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。     

“李宇春现象”的后现代解读

“超级女声”这场造星运动无疑是2005年夏天最热的话题之一,而李宇春则是这场运动中最耀眼的明星。文章尝试从后现代主义视角切入,利用酷儿理论深入解读这个普通的女孩引发的一系列文化现象。     

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.     

网络文学刍议

网络文学与常规文学的不同之处在于创作的非法则性和作者的平民身份。目前的网络文学面临的问题有：写作心态和写作立场问题，“超文本性”真正实现的问题，以及如何避免被常规文学同化的问题。     

A generalized predictive criterion for model selection

Given a random sample from some unknown model belonging to a finite class of parametric models, assume that the estimate of the density of a future observation is of interest San Martini & Spezzaferri (1984) proposed for this problem a predictive criterion based on the logarithmic utility function. The present authors investigate a generalization of this criterion that uses as a loss function an element of the class of α‐divergences discussed by Ali & Silvey (1966) and Csiszár (1967). They also discuss briefly the case in which the class of models considered is not exhaustive.     

作业成本法下的成本动因选择研究

Homburg教授提出了作业成本法下成本动因的最优化选择模型，但是并没有对该模型要依赖的成本动因集合进行相关性分析。不能保证所选择成本动因的相关性和独立性。本文在Homburg教授的模型基础上，运用偏相关性分析和假设检验，保证了所选择成本动因的相关性和独立性，从而避免了Homburg教授的模型可能得出的不合理结果。