我国社区经济发展的现状及目标选择

社区经济作为依托于社区的一种经济形态,是社区发展的经济基础,不但有一般经济形态的属性,还具有追求社区福利最大化的社会属性。因此,社区经济发展要以居民福利和部分服务效用最大化为目标,资源要通过社会机制为主的多元化机制进行配置,应鼓励服务型、引进合作型、壮大外向型以及发展特色型,以满足社区居民不断增长的物质文化需求。     

社会转型期利益矛盾与构建和谐社会的路径选择

建构社会主义和谐社会是加强党的执政能力建设的重要内容,和谐社会是一个社会结构合理、价值共识达成、制度安排科学的社会;社会转型随着改革的深化,利益分化明显,利益矛盾突出,为了构建社会主义和谐社会必须合理调整社会结构,协调好各种利益关系,大力推进制度创新,加强执政党执政能力建设,统筹人与自然的和谐发展。     

作为解释框架的新闻传播四维结构

本文以美国学者怀特的“新闻选择的把关模式”为基础 ,但却不以传播者的把关为关注中心 ,而是根据新闻传播过程的现实 ,同时考量四个维度 :信息强度、传播者视野度、受众关注度与现实真性度 ,从而将新闻传播置于一个动态的过程中 ,在矛盾运动中来为新闻传播提供一个合乎实际的解释。新闻传播的四维结构在修正怀特模式的基础上 ,意在作为解释框架     

中小企业信用担保中逆向选择问题的数理分析

人们往往认为加强对企业的调查能够减少中小企业信用担保中的逆向选择.事实果真如此吗?通过建模分析的方式可以得出如下结论:只有当企业提供的抵押品的价值大于项目期望收入与担保费之差时,担保机构加强对企业的调查能减少逆向选择;当企业不提供抵押品或者提供的抵押品的价值小于项目期望收入与担保费之差时,加强对企业的调查反而会加剧逆向选择.     

A stopping rule for structure-preserving variable selection

A stopping rule is provided for the backward elimination process suggested by Krzanowski (1987a) for selecting variables to preserve data structure. The stopping rule is based on perturbation theory for Procrustes statistics, and a small simulation study verifies its suitability. Some illustrative examples are also provided and discussed.     

Union Formation and Depression: Selection and Relationship Effects

Many studies have established that married people fare better than their never‐married counterparts in terms of psychological well‐being. It is still unclear, however, whether this advantage is due primarily to beneficial effects of marriage or to the selection of psychologically healthier individuals into marriage. This study employs data on young adults from both waves of the National Survey of Families and Households to test hypotheses based on both selection (N= 878) and relationship (N= 722) effects. Further, we differentiate union formation into cohabitation and marriage with and without prior cohabitation. Results indicate no evidence of selection of less depressed persons into either marriage or cohabitation, but a negative effect of entry into marriage on depression, particularly when marriage was not preceded by cohabitation.     

信息不对称与我国商业银行经营管理

信息不对称是导致金融运行效率低下的重要原因。通过对产权制度、组织结构和经营管理体制的分析，发现我国商业银行经营管理中存在着严重的信息不对称。为此，商业银行应从再造信息载体、理顺信息通道、建立信息控制系统和完善信息表现形式四个方面来解决信息不对称现象。     

Perpetrator or Victim? Relationships Between Intimate Partner Violence and Well‐Being

In national surveys, around half of intimate partner violence perpetrators are also victims of partner assaults. However, data on intimate partner violence victimization and perpetration are rarely examined together. This study examines the relationships between perpetration, victimization, and three psychosocial variables—depression, self‐esteem, and substance abuse—that have been constructed in prior research as both causes and consequences of partner violence. Results indicate that associations between substance abuse and self‐esteem and partner violence perpetration are mediated by controlling for victimization, but depression is associated with both victimization and perpetration. Associations between mutual violence and depression and substance abuse are greater among women than men, supporting the position that gender symmetry in reported violence perpetration does not imply symmetry in outcomes.     

Local Linear Additive Quantile Regression

Abstract.  We consider non-parametric additive quantile regression estimation by kernel-weighted local linear fitting. The estimator is based on localizing the characterization of quantile regression as the minimizer of the appropriate 'check function'. A backfitting algorithm and a heuristic rule for selecting the smoothing parameter are explored. We also study the estimation of average-derivative quantile regression under the additive model. The techniques are illustrated by a simulated example and a real data set.     

解读广播媒介角色定位

如何科学地把握广播的媒介定位,如何开拓适合广播媒介定位的生存空间是广播媒介发展的关键.本文把广播放到人类社会的宏观环境中,从人类媒介发展、广播媒介自身发展、符号三个角度论证了广播媒介由中心走向边缘的角色演变过程及其在未来的媒介格局中必然处于边缘的角色定位.但只要广播发挥自己的媒介优势,积极寻求适合广播角色定位的生存空间,广播媒介也是大有可为的,可以成为社区的信息中心、贴身的电子秘书、受众的娱乐伙伴.