新股发行效率、价格异象及相关理论阐释

由于新股发行价格的绝对值往往难以准确估算,所以,一、二级市场之间价格差的相对值即抑价率成为衡量新股发行效率的重要指标.我们认为,信息与理性因素是影响股票市场效率的两大类主要因素.基于信息和理性两条主线,我们可以把对新股发行价格异象的理论解释分为两大类.这些理论从不同侧面分析了发行价格的形成并解释了抑价产生的原因.不同的理论适用于某些特定状况下的新股发行.对于中国的股票发行市场,信息不对称与非理性现象共存.     

正视基本国情 重视老年体育

21世纪,人口老龄化将成为中国的基本国情,这不仅会影响到目前还健在的每一位中国人,而且会影响到目前尚未出生的若干代中国人。针对老年体育存在的诸多难题,应加强老年体育工作的研究,狠抓老年体育,以体现体育在人的生命过程中的作用和价值,使老年人健康长寿,提高生活质量。     

中国文艺思想的"梦思维"——古典文论阅读札记

梦,作为人类的一种特殊类精神现象,一直受到人们的重视,特别是弗洛伊德梦的解析理论出现后,"梦意识"在现代思想领域引起了巨大反响,推动了西方现代文艺美学的发生和发展.正是在这种背景下,唤醒了我们对于中国古代"梦思维"的兴趣和关注.所谓中国的"梦思维",既是对中国传统文献、特别是文论中一系列有关梦的认识与理论观念的辨析,也是打通中国文论与西方文论在有关梦意识方面隔膜的一种努力,试图在不同文化理论之间搭起一座桥梁.     

论研究生培养中的科技伦理教育

随着高科技的迅猛发展,科技伦理问题日益突出。我国高等院校中的科技伦理教育,尤其是培养高层次科技人才的研究生科技伦理教育还存在许多问题。本文借鉴西方发达国家研究生科技伦理教育的经验,探讨我国研究生科技伦理教育的理论与实践,对于发展我国研究生教育具有重要意义。     

Variations in Citizenship Profiling by Generational Status: Individual and Neighborhood Characteristics of Latina/os Questioned by Law Enforcement About Their Legal Status

Although racial profiling is widely studied, the related issue of citizenship profiling by law enforcement has received little scholarly attention. In this study we begin to address citizenship profiling, which may be highly salient in light of the increasing policing of immigration in the United States through Secure Communities and other federal, state and local efforts to localize the enforcement of immigration laws. Using a sample of 563 Latina/o adults residing in 46 neighborhoods in El Paso County, Texas, USA, we assess the impacts of a variety of individual and neighborhood characteristics on the likelihood of being questioned about citizenship status by law enforcement. Results using hierarchical generalized linear models (HGLMs) show that, at the individual-level, first-generation Latina/o immigrants and second-Latina/os are more likely to be questioned about citizenship status than third- and later-generation Latina/os. At the neighborhood-level, living in a neighborhood with a mid-level of Latina/o immigrant characteristics increased the probability of being questioned. The implications of these findings for citizenship profiling are discussed.     

Living a Deportation Threat: Anticipatory Stressors Confronted by Undocumented Mexican Immigrant Women

Previous sociological research shows that exposure to stress varies by individuals’ social statuses and is a central mechanism in producing mental health disparities. This line of research suggests that ethnoracial groups are more exposed to racial discrimination, thus negatively impacting their mental health. There has also been a growing literature showing how legal status impacts the mental health of immigrants and their families. However, the sociology of mental health and migration literature has largely remained disparate. This paper bridges these literatures to highlight how living a deportation threat manifests itself as an anticipatory stressor that negatively impacts undocumented Mexican migrant women’s access to resources, social relationships, and social roles. Based on 30 semi-structured in-depth interviews with undocumented Mexican immigrant women from Houston, Texas, my findings reveal living a deportation threat is a perpetual anticipatory stressor that intensifies the effects of avoiding authorities, family fragmentation, and economic uncertainty. I argue this anticipatory stressor transforms into a chronic stressor that undocumented Mexican women confront daily. By situating this study within an anti-immigrant social context, it highlights the social processes and mechanisms that exacerbate the stressors undocumented Mexican immigrant women confront.     

Deconstructing Immigrant Illegality: A Mixed-Methods Investigation of Stress and Health Among Undocumented College Students

Research has established that being undocumented is a risk factor for mental and physical health conditions. Much of this work emphasizes undocumented immigrants’ chronic stress, yet key questions about pathways to health remain. The mere state of being undocumented is viewed as a general stressor, without considering actual levels of stress or identifying dimensions of documentation status that contribute to overall stress levels. Drawing on surveys and interviews with undocumented students at the University of California, we uncover the everyday manifestations of four dimensions of immigrant “illegality”: academic concerns, future concerns, financial concerns, and deportation concerns, and their association with reported stress levels and self-rated health. Survey data establish undocumented students’ high levels of stress and poorer health, in comparison to previous research on other national samples. In a structural equation model, we found academic and future concerns to be significantly associated with higher stress, which was in turn, associated with poorer self-rated health. Financial concerns were not associated with higher perceived stress but were directly associated with poorer self-rated health. Notably, deportation concerns did not have any significant independent associations with stress or health. We use our qualitative data to identify specific stressors embedded within these four dimensions. Our findings inform understandings of the health risks arising from documentation status.     

Mobile Ungleichheiten. Eine sozial- und infrastrukturelle Differenzierung des Mobilitätstheorems

The core claim of the Mobilities Paradigm which understands the social as constituted through movement also implies, that mobility emerges from socially and spatially structured situations and therefore, mobility cannot be derived from individual properties alone. With the aim of translating the stratifying dimension adequately into methods, the contribution presents an international comparative correspondence analysis searching for specific patterns of residential migration and commuting distances of couple households.     

Impact of low fertility and early age at sterilisation on women’s formal education and skill development in South India

This paper examines the impact of low fertility and early age at sterilisation on women’s formal education and skill development in South India. Multilevel ordered-logit modelling of pseudo-cohort data re-organised from the three rounds of National Family Health Survey, and thematic analysis of qualitative data collected from Tamil Nadu and Kerala states showed no evidence of women’s resumption of formal education or uptake of skill development training in the post-sterilisation and post-childcare period. While resuming formal education in the post-sterilisation and post-childcare period is harder to achieve for various individual, household, community and policy reasons, there is greater preparedness and support for women to undertake skill development training. As low fertility and early age at sterilisation are widely regarded as the emerging reproductive norm in India, post-sterilisation and -childcare women will be a significant population group both in number and in proportional terms. No government policies or programs have so far recognised this group. India’s new government should consider targeted skill development programs for post-sterilisation and -childcare women appropriate to their social, economic and educational levels. An important contribution of the family planning program, particularly female sterilisation, for the economic and social development of the family and the wider society will otherwise be lost.     

Welfare reform and immigrant fertility

Immigration policy is at the forefront of US policy discussions, and the use of welfare benefits by immigrants has been hotly debated. In 1996, Congress enacted welfare reform legislation, which imposed strict restrictions on welfare eligibility for noncitizens. However, a number of states restored access to welfare benefits to immigrants that had been cut out in the federal welfare reform law. Using data from the Current Population Survey, we examine whether immigrant women adjusted their childbearing in response to changes in the generosity of welfare benefits at the state-level. We find that noncitizen women reduced their fertility in response to cutbacks imposed by the legislation. Our findings, which prove robust to a number of identification and robustness checks, underscore how immigrants respond to state-level policies and provide insight into the potential impacts of comprehensive immigration reform, particularly the components related to the path to citizenship and access to public benefits.