A note on stable limit theory for the OLSE with non usual rates and the heteroskedasticity robust Wald test

We are occupied with an example concerning the limit theory of the ordinary least squares estimator (OLSE) when the innovation process of the regression has the form of a martingale transform the iid part of which lies in the domain of attraction of an α-stable distribution, the scaling sequence has a potentially diverging truncated α-moment, and the regressor process has a potentially divergent truncated second moment. We obtain matrix rates that reflect the stability parameter as well as the slow variations present in the aforementioned sequences, and stable limits. We also derive asymptotic exactness, consistency, and local asymptotic unbiasedness under appropriate local alternatives for a heteroskedasticity robust Wald test based on subsampling. The results could be useful for inference on the factor loadings in an instance of the APT model.     

基于一致性的动态组合评价方法研究

为了解决多种动态评价方法和动态组合评价方法评价结论非一致性问题,提出基于一致性的动态组合评价方法。确定相容动态评价方法集,应用几种动态组合评价方法对相容动态评价方法集中的单一动态评价结论进行组合评价,如果评价结论非一致,再利用这几种动态组合评价方法对动态组合评价结论进行组合或再组合,直到得到一致性的动态组合排序值为止。应用基于一致性的动态组合评价方法对东部地区区域自主创新能力进行动态组合评价,得到一致性的评价结论,通过实例说明本研究实际应用上的有效性。基于一致性的动态组合评价方法对解决多种动态评价方法评价结论非一致性问题提供了思路,是综合评价方法研究的有益补充,可以利用该方法进行应用研究。     

Regularized Posteriors in Linear Ill‐Posed Inverse Problems

Abstract. We study the Bayesian solution of a linear inverse problem in a separable Hilbert space setting with Gaussian prior and noise distribution. Our contribution is to propose a new Bayes estimator which is a linear and continuous estimator on the whole space and is stronger than the mean of the exact Gaussian posterior distribution which is only defined as a measurable linear transformation. Our estimator is the mean of a slightly modified posterior distribution called regularized posterior distribution. Frequentist consistency of our estimator and of the regularized posterior distribution is proved. A Monte Carlo study and an application to real data confirm good small‐sample properties of our procedure.     

无领导小组讨论的评分者效应分析

以大学生为研究对象,实施无领导小组讨论测评,探讨培训组与非培训组评分者的信效度差异。通过相关分析、验证性因素分析等方法检验评分者的内部一致性、评分者间信度、组间与组内差异、结构效度及效标关联效度。结果显示,培训效应对评分者影响显著,经培训与未经培训的评分者组间差异显著,培训组评分结果的效标关联效度优于非培训组。对评分者进行系统的培训能有效促进客观公正地实施测评,提高测评结果准确性。     

Stability and Preference Alignment in Matching and Coalition Formation

We study matching and coalition formation environments allowing complementarities and peer effects. Agents have preferences over coalitions, and these preferences vary with an underlying, and commonly known, state of nature. Assuming that there is substantial variability of preferences across states of nature, we show that there exists a core stable coalition structure in every state if and only if agents' preferences are pairwise‐aligned in every state. This implies that there is a stable coalition structure if agents' preferences are generated by Nash bargaining over coalitional outputs. We further show that all stability‐inducing rules for sharing outputs can be represented by a profile of agents' bargaining functions and that agents match assortatively with respect to these bargaining functions. This framework allows us to show how complementarities and peer effects overturn well known comparative statics of many‐to‐one matching.     

Multiple-Stage Decision-Making: The Effect of Planning Horizon Length on Dynamic Consistency

Many decisions involve multiple stages of choices and events, and these decisions can be represented graphically as decision trees. Optimal decision strategies for decision trees are commonly determined by a backward induction analysis that demands adherence to three fundamental consistency principles: dynamic, consequential, and strategic. Previous research (Busemeyer et al. 2000, J. Exp. Psychol. Gen. 129, 530) found that decision-makers tend to exhibit violations of dynamic and strategic consistency at rates significantly higher than choice inconsistency across various levels of potential reward. The current research extends these findings under new conditions; specifically, it explores the extent to which these principles are violated as a function of the planning horizon length of the decision tree. Results from two experiments suggest that dynamic inconsistency increases as tree length increases; these results are explained within a dynamic approach–avoidance framework. This revised version was published online in June 2006 with corrections to the Cover Date.     

诚信本质的六个层面

诚信在本质上就是一个人或组织的心意、言语、行动三者各自的真实性和一贯性及彼此之间的一致性。它主要显现为心意的真实性和一贯性、言语的真实性和一贯性、行动的真实性和一贯性、言语与心意的一致性、行动与心意的一致性、行动与言语的一致性。这六个方面处于不同的层次,其中心意的真实性和一贯性处于最深层,行动与言语的一致性处于最表层,其他方面居间。     

高校校内信息资源共建共享的统一性

在信息资源共建共事的过程中,坚持统一性原则就意味着同一所高校范围内学校图书馆和各二级院系资料室．从宏观层面上看。在政策的制定与实施、标准的确立与执行、目标的设置与实现等方面都要具有高度的一致性,这样才能够顺利实现高校校内信息资源的共建共享。     

基于说服模型的高校思想政治理论课教学研究

基于社会心理学说服模型的高校思想政治理论教学在我国尚缺乏系统、深入的研究。目前,对其研究更多倾向于以信息为中心和以人为中心的说服模型教学研究,而注重过程的说服模型的教学应用研究则较为薄弱,且研究成果甚少。在以过程为中心的说服模型基础上,探索高校思想政治理论课教学的内在说服过程,提出要注重外部因素的变量、说服对象的内部特征、说服过程的一致性机制、说服结果的一致性改变或不一致性改变,并由此得出对高校思政课教学的重要启示。     

大学生自我价值感与自我和谐的相关研究

为了探讨在中国文化背景下大学生自我价值感与自我和谐的关系,采用"青少年自我价值感量表"和"自我和谐量表"对重庆市310名大学生进行团体测试.结果表明大学生的自我价值感诸因素得分均有显著的性别差异,女大学生得分高于男生;相关分析发现,除个别个人和社会取向特殊自我价值感领域以外,大学生的自我价值感同自我与经验的不和谐及自我刻板性呈极其显著的负相关,同自我灵活性呈极其显著的正相关;高、低自我价值感的大学生在自我和谐诸因子上的得分有极其显著的差异.