论心理需要是信任产生的心理原因

文章试图从整个人类及其发展的视角来讨论信任现象的发生。通过回顾前人对信任产生原因的分析,笔者认为心理需要也应该是信任产生的重要原因。其中自我保护需要以及归属和爱的需要是信任产生的重要心理推动力。     

限幅自保护高温超导接收机前端研究

提出了一种新型的、具有限幅自保护功能的新型高温超导高性能接收机前端系统方案。采用将高温超导限幅滤波器前置于低噪放进行混合集成,利用高温超导限幅滤波器优异的滤波和限幅特性实现同时具有高灵敏度和自保护功能的接收机前端。实验结果表明该滤波器可以有效地保护后端的低噪放不被烧毁或阻塞。采用超导-常规电路混合集成工艺研制而成的限幅自保护高温超导接收机前端具有优异的接收灵敏度,总噪声系数小于0.7dB。     

Risk and Self-Protection: A State-Contingent View

This article is a brief outline of the implications of state-contingent production for the self-insurance problem. A general state-contingent approach to choice and production under uncertainty is presented. Upper and lower bounds for willingness-to-pay for reductions in ambient risk are derived.     

伦理视角下的社会保障制度

社会保障制度的建立和完善是政府和人民普遍关心的问题。本文针对己有研究的不足或薄弱之处,就伦理视角下的社会保障问题进行探讨,侧重从伦理层面分析我国社会保障中存在的道德冲突,如公平效率问题,劳动态度问题以及个人和家庭自我保障责任的弱化;并纂于伦理价值目标提出如何建立和完善德性的社会保障制度,即以人为本、兼顾效率与公平、自保和互济相结合。     

Pilot Evaluation of a Sexual Abuse Prevention Program for Taiwanese Children

The purpose of the current study was to develop and evaluate the efficacy of a school-based child sexual abuse prevention program for Taiwanese children. Forty-six Taiwanese children age 6 to 13 were divided into one of two groups based on their school grade and then randomly assigned to a skills-based child sexual abuse prevention program who received training immediately or a waiting-list control condition who received the training after a delay. Children's self-protection skills improved regardless of age after participation in the program. The program, however, did not successfully improve children's knowledge of sexuality and safety. Although future studies should modify the program content to better target knowledge of sexuality and safety, these results are promising for a pilot of this skills-based CSA prevention program in Taiwan.     

国外儿童性虐待解决之道——基于预防、教育、治疗三维系统视角

儿童性虐待是一个严重的社会问题,目前国外学者主张从预防、教育与治疗三个维度,构建起基于家庭、学校、社会、制度、相关服务机构等相互协同的良好社会生态系统,科学有效地解决儿童性虐待难题。     

机构投资者对其持股公司绩效的影响研究——基于机构投资者自我保护的视角

从机构投资者自我保护的视角出发, 通过构建公司内部人和机构投资者的博弈模型, 揭示了机构投资者对其持股公司绩效影响的微观机制.在此基础上, 实证研究我国沪深A股市场2004年-2012年公司样本.结果表明:机构对其持股公司绩效的改善作用在2004年-2007年和2008年-2012年两个阶段存在结构性变动;从整体来看, 在上述两个阶段, 机构投资者对其持股公司绩效有显著改善作用, 但第二阶段的改善作用明显减弱;基金有助于改善其持股公司绩效, 而其它机构投资者缺乏这种改善作用.机构在第二阶段改善作用减弱的主要原因是,在样本期间, 基金持股规模占比迅速衰减, 其它机构投资者持股规模占比大幅提高抑制了整个机构对其持股公司绩效的改善作用.     

Explaining Diversities in Age-Specific Life Expectancies and Values of Life Saving: A Numerical Analysis

To what extent can life protection account for observed diversities in age-specific life expectancies across individuals and over time? We provide answers via calibrated simulations of a life-cycle model where life’s end is stochastic, and age-specific mortality hazards are endogenous outcomes of life protection, set jointly with life insurance and annuities. Our model links mortality hazards and values of life saving (VLS) as “dual variables”, and offers new insights about the measurement of VLS. Life protection is estimated to account for non-trivial portions of observed levels and inequalities in life expectancies and empirical estimates of VLS by age and education, and over time.     

传播文化机制及其规则

传播文化是人与人、群体与群体之间的社会文化信息交流与互动过程。在这一过程中,文化对传播的影响重大,它既来自传播者的文化势能,也来自受传者的文化环境,同时渗透到传播媒介及其过程之中。相对稳定的文化结构模式与文化的选择、自我保护功能即维模功能相联系。文化适应与文化竞争是影响传播文化的重要机制之一。而传播文化从属于一定的构造和规则,其除了明示性和暗示性规则外,还有精致性和限定性规则。     

Comparative Mixed Risk Aversion: Definition and Application to Self-Protection and Willingness to Pay

We analyze the optimal choices of agents with utility functions whose derivatives alternate in sign, an important class that includes most of the functions commonly used in economics and finance (Mixed Risk Aversion, MRA, Caballé and Pomansky, 1996). We propose a comparative mixed risk aversion definition for this class of utility functions, namely, More Risk Averse MRA, and provide a sufficient condition to compare individuals. We apply the model to optimal prevention and willingness to pay. More risk averse MRA agents spend less to reduce accident probabilities that are above 1/2. They spend more only when accident probabilities are below 1/2. Explanations in terms of risk premiums are provided. The results presented also allow for the presence of background risk.