单面与双面信息广告重复效应的实证研究

通过引入企业道德感知变量,并在整合最优唤醒理论、加工流畅模型、归因理论和两因素理论的基础上,深入剖析了单、双面信息广告重复效应的差异。研究结果表明:双面信息广告比单面信息广告加工更困难,但消费者对其广告正确回忆率更高,广告反应也更积极。单面信息广告的重复效应呈现先增后减的倒U趋势,而双面信息广告的重复效应呈单调递增趋势,疲劳效应延迟出现。消费者对企业道德感知的差异在很大程度上决定了单、双面信息广告重复效应的差异。     

大地上的疤痕

村子西边,原来没有任何建筑.十几年前的一个晚春,也许是晚春过后的初夏,台子地靠近村子的这一侧,一座高高的砖窑拔地而起,横空出世.一时间,祖祖辈辈以耕为生、以农为本的生活常态,遭遇到了一波前所未有的冲击,不啻一场地震降临.     

Experiences of Families Inquiring About Donating or Adopting Embryos: Results of an Online Survey

Four hundred thirty-four individuals who had previously inquired with the National Embryo Donation Center (NEDC) or Nightlight Christian Adoptions about donating or adopting embryos responded to an online survey regarding which issues had been raised with them during their inquiry and how well they perceived NEDC and/or Nightlight had answered their questions regarding those issues. In general, respondents perceived that the operational issues surrounding donating or adopting embryos received more attention than the longer-term issues involving family dynamics and relationships. Overall, the inquirers were pleased with the responses to their questions (average >8 on a satisfaction scale of 1–10).     

母子公司管理控制方式及其影响因素的实证研究

本研究目的是探索母子公司管理控制方式的构成类型及其影响因素.通过开发并检验“母子公司管理控制方式量表”,得出母子公司管理控制方式包括目标管控、活动管控、结果管控和文化管控等方面.研究表明,总部价值创造能力是影响母子公司管理控制方式的最重要因素,其次是子公司创业精神和子公司相关性.环境不确定性对母子公司管理控制方式没有显著影响,但对目标管控维度有显著影响.本研究为母子公司管理控制方式的设计和调适提供了新的理论依据.     

A tutorial on rank-based coefficient estimation for censored data in small- and large-scale problems

The analysis of survival endpoints subject to right-censoring is an important research area in statistics, particularly among econometricians and biostatisticians. The two most popular semiparametric models are the proportional hazards model and the accelerated failure time (AFT) model. Rank-based estimation in the AFT model is computationally challenging due to optimization of a non-smooth loss function. Previous work has shown that rank-based estimators may be written as solutions to linear programming (LP) problems. However, the size of the LP problem is O(n ²+p) subject to n ² linear constraints, where n denotes sample size and p denotes the dimension of parameters. As n and/or p increases, the feasibility of such solution in practice becomes questionable. Among data mining and statistical learning enthusiasts, there is interest in extending ordinary regression coefficient estimators for low-dimensions into high-dimensional data mining tools through regularization. Applying this recipe to rank-based coefficient estimators leads to formidable optimization problems which may be avoided through smooth approximations to non-smooth functions. We review smooth approximations and quasi-Newton methods for rank-based estimation in AFT models. The computational cost of our method is substantially smaller than the corresponding LP problem and can be applied to small- or large-scale problems similarly. The algorithm described here allows one to couple rank-based estimation for censored data with virtually any regularization and is exemplified through four case studies.     

重交通道路水泥混凝土路面与沥青路面技术经济分析

随着公路运输的发展，运输车辆超载巳成为十分普遍的现象，超载是导致沥青路面结构早期损坏的主要原因。本文通过交通量调查，实测超载车辆的轴重，并通过技术经济对比，提出严重超载的路段，修筑水泥混凝土路面结构，可有效地解决沥青路面的早期损坏。     

从法理上对税收负担最小化手段的再界定——税收筹划概念的内涵和外延

目前关于税收负担最小化手段的理解多种多样 ,对税收筹划及相关概念的使用很不规范 ,容易误导纳税人的行为和国家的税收征管。本文从法理上将税收负担最小化手段划分为偷逃骗税和税收筹划 ,又将税收筹划划分为避税、节税和税负转嫁     

人性、文化传统与道德理论的合理性——美国后分析道德理论争论述评

究竟有没有一种作为道德基础的不变的人的本性？道德理论有没有一种建立在人性基础上的惟一的客观性和合理性？我们应当如何看待和说明我们的道德理论和辩护方式的多样性和合理性？这些问题是后现代道德理论争论的焦点，是有着重大的现实理论和实践意义的课题。本文以美国后分析道德哲学的发展、争论为线索，对以上问题作了初步的历史的探讨     

我国农业税减免前后农民税负比较分析——基于一般农产品市场和农业生产资料市场

文中以我国农业税减免为背景,首先对我国一般农产品市场和农业生产资料市场进行分析;接着阐述了我国农民所承担的"名义税负"和"实际税负",并根据市场税收转嫁原理对我国农业税减免前后农民所承担的"名义税负"和"实际税负"进行比较分析;最后根据分析所得出的结论提出相关政策建议.