关于养老“时间储蓄”的问题与思考

近年来养老“时间储蓄”成为人们关注的热点问题。通过调查和访谈 ,本文分析了“时间储蓄”的内涵 ,指出了目前存在的问题 ,并从经济学和社会学两种视角审视“时间储蓄”的社会效用 ,说明“时间储蓄”面临的困难和对文化制度建设的意义 ,结论认为“时间储蓄”的可行性和应用性还有待于进一步的思考和论证 ,需要在正确的认识指导下确定详细的实施方案并在一定区域内试点 ,进一步总结经验 ,证明其自身的价值     

全国流动人口计划生育管理研究

本文根据全国及部分地方有关流动人口计划生育的调查和相关的现有资料 ,分析了中国流动人口的规模、影响人口流动的因素、流动人口的特点和计划生育工作存在的问题 ,并提出了今后加强流动人口计划生育工作的对策和建议。     

我国现阶段社会养老保险的发展状况和问题及政策分析

社会养老保险制度是解决老年人经济保障的主要途径,但目前我国的社会养老保险制度还处于起步或初期发展的阶段,存在大量的现实问题。本文论述了我国社会养老保险发展的基本状况、我国老年人经济保障的基本状况、我国社会养老保险面临的主要问题,并提出建立和完善我国社会养老保险体系的对策思考。     

草根民主:内涵、限度与提升——村民自治的政治学思考

发韧于中国乡土社会的村民自治,由于固有的乡土气息及其内在的民主选举因素,被学人们称为草根民主.本文主要从内涵、限度和提升三个方面对草根民主进行历史回顾和理性分析,在此基础上进一步展望草根民主的未来发展前景.     

The influence of acculturation level and family relationships on quality of life among U.S. Chinese older adults

ABSTRACT

The present study examined the influence of acculturation level and family relationships (i.e., positive family support and negative family strain) on quality of life (QOL), using the data from the Population Study of ChINese Elderly (PINE) in Chicago (N = 3159). Controlling for sociodemographic variables and health status, it was found that individuals’ acculturation level and positive family support were positively related to QOL, whereas negative family strain was negatively associated with QOL. More importantly, higher acculturation levels were associated with increased protective effects of positive family support and reduced risk effects of negative family strain on QOL among U.S. Chinese older adults.     

On extreme order statistics from heterogeneous beta distributions with applications

This paper treats the problem of stochastic comparisons for the extreme order statistics arising from heterogeneous beta distributions. Some sufficient conditions involved in majorization-type partial orders are provided for comparing the extreme order statistics in the sense of various magnitude orderings including the likelihood ratio order, the reversed hazard rate order, the usual stochastic order, and the usual multivariate stochastic order. The results established here strengthen and extend those including Kochar and Xu (2007 Kochar, S.C., Xu, M. (2007). Stochastic comparisons of parallel systems when components have proportional hazard rates. Probab. Eng. Inf. Sci. 21:597–609.[Crossref], [Web of Science ®] , [Google Scholar]), Mao and Hu (2010 Mao, T., Hu, T. (2010). Equivalent characterizations on orderings of order statistics and sample ranges. Probab. Eng. Inf. Sci. 24:245–262.[Crossref], [Web of Science ®] , [Google Scholar]), Balakrishnan et al. (2014 Balakrishnan, N., Barmalzan, G., Haidari, A. (2014). On usual multivariate stochastic ordering of order statistics from heterogeneous beta variables. J. Multivariate Anal. 127:147–150.[Crossref], [Web of Science ®] , [Google Scholar]), and Torrado (2015 Torrado, N. (2015). On magnitude orderings between smallest order statistics from heterogeneous beta distributions. J. Math. Anal. Appl. 426:824–838.[Crossref], [Web of Science ®] , [Google Scholar]). A real application in system assembly and some numerical examples are also presented to illustrate the theoretical results.     

Improved estimation methods for unrelated question randomized response techniques

The randomized response technique (RRT) is an important tool, commonly used to avoid biased answers in survey on sensitive issues by preserving the respondents’ privacy. In this paper, we introduce a data collection method for survey on sensitive issues combining both the unrelated-question RRT and the direct question design. The direct questioning method is utilized to obtain responses to a non sensitive question that is related to the innocuous question from the unrelated-question RRT. These responses serve as additional information that can be used to improve the estimation of the prevalence of the sensitive behavior. Furthermore, we propose two new methods for the estimation of the proportion of respondents possessing the sensitive attribute under a missing data setup. More specifically, we develop the weighted estimator and the weighted conditional likelihood estimator. The performances of our estimators are studied numerically and compared with that of an existing one. Both proposed estimators are more efficient than the Greenberg's estimator. We illustrate our methods using real data from a survey study on illegal use of cable TV service in Taiwan.     

基于DPN模型的我国出口拉动增加值时滞模型

由于我国加工出口占比较高,学者们提出了区分贸易方式的非竞争型投入产出模型.该模型可以更加准确地测算我国出口对增加值的拉动,但是该模型忽略了出口对增加值拉动的时滞性,这容易产生所有效应都在当年发生的误解.文章基于区分贸易方式的非竞争型投入产出模型构建了各部门出口对增加值拉动的时滞模型.实证结果表明:非加工出口部门的时滞长于加工出口部门的时滞.     

“农转非”、人力资本回报与收入不平等——基于分位数回归分解的方法

随着中国城镇化进程的推进,越来越多的农村户籍人口实现了身份转换,成为制度认可的新市民。本文利用中国综合社会调查（CGSS）数据发现,即使户口状况相同,"新市民"与"老市民"之间依然存在一定的收入差距。分位数回归及其分解的结果显示,"农转非"人群在劳动力市场上仍受到制度性或非制度性歧视,且歧视程度随着分位数的变化呈现倒U型趋势。同时,"农转非"人群内部也存在较大的差异,歧视降低了自致型"农转非"人群相较于城市原居民的禀赋优势,而外致型"农转非"人群则面临人力资本劣势与就业市场歧视的双重压力。