Kernel Estimation of Rate Function for Recurrent Event Data

Abstract.  Recurrent event data are largely characterized by the rate function but smoothing techniques for estimating the rate function have never been rigorously developed or studied in statistical literature. This paper considers the moment and least squares methods for estimating the rate function from recurrent event data. With an independent censoring assumption on the recurrent event process, we study statistical properties of the proposed estimators and propose bootstrap procedures for the bandwidth selection and for the approximation of confidence intervals in the estimation of the occurrence rate function. It is identified that the moment method without resmoothing via a smaller bandwidth will produce a curve with nicks occurring at the censoring times, whereas there is no such problem with the least squares method. Furthermore, the asymptotic variance of the least squares estimator is shown to be smaller under regularity conditions. However, in the implementation of the bootstrap procedures, the moment method is computationally more efficient than the least squares method because the former approach uses condensed bootstrap data. The performance of the proposed procedures is studied through Monte Carlo simulations and an epidemiological example on intravenous drug users.     

英国的刑事上诉制度研究

英国对刑事案件基本上实行两级上诉制度 :对于刑事法院的一审裁判可以依次向上诉法院和上议院上诉 ;对治安法院的裁判 ,可以分别向刑事法院或者高等法院以及上议院上诉 ,但是 ,二者的程序规则不完全相同。2 0世纪 70年代以来 ,英国上诉制度逐渐向大陆法系靠拢 ,最近英国政府再次提议进一步扩大控诉方的上诉权 ,英国上诉制度可能将发生重大变化。     

农村宅基地使用权流转之法律研究

土地权利和利益的合理配置是实现社会公正的一个重要方面。农村宅基地使用权流转在我国目前法律框架下是不受肯定的，但是事实上存在的地下流转市场呈失控状态。出于土地资源的充分利用和农民合法利益的保护，流转是十分必要的。因此，立法宜“改堵为疏”。应通过实践、配套政策、立法来完善这项制度，使之更符合我国市场经济的需要，以维护农民的利益。     

会计信息可靠性与相关性的产权博弈分析

从产权经济学角度对会计信息的产权属性进行分析,把会计信息的产权主体定位为所有的信息使用者,认为会计信息的产权主体与会计信息质量特征之间存在密切关系。不同产权主体之间为有利于自身的信息进行博弈,可靠性和相关性孰轻孰重取决于各方在博弈中的力量对比。最后,文章提出重构会计信息市场、实现可靠性和相关性协调发展的若干对策。     

A note on interval‐censored lifetime data and the constant‐sum condition of oiler,gómez & calle (2004)

Oiler, Gomez & Calle (2004) give a constant sum condition for processes that generate interval‐censored lifetime data. They show that in models satisfying this condition, it is possible to estimate non‐parametrically the lifetime distribution based on a well‐known simplified likelihood. The author shows that this constant‐sum condition is equivalent to the existence of an observation process that is independent of lifetimes and which gives the same probability distribution for the observed data as the underlying true process.     

房地产抵押制度研究

房地产抵押，是当前我国房地产市场的一个热点。本文试图揭示房地产抵押的主体、客体、特征、方式，以及估价、清偿、再抵押等诸多的法律问题，从不同的角度进行了理论探索，并对如何进一步完善房地产抵押制度提出立法的思考。     

论犯罪构成的诉讼机能

犯罪构成的阶层性或平面性。不能决定“法庭话语权的平衡”和刑法的人权保障机能。犯罪构成模式能够设置一定的诉讼规则，体现一定的诉讼职能和目标。大陆法系阶层递进式犯罪构成模式，设置的是普通法系的可废除诉讼规则。由于缺乏程序要件的保障，虽然有利于提高司法效率。却有损司法公平，不利于人权保障，不值得借鉴。     

Asthma Patients' Activities and Air Pollution: A Semiparametric Censored Regression Analysis

Asthma patients' health status may be especially sensitive to some types of air pollution, but the evidence on this is mixed. We explore the effects of ground-level ozone on asthma patient's activities, breaking apart the usual aggregated category of leisure into indoor and outdoor activities, and differentiating those by whether the activities were active or inactive. Applying the semiparametric censored estimation method we demonstrate that even though the period over which activities were observed was relatively low in ozone levels, there is a significant impact of ozone on a few activities. The (non-ozone) economic and demographic variables in the model play significant roles in explaining the allocation of time among seven activities, suggesting the suitability of the approach for other household decision-making contexts.     

“台湾老兵”的婚姻状况调查及原因分析——以浙江籍“台湾老兵”为个案

“台湾老兵”问题是历史留存于海峡两岸的中国社会的特殊问题，而婚姻问题又是“台湾老兵”中最突出的问题。文章以浙江籍“台湾老兵”为个案，调查了他们去台湾前后的婚姻状况，并分析了造成大多数“台湾老兵”在台湾孤单度过大半辈子、甚至一辈子的原因。     

A Non-parametric Frailty Model for Temporally Clustered Multivariate Failure Times

Abstract A model is introduced here for multivariate failure time data arising from heterogenous populations. In particular, we consider a situation in which the failure times of individual subjects are often temporally clustered, so that many failures occur during a relatively short age interval. The clustering is modelled by assuming that the subjects can be divided into ‘internally homogenous’ latent classes, each such class being then described by a time‐dependent frailty profile function. As an example, we reanalysed the dental caries data presented earlier in Härkänen et al. [Scand. J. Statist. 27 (2000) 577], as it turned out that our earlier model could not adequately describe the observed clustering.