Based on study findings, theoretical and practical implications are identified and discussed.     

事业单位会计如何做好基建财务工作

随着社会主义市场经济的不断发展,我国经济实力不断增强,相关事业单位的基建项目也日渐增多,使基建会计所处的客观经济环境发生了很大变化,对基建会计工作的要求也越来越高。由于对相关制度的学习检查不够以及会计人员自身素质等原因,一些基本建设单位存在会计核算不规范、财务管理不到位、监督职能未发挥等问题。     

Herding and bank runs

Traditional models of bank runs do not allow for herding effects, because in these models withdrawal decisions are assumed to be made simultaneously. I extend the banking model to allow a depositor to choose his withdrawal time. When he withdraws depends on his consumption type (patient or impatient), his private, noisy signal about the quality of the bank's portfolio, and the withdrawal histories of the other depositors. Some of these runs are efficient in that the bank is liquidated before the portfolio worsens. Others are not efficient; these are cases in which the herd is misled.     

高铁开通与城市创新研究综述

高铁网络的建设大大提高了中国铁路运输的效率,缩短了不同城市之间的时空距离,使居民在不同城市工作和消费成为可能。同时高铁服务通过加速人口和要素在区域间的流动,对城市之间的空间联系和城市社会经济的发展产生了重要的影响。高铁在影响经济格局的同时也深刻影响了区域的创新格局,现通过梳理相关文献,整理归纳了高铁开通对城市创新的影响及其作用机制,并对现有的实证研究方法进行总结。在此基础上提出目前存在的问题,为后续的研究指明方向。     

新冠肺炎疫情背景下全球促进贸易便利化的国际实践与经验借鉴

全球性新冠肺炎疫情爆发重创世界经济和国际贸易,世界贸易组织、世界海关组织和各主要经济体纷纷出台措施,从农业、中小微企业、电子商务、医疗物品运输等多方面应对新冠肺炎疫情的负面影响。与此同时,我国在简化海关手续和加快清关,物流、运输和转运便利,以及电子化贸易便利化措等方面都出台了应对新冠肺炎疫情的相关措施,维护供应链完整性和保护人民安全。     

Optimal excess-of-loss reinsurance contract with ambiguity aversion in the principal-agent model

ABSTRACT

We discuss an optimal excess-of-loss reinsurance contract in a continuous-time principal-agent framework where the surplus of the insurer (agent/he) is described by a classical Cramér-Lundberg (C-L) model. In addition to reinsurance, the insurer and the reinsurer (principal/she) are both allowed to invest their surpluses into a financial market containing one risk-free asset (e.g. a short-rate account) and one risky asset (e.g. a market index). In this paper, the insurer and the reinsurer are ambiguity averse and have specific modeling risk aversion preferences for the insurance claims (this relates to the jump term in the stochastic models) and the financial market's risk (this encompasses the models' diffusion term). The reinsurer designs a reinsurance contract that maximizes the exponential utility of her terminal wealth under a worst-case scenario which depends on the retention level of the insurer. By employing the dynamic programming approach, we derive the optimal robust reinsurance contract, and the value functions for the reinsurer and the insurer under this contract. In order to provide a more explicit reinsurance contract and to facilitate our quantitative analysis, we discuss the case when the claims follow an exponential distribution; it is then possible to show explicitly the impact of ambiguity aversion on the optimal reinsurance.