Semiparametric regression of clustered current status data

This paper discusses regression analysis of clustered current status data under semiparametric additive hazards models. In particular, we consider the situation when cluster sizes can be informative about correlated failure times from the same cluster. To address the problem, we present estimating equation-based estimation procedures and establish asymptotic properties of the resulting estimates. Finite sample performance of the proposed method is assessed through an extensive simulation study, which indicates the procedure works well. The method is applied to a motivating data set from a lung tumorigenicity study.     

大学生新党员思想教育和培养工作的现状与创新研究

针对大学生新党员教育现状和培养工作的现状与创新性研究进行了科学有效的探索实践，从多方位、多角度、多层次对大学生党建工作进行了系统研究分析，把理论教育和实践教育相结合，把新党员教育和开展活动相结合，把支部建设和创新实践相结合，使大学生新党员教育培养工作更具系统性、针对性和时代性。     

The relationship between ethnicity and fertility in New Zealand

While there is a global shift towards smaller families, some groups maintain relatively high fertility rates. The 2013 New Zealand census data were used to investigate the nature of fertility between ethnicities in New Zealand. The NZ Deprivation Index 2013 was used as a measure of socioeconomic status to determine the relationships with fertility. The results mirror research outside of New Zealand in that socioeconomic status is inversely correlated to fertility. Using crude average fertility rates, sole-ethnicity Pasifika and Māori ethnic groups still have substantially higher fertility than sole-ethnicity Europeans and Asians ethnic groups, even when simultaneously accounting for age, socioeconomic status, education, and religious affiliation. Christians have more children than individuals reportedly without any religion, and fertility rates drop on average for mothers who have higher formal qualifications. Our findings suggest that cultural, or other ethnic-specific factors differentially affect fertility for Māori, Pasifika, New Zealand European, and Asians as aggregated ethnic categories, respectively.     

江苏省居民个人收入流动性实证分析

利用1989-2009年间CHNS调查数据,对江苏省居民个人的收入流动性进行了经验分析,研究发现:(1)尽管在1997-2000年间居民个人收入流动性略有上升,但是整体上考察期内江苏省居民个人的收入流动性呈现出不断下降且趋于稳定的趋势特征;(2)中间阶层的居民较最穷和最富两个收入阶层具有更高的收入流动性;(3)农村居民个人收入流动性始终大于同时段城镇居民个人收入流动性;(4)1993年以后收入流动性不利于江苏省居民个人收入地位的改善,收入顶层居民的收入地位固定化趋势较为明显,同时江苏省尚未形成一个较为稳定的中等收入阶层.最后,本文指出江苏省应将提高居民收入流动性和培育中等收入阶层作为政策的着力点.     

命题的本格初探

命题是逻辑哲学的核心概念,许多哲学家提出了自己关于命题本格的观点。弗雷格认为命题即被构造的思想,罗素认为命题是由词项构成的统一体,维特根斯坦认为命题是可能世界的集合。辨析以上观点可以指认:命题是被构造的抽象实体,它是真值载体,独立于自然语言而存在,具有合法的本体论地位。     

Markets or networks: Households’ choice of financial intermediary in Western China

We argue that households’ choice of financial intermediary is conditioned by households’ social network structures and socioeconomic status. Analyses show that households’ social network size and network composition affect their choices by limiting the quality and quantity of information, resources, and social influence one can access through social ties. Moreover, we find that high-SES families favor formal intermediaries due not only to their richer financial knowledge, higher affordability, and greater capacity to repay loans, but also to their high demands and special types of financial needs that can hardly be satisfied by embedded resources.     

独立学院文化现状及改进对策

大学文化是大学所有成员在历史时间内创造的精神财富和物质财富的总和。而独立学院文化的现状是文化不够鲜明、完整、深厚,因此,独立学院需要从文化培育、文化落实、文化传承、文化创新等方面加以改进。     

Popularity breeds contempt: The evolution of reputational dislike relations and friendships in high school

In this study, we examined the dynamics of the perception of “dislike” ties (reputational dislike) among adolescents within the contexts of friendship, perceived popularity, substance use, and Facebook use. Survey data were collected from a longitudinal sample of 238 adolescents from the 11th and 12th grades in one California high school. We estimated stochastic actor-based network dynamic models, using reports of reputational dislike, friendships, and perceived popularity, to identify factors associated with the maintenance and generation reputational dislike ties. The results showed that high-status adolescents and more frequent Facebook users tended to become perceived as or stay disliked by their peers over time. There was a tendency for friendships to promote the creation and maintenance of reputational disliking but not vice versa. Adolescents tended to perceive others as disliked when their friends also perceived them as disliked. There was no evidence that either cigarette smoking or drinking alcohol affected reputational dislike dynamics. This study highlights the important role that the hierarchical peer system, online peer context, and friendships play in driving information diffusion of negative peer relations among adolescents.     

Family Formation and Close Social Ties Within Religious Congregations

The study of family and religion has yet to elaborate on the social ties that connect these two important and changing institutions. Specifically, how does family formation (i.e., marriage and childrearing) impact social ties to religious communities? Using longitudinal data from the Portraits of American Life Study (2006–2012) and fixed effects regression models that control for time‐stable heterogeneity (N = 1,314), this study tests the effects of marriage and childrearing on changes in close congregational social ties. Fixed effects estimates suggest that marriage actually decreases close social ties to religious congregations, whereas rearing children within marital unions increases them. Thus, it is children, not marriage per se, that actually integrates married couples into religious communities. These contrasting effects tend to be the strongest among young adults, but they weaken with age as well as marital duration.     

Experiencing discrimination in Los Angeles: Latinos at the intersection of legal status and socioeconomic status

Despite its recent slowdown, immigration from Latin America continues to be a controversial issue. Some scholars argue that the social climate is increasingly inhospitable to Latinos, potentially fueling discriminatory attitudes and behaviors. However, little research has examined Latinos' experiences with discrimination, especially variation by nativity and legal status. We address this issue with research on perceived discrimination among Mexican and Central American residents of Los Angeles County, a major destination for Latin American immigrants. Using data from the Los Angeles Family and Neighborhood Survey and the American Community Survey, the analyses consider immigrants’ legal status, intersectionality, and competing perspectives on assimilation. The results show that undocumented immigrants do not report especially high levels of discrimination. Instead, young U.S.-born Latinos are the most likely to report mistreatment in interpersonal and institutional domains. Neighborhood ethnoracial and income diversity also have implications for perceived exposure to different types of discrimination.