Estimation and Inference Procedures for Semiparametric Distribution Models with Varying Linear‐Index

More flexible semiparametric linear‐index regression models are proposed to describe the conditional distribution. Such a model formulation captures varying effects of covariates over the support of a response variable in distribution, offers an alternative perspective on dimension reduction and covers a lot of widely used parametric and semiparameteric regression models. A feasible pseudo likelihood approach, accompanied with a simple and easily implemented algorithm, is further developed for the mixed case with both varying and invariant coefficients. By justifying some theoretical properties on Banach spaces, the uniform consistency and asymptotic Gaussian process of the proposed estimator are also established in this article. In addition, under the monotonicity of distribution in linear‐index, we develop an alternative approach based on maximizing a varying accuracy measure. By virtue of the asymptotic recursion relation for the estimators, some of the achievements in this direction include showing the convergence of the iterative computation procedure and establishing the large sample properties of the resulting estimator. It is noticeable that our theoretical framework is very helpful in constructing confidence bands for the parameters of interest and tests for the hypotheses of various qualitative structures in distribution. Generally, the developed estimation and inference procedures perform quite satisfactorily in the conducted simulations and are demonstrated to be useful in reanalysing data from the Boston house price study and the World Values Survey.     

消费型社会:历史逻辑与现实价值

“消费型社会”是以消费为主导的社会,消费在整个社会制度安排中处于优先地位.西方社会发展的历史表明,从生产型社会向消费型社会转型是由生产与消费之间的矛盾运动规律所决定的,也是工业社会向后工业社会转型的内在要求.当前中国诸多经济社会问题,缘于我们长期处在生产型社会阶段,是由生产型社会本身具有的结构性矛盾所致,而破解这些难题的根本出路在于尽快实现从生产型社会向消费型社会的转型,这不仅是当前中国转变经济发展方式的迫切要求,也是改善和保障民生、构建社会和谐的必然要求.     

范畴误用与幽默的产生

本文主要运用了认知语言学中的范畴理论来分析部分幽默,证明了范畴的误用是触发幽默的一个重要来源。通过对范畴理论的综述和分析,证明范畴理论可以有效的解释一些幽默现象,为范畴理论的应用打开新的视角,同时也为幽默的研究起到了一定的推动作用。     

Measuring Mutual Help Willingness and Criteria among Hong Kong People: Confirmatory Factor Analyses

Mutual help has been often found to be beneficial for people’s well-being in clinical settings. Research in the general population, however, is relatively limited, partly due to the lack of applicable measurement tools. The present study attempted to develop two scales to measure mutual help willingness and criteria and test their psychometric properties among a community sample of Hong Kong people (n = 951). Confirmatory factor analyses suggested that the hypothetical models fitted the data very well. Results also indicated that though the willingness to seek help and to give help was significantly correlated, Hong Kong people were generally more willing to give help than to seek help. Age had a negative effect on help-seeking willingness, which can not be explained by education level. A set of criteria were applied similarly when people decided on help-giving and help-seeking. Agreement with the criteria was negatively correlated with age but the associations became negligible when education level was controlled. Research and practical implications of the findings are discussed.     

广西崇左市实施"走出去"战略研究

2003年撤地设市以来,崇左市依托自身优势,采取多种措施实施"走出去"战略,在取得喜人的成效的同时,也面临一系列问题.本文对此进行专题研究,认为:就崇左市实施"走出去"战略而言,政策是关键,利益最大化是原动力,服务业是优势.     

论建设节水防污型城市

珍惜水资源，建设节水型城市对于水资源紧缺的中国十分重要而紧迫。我国节水型城市政策法规建设取得了一定的成绩并在不断推进，但是还不够健全，需要完善。我们要加强节水立法，建立一系列节水的法律制度，让全城市珍惜水资源，早日建成节水型城市。     

What do employers think about employing people with experience of mental illness in New Zealand workplaces?

The researchers investigated employers' experiences with individuals with a mental illness and in their workplaces. Seventy-two business owners or human resource managers were interviewed. Most knew the prospective employee's health background prior to deciding to employ them. The majority of the reported experiences with employed individuals were very positive. Key strategies the employers or managers reported using to support employees were: to create trustworthy relationships, to work through issues and to seek external support.     

英语情态动词的时态表征

针对英语情态动词有无时态形式,这一语言学界存在着较大争议的问题,从形式表征和语义表征方面入手,借助语言学历时及共时的观点,提出并论证了情态动词在形与意都具有时态的特征.     

Optimal choice of sample fraction in univariate financial tail index estimation

This study introduces a technique to estimate the Pareto distribution of the stock exchange index by using the maximum-likelihood Hill estimator. Recursive procedures based on the goodness-of-fit statistics are used to determine the optimal threshold fraction of extreme values to be included in tail estimation. These procedures are applied to three indices in the Malaysian stock market which included the consideration of a drastic economic event such as the Asian financial crisis. The empirical results evidenced alternating varying behavior of heavy-tailed distributions in the regimes for both upper and lower tails.