农村社会养老保险制度要创新

搞好农村社会养老保险工作,实现农村社会和谐化,是完善社会保障体系、全面建设社会主义新农村的重要内容,也是应对人口老龄化的一个紧迫任务。我国80%的人口居住在农村,要实现十六届六中全会提出的到2020年构建社会主义和谐社会的任务目标,必须下大力气抓好农民的养老问题。农村社会养老保险工作,应以提高农民生活质量、建设社会主义新农村和构建农村社会和谐化为重点,尽快建立与经济社会发展和农民生活水平相适应的新型农村社会养老保险制度。当前,应根据经济社会发展和农民年老后基本生活需要,通过“跳跃式”的方式加快政策制定步伐,应对…     

Optimal asset allocation for participating contracts with mortality risk under minimum guarantee

Abstract

We investigate an optimal investment problem of participating insurance contracts with mortality risk under minimum guarantee. The insurer aims to maximize the expected utility of the terminal payoff. Due to its piecewise payoff structure, this optimization problem is a non-concave utility maximization problem. We adopt a concavification technique and a Lagrange dual method to solve the problem and derive the representations of the optimal wealth process and trading strategies. We also carry out some numerical analysis to show how the portfolio insurance constraint impacts the optimal terminal wealth.     

Simultaneous sparse model selection and coefficient estimation for heavy-tailed autoregressive processes

We propose a sparse coefficient estimation and automated model selection procedure for autoregressive processes with heavy-tailed innovations based on penalized conditional maximum likelihood. Under mild moment conditions on the innovation processes, the penalized conditional maximum likelihood estimator satisfies a strong consistency, O_P(N^?1/2) consistency, and the oracle properties, where N is the sample size. We have the freedom in choosing penalty functions based on the weak conditions on them. Two penalty functions, least absolute shrinkage and selection operator and smoothly clipped average deviation, are compared. The proposed method provides a distribution-based penalized inference to AR models, which is especially useful when the other estimation methods fail or under perform for AR processes with heavy-tailed innovations [Feigin, Resnick. Pitfalls of fitting autoregressive models for heavy-tailed time series. Extremes. 1999;1:391–422]. A simulation study confirms our theoretical results. At the end, we apply our method to a historical price data of the US Industrial Production Index for consumer goods, and obtain very promising results.     

近代广东学术因缘——栏目解说

一地的学术传承及学风流变,自有其渊源因由.近代中国的社会变迁虽然天翻地覆,脱胎换骨,学术思想也随着各种东西学新知的大量输入而旧貌换新颜,内里仍然深受固有理路脉络的影响制约.就全国范围而言,历史上广东学术大都处于旁支地位.     

近代"中国哲学"发源

用解一字即作一部文化史的观念检计,"哲学"不仅是"phnosophy"的译名,其发明者西周以之为东洋学问的对应物.而将"哲学"与东洋连接在一起,始作俑者是东京大学,起重要作用的则是加藤弘之和井上哲次郎.后者在前者授意下撰写的<东洋哲学史>,用西洋philosophy系统条理中国古代思想,将"哲学"由他者的学问即西学,变成东洋精神世界的重要组成部分,演变为普遍性的学问.这与此前中村正直、岛田重礼主讲"支那哲学"仍旧依照中国脉络截然不同,背后实有掌控东亚话语权的立意.中国新进人士如王国维等接受哲学,已经将普遍性作为不言而喻的前提.这样的比附后来演变为用西洋系统条理中国思想的天经地义,也引起有识之士的反省.不过,"东洋哲学"与"支那哲学"给东亚尤其是中国提供了重估固有文化的机缘.就此而论,"中国哲学"包括:第一,用哲学概念重装古代思想(一般所谓中国哲学史);第二,"哲学"和"中国哲学"的发生及其来华后的发展演化;第三,借鉴philosophy以丰富和发展中国的思维.寻求"哲学"在中国的历史脉络,应该严格分别一二两项.至于前景如何,后一方面的成效至关重要.     

Random Weighting Estimation for Quantile Processes and Negatively Associated Samples

This article presents new theories of random weighting estimation for quantile processes and negatively associated samples. Under the condition that X ₁, X ₂,…, X _n are independent random variables with a common distribution, the consistency for random weighting estimation of quantile processes is rigorously proved. When X ₁, X ₂,…, X _n are not independent of each other, random weighting estimation of sample mean is established for negatively associated samples.     

Pathways to happiness: From personality to social networks and perceived support

The present study attempts to incorporate individual personality into a social network account of subjective wellbeing (SWB) by proposing and testing a path model in which social relationships (egocentric social networks and perceived social support, PSS) mediate the relationship between personality and SWB. We found that network characteristics (including network size, emotional closeness, and proportion of new contacts) are related to SWB largely via the mediation of PSS. Additionally, network size and proportion of new contacts function as important mediating mechanisms linking extraversion, agreeableness and openness to PSS and SWB.     

Exploring Definitions of Financial Abuse in Elderly Korean Immigrants: The Contribution of Traditional Cultural Values

The purpose of this study is to explore the cultural definitions of financial abuse from the perspective of 124 elderly Korean immigrants and to examine the role of traditional cultural values in their definitions by using a mixed methods approach. The qualitative analysis generated four themes relevant to definition of financial abuse. A binary logistic regression indicated that those with stronger cultural adherence to traditional values had higher odds of providing culture-based definitions of financial abuse. Education is needed for health professionals, social service providers, and adult protective workers to increase their understanding of culture-specific experiences of financial abuse among ethnic minority elders.