运营滞后与信用担保互换下的项目投资决策模型

在项目投资面临运营滞后以及债务融资约束的情形下,基于实物期权框架构建了企业家签订信用担保互换契约的两阶段投资决策模型。运用动态规划以及均衡定价方法,给出了企业家股权及期权价值的显示表达,得到了两个阶段担保成本满足的代数方程,并进一步分析了运营滞后和信用担保下企业家的最优投资决策问题。数值结果表明：外部运营时滞会提高杠杆率,导致企业家提前投资,同时会提高企业家第一阶段债务融资的担保成本,但会降低第二阶段债务融资的担保成本;随第一阶段投资额度逐渐增大,企业家的最优投资水平呈U型变化,第一阶段债务融资时的担保成本单调递减,而第二段债务融资时的担保成本呈现倒U型;企业家两个阶段的融资缺口对项目最优投资水平、最优破产水平以及担保成本有显著影响。     

Intergenerational relationships in Chinese transnational families: A typology study

ABSTRACT

Using latent class analysis, this study examined the overall patterns of multifaceted intergenerational relationships of 604 parent-child dyads in 292 transnational families in Beijing, China. Three family relation types emerged: local obligatory (27%, with reciprocal support and ambivalent feelings), distant discordant (27%, with weak associations and high conflict), and distant intimate (46%, with highest filial ratings and emotional quality). Parents’ health and children’s marital status, socioeconomic status, childcare responsibilities, and sibling numbers were associated with different relation types. The findings are helpful for social workers to identify subgroups of older adults in transnational families who are at risk of having inadequate support.     

生活、关系、空间:城市社区融合共建的三维逻辑——基于上海市D社区的案例研究

十九大报告指出,打造共建共治共享的社会治理格局,推进社会治理社会化、法治化、智能化、专业化。上海市D社区基于生活、关系、空间三维向度的城市社区融合共建某种意义上表明了当前社区建设的一种价值取向和行动回归,通过社区动员培育居民自治意识与自治能力,营造社区文化,深化关系联结,从而有效提升社区社会资本,推动社区多元主体整合,形成以基层情感治理为主线、以专业工作介入为手段、以社区文化建设为目标的城市社区整合共建的现实路径。     

长期执政条件下中国共产党密切联系群众动力研究

社会主义国家普遍实行的是一党长期执政。在我国当前一党执政的新时期、新形势下,中国共产党要坚定党的既定方针,带领中国人民实现中华民族的伟大复兴使命,更加需要同广大的人民群众保持密切的联系。在贯彻落实群众路线时,要切切实实地关注广大百姓的切身利益与实际问题,特别是要建立起一种能够将我党同广大人民群众密切联系起来的长效机制。     

Occupational Engagement and Academic Major Satisfaction: Vocational Identity's Mediating Role

This study examined vocational identity as a mediator of the relationship between occupational engagement (i.e., participation in a breadth of activities and interactions) and academic major satisfaction. Furthermore, the authors evaluated whether satisfaction with academic major related to academic success (i.e., grade point average). The mediational model was tested in a sample of undergraduate students (N = 215). Results indicated that occupational engagement significantly predicted academic major satisfaction and that vocational identity fully mediated that relationship. These findings support occupational engagement as an important contributor to adaptive career decision making and encourage research on occupational engagement as an intervention point for career counselors.     

转型期的家庭代际情感与团结——基于上海两类“啃老”家庭的比较

"啃老"是转型期家庭领域充满结构性张力和矛盾意向的集中体现。在个体化和矛盾意向视角下,本文选取上海市的访谈案例,通过比较和谐与冲突的两类"啃老"家庭,分析家庭成员的不同认知策略及其对代际关系走向的影响,以此来展示家庭成员在利益、价值、情感方面的互构和张力,讨论传统与现代如何共同塑造当下的中国家庭生活。研究发现,当下中国城市家庭代际关系的自反性并未导致家庭的个体化,相反,代际责任伦理在家庭成员的自反性生涯和协商实践中得以再造。社会转型强化了"亲子一体"的情感结构,让代际互助传统表现出了强大的文化抗逆性。     

Impact of metabolic syndrome and its components on kidney stone in aging Taiwanese males

Objectives: Metabolic syndrome (MtS) and kidney stone are two common aging diseases with male dominant. This is the first study regarding the potential impact of MtS and its components on kidney stone in aging Chinese population.

Methods: A total of 694 males with a mean age of 55.6 years were enrolled. The definition of MtS was according to the modified criteria developed by the Bureau of Health Promotion in Taiwan. Subjects were classified as having a disease of kidney stones according to diagnosis by a physician with available medical records or evidence from ultrasonography judged by an investigator of urologist.

Results: Using age-adjusted multivariate logistic regression analysis, our results showed that subjects with kidney stone had significantly higher prevalence of MtS (p?=?0.04, OR?=?1.74, 95% CI: 1.0 1–3.00). The presence of MtS had significant correlation with kidney stone (p?=?0.01, OR?=?1.83, 95% CI: 1.1 4–2.93), which were associated with the increment of MtS components (p?p?Conclusions: In aging Taiwanese males, the presence of MtS and its components are strongly associated with kidney stone. Abnormal BP is the most significant risk component of MtS for kidney stone.     

Discrimination and incorporation of Taiwanese indigenous Austronesian peoples

This paper examines contemporary developments among Taiwan’s indigenous Austronesian peoples. We have reviewed major policy changes mainly since the 1980s and their impacts on later developments – both the positive improvements in general well-being and the persistence of ingrained problems among them. Major findings indicate two growing trends among Taiwanese Austronesians. One is the rise of interest in their cultures and efforts to preserve and restore selected indigenous customs and practices. The other trend is a continuous outflow of the indigenes from traditional tribal communities to urban centers for better employment, education, or health care. Their increasing urbanization also contributes to more inter-ethnic marriages and the loss of indigenous languages and practices. The case of Taiwanese Austronesians illustrates the impacts historical and politico-economic processes are having on indigenous peoples.     

广州市农村留守儿童问题研究

基于问卷调查研究广州市农村留守儿童问题。调查显示,广州存在农村留守儿童及其问题,但是,广州农村留守儿童问题程度相对较轻。根本原因是广州作为改革开放的前沿阵地,城乡经济社会发展和二元结构改革取得了重大进展。对广州农村留守儿童问题不能听之任之,要加强农村留守儿童的家庭监护主体责任和学校关爱保护工作。     

Watching online videos interactively: the impact of media capabilities in Chinese Danmaku video sites

In China, the implementation of a Danmaku social media system to sustain and raise user interest in online video sites is an increasingly widespread phenomenon. Danmaku technology is used to display users’ messages in written text on the online video stream. Little is known about the effects of this form of interactive enhancement. The aim of this empirical study is to evaluate the evolving media capabilities of the Danmaku system and their effects on users’ perceptions of interactivity and their intentions to continue using Danmaku. We draw on media synchronicity theory and apply it to a stimulus-organism-response model. Using this framework, we hypothesize that the media capabilities of the Danmaku system, namely its transmission velocity, parallelism, symbol sets, rehearsability, and reprocessability, elicit increased interactivity, which influences users’ instantaneous intentions to share and to continue the use of the Danmaku system. The results showed that both users’ instantaneous intention to share and their intention to continue to use were significantly affected by the perceived interactivity. Unlike the results of previous studies, our findings showed that all five media capabilities positively affected the users’ perceptions of interactivity. The potential theoretical and practical implications of our findings are discussed.