基于神经网络的企业经济效益评价方法

企业经济效益评价在现代企业管理中具有重要地位,如何客观准确地对企业经济效益,选择正确合理的评价方法就尤为重要。文章应用神经网络模型,在“学习”以往这些样本的基础上作惯性的思维进行评价,把目前较为流行的数据挖掘中的神经网络模型应用于企业经济效益评价当中,以期取得一些有益的结果。     

The stratified win statistics (win ratio,win odds,and net benefit)

The win odds and the net benefit are related directly to each other and indirectly, through ties, to the win ratio. These three win statistics test the same null hypothesis of equal win probabilities between two groups. They provide similar p-values and powers, because the Z-values of their statistical tests are approximately equal. Thus, they can complement one another to show the strength of a treatment effect. In this article, we show that the estimated variances of the win statistics are also directly related regardless of ties or indirectly related through ties. Since its introduction in 2018, the stratified win ratio has been applied in designs and analyses of clinical trials, including Phase III and Phase IV studies. This article generalizes the stratified method to the win odds and the net benefit. As a result, the relations of the three win statistics and the approximate equivalence of their statistical tests also hold for the stratified win statistics.     

Independent child protection assessments: incorporating a therapeutic focus from an integrated service context

Assessment following serious child abuse is a significant activity for the social work, psychology and psychiatric professions. Notwithstanding the profound significance of the consequences for abused children and their families from recommendations made by such assessments, there is little research which examines the process and outcome of child protection assessments. This paper describes the professional practice principles of an independent assessment team and presents preliminary findings from a retrospective examination of 160 major independent assessments undertaken over a period of 11 years. The review suggests that nearly 60% of the families gained some therapeutic benefit from the assessment process and outlines the areas in which such benefits occurred. It is argued that structuring assessments in a way which maximizes the possibility of parents/carers effecting changes in problem areas is the essence of a constructive partnership relation with families. Copyright © 1999 John Wiley & Sons, Ltd.     

我国工业污染物的影子价格估计

 污染物的影子价格体现了污染物的边际减排成本。本文采用二次型方向性距离函数和 2003-2008年我国284个地级及以上城市工业部门数据,对废水、SO2和烟尘等三种污染物的影子价格进行了估计。结果发现,2003-2008年期间,废水、SO2、烟尘的影子价格或边际减排成本分别为0.0178万元/吨、5.158万元/吨和4.597万元/吨。SO2排污权交易价格相比污染减排成本偏低,影响了排污权交易市场的有效运作。污染物的影子价格在不同城市具有较大差异,这种差异性能够在一定程度上被污染排放规模、监管强度和污染治理的规模经济性等因素所解释。     

交通政策对主卫城间多模式交通选择行为的影响及系统效益测算

交通政策和管理措施的实施会对主卫城间多模式复合交通出行行为选择方式和系统整体效益产生影响,需要科学评估其影响程度,为城间交通模式的协调配置提供参考。在对城间交通模式及其出行行为特征进行分析的基础上,将基于随机效用理论的MNL模型和基于Logsun差异的效益测算方法相结合,针对城间4种典型的交通模式,通过构建基准情景和多种可能情景,测算了不同交通政策实施对城间交通出行选择的影响和出行者效益。结果表明,实施公交优先（减少乘客出行时间）对城间交通出行选择行为的影响较大,并具有较明显的系统经济效益,在协调城间交通模式配置时可优先考虑。     

A call for more elaborate and transparent pension data to inform policy‐making: A critical examination of World Bank data for Eastern Europe

This article offers a critical analysis of the methods by means of which data relating to the performance of second pillar pension schemes are collated, compared and reported. This is done with regard to the performance of mandatory private second pillar pension funds in Eastern Europe. By critically examining data published in a number of World Bank studies, and through the identification of data problems and irregularities, the article argues that a much more elaborate and transparent approach to the collation, comparative analysis and reporting of data is needed. Required is the establishment of a consensus regarding what should represent a robust basis for making credible policy recommendations, not least with regard to pension re‐reforms in the countries of Eastern Europe and elsewhere. In the absence of such a consensus, unresolved data problems and irregularities may potentially continue to influence the formulation of incomplete national policy conclusions regarding the performance of second pillar pension funds and, in turn, the ability of policy‐makers to evaluate appropriately the need for, and assess the feasibility of implementing in a sustainable manner, pension re‐reform.     

大学城建设的经济视角

大学城建设不仅具有迅速转移产能和技术,提高集中化和创新力的产业价值,而且给予了我们一些重要的启示。声誉转移是实现大学城效益最大化的捷径,而构筑此捷径既要用经济方式实行内部统一管理,又要用注重社会效益的方式进行宣传和实施。     

专利制度的合理选择与利益分享的法律经济学思考

一切立法和司法以及整个法律制度事实上是在发挥着分配稀缺资源的作用,因此,所有法律活动都要以资源的有效配置和利用--效率极大化为目的,所有法律活动都可以用经济的方法来分析和指导.从法律经济学的角度探讨专利制度的选择以及利益分享问题,对我国专利保护制度大有裨益.     

对重婚罪的重新解读--兼对妨害婚姻、家庭罪整体搬迁之利弊分析

从实然的角度讲,现行刑法中重婚罪的主要法益是配偶在夫妻关系中要求对方忠实于自己的权利,次要法益才是一夫一妻制。被害人承诺配偶重婚的,重婚行为不构成犯罪。前后都是事实婚姻,不构成重婚罪。重婚罪是即成犯,追诉时效从犯罪成立之日起计算。现行刑法中遗弃罪的法益是需要扶助人的受扶助的权利,对象不限于家庭成员。妨害婚姻、家庭罪整体搬迁弊多利少。