Business Cycles,Medicaid Generosity,and Birth Outcomes

Birth outcomes influence many aspects of later life health and wellbeing, making healthcare access during pregnancy a policy priority. Low-income mothers often depend on Medicaid, for which eligibility is determined by their income relative to state eligibility thresholds. The prevalence of adverse birth outcomes is known to exhibit cyclical variation, due in part to changes in the composition of women giving birth in response to changing economic conditions. However, cyclical variation in adverse birth outcomes also varies with respect to Medicaid eligibility thresholds. Our analysis uses birth-records data for 2000 through 2013, aggregated into 173,936 county-by-quarter observations and linked to county-level unemployment rates and state-level parental Medicaid thresholds. Using fixed-effects negative binomial models, we examine the role of Medicaid generosity in influencing birth outcomes across business cycles. We test for interactions between Medicaid and unemployment, hypothesizing that the negative effects of recessions are worse where Medicaid thresholds are more restrictive. We find that higher Medicaid generosity dampens the negative effects of recessions on birth outcomes. The extent to which Medicaid interacts with unemployment also varies according to the age and race composition of mothers; in particular, Black mothers are both most affected by unemployment and most responsive to Medicaid generosity. Given current concerns about racial gaps in both infant and maternal mortality, our findings suggest that Medicaid may be an important feature of a strategy to close gaps in the prevalence of adverse birth outcomes across racial groups, especially during bust years.     

1977～2009年人口学CSSCI期刊论文作者统计分析

论文是科研人员从事科学研究产生成果的重要表现形式,作者数量和文献数量之间的关系是遵循科学研究发展的客观规律。通过使用文献计量学的方法,对7种人口学CSSCI期刊自创刊起至2009年的全部论文进行分析,主要发现:(1)7种期刊不同论文数量的作者占作者总人数的概率分布都遵循Lotka定律,新老作者结构合理;(2)7种期刊新增量都显著低于理论最佳值,说明学术研究队伍非常稳定,但是活力不足,容易出现作者老化现象。     

城市空间关系问题研究——以黄冈与武汉城市圈内周边城市空间关系为例

城市化的快速发展使得城市空间关系不断变化,如何准确界定城市空间关系对城市战略选择至关重要。本文在总结前人对城市空间关系研究的基础上,将城市空间关系分为依附型、竞争型、共生型、异质型四种。进而在此基础上以黄冈为案例,研究黄冈与武汉城市圈内周边城市的关系,并提出黄冈的定位和发展战略。     

Racial diversity, minority concentration, and trust in Canadian urban neighborhoods

Using a sample of 42,329 respondents nested within 4254 Canadian urban neighborhoods, this study demonstrates the conceptual and empirical importance of making a distinction between neighborhood racial diversity and minority concentration, and examines how each is uniquely associated with trust. Our analysis shows that at a given level of racial minority concentration, Whites are more trusting when their minority neighbors are more evenly distributed across racial minority groups. Meanwhile, Whites are less trusting as the neighborhood share of racial minorities increases. Overall, the effect of racial minority concentration tends to prevail over that of racial diversity.     

西昆仑出山径流尼雅河与尼雅聚落

西昆仑山脉出山径流尼雅河,系依赖上游源区冰川融化及山区降雨才得以形成.进入平川区、尾闾地区后,在塔克拉玛干沙漠气象条件及其下垫面作用下,尼雅河水渐渐消失.一百年来的尼雅遗址考察、考古及历史研究成果丰硕,尼雅从聚落到废墟的演变过程,反映了尼雅河来水等水源逐渐匮乏的事实,魏晋后尼雅行政建置丧失于交通价值的下降,喀帕克阿斯干村以北居民点,则最后废弃于彻底无水接济.     

科学发展观理论体系研究

科学发展观是关于发展的科学理论,是中国特色社会主义理论体系的最新成果.科学发展观作为科学理论体系是建立在马克思辨证唯物主义和历史唯物主义世界观立论基石之上的,是围绕着"实现什么样的发展、怎样发展"这一主题展开的,它的全部思想观点都是经过实践检验并在实践中修正、补充、发展的科学体系.科学发展观是一个科学的理论体系,它包括理论轮廓、框架结构和主要观点等丰富内容.     

"异化理论"中的自由观透视——重读《1844年经济学哲学手稿》

<1844年经济学哲学手稿>在异化劳动理论的阐释中,涵摄着马克思自由观的基本思想和基本逻辑.当我们在异化理论的透视中领悟这种自由观时,得出的结论是马克思在确立自由观时遵循着理性人与自由人的理论前提预设.站在当代角度上重新审视马克思理论的前提及由此演绎出的理论内容,是我们力图穿越时空界限、走进马克思的新的尝试.     

《西游记》中阿傩的冤案

《西游记》九十八回有一个阿傩向唐僧师徒索要"人事"的情节,这被许多人认为是作者表现阿傩索贿并进而讽刺佛教的重要证据。但从《西游记》的抑道扬佛倾向、从该情节所体现出的佛教教理教义、从作品的艺术构思与主题表现等方面来看析,作品中这个索要"人事"的情节,并非是对佛教的讽刺,而是作品整个佛教思想体系中的一个非常重要的组成部分,有着深刻的佛教文化内涵。     

民族区域自治与多民族国家的政治整合

多民族国家是现代民主国家的普遍形式,在国家主权范围内选择自治模式是其重要的制度建构.民族区域自治基于一体与多元的制度设计,是中国多民族国家政治整合的基本制度架构.但在新的形势下,民族区域自治基于一体的制度创新不足与基于多元的制度创新不够,使得这一制度的政治整合功能尚未充分发挥.因此,创新民族区域自治制度,提升民族区域自治的制度化整合效能是当代中国实现多民族国家政治整合的现实路径.     

多元文化主义对多民族国家政治整合的启示——以美国和加拿大为例

国家统一与民族多元是现代多民族国家政治整合的基本问题.对美国和加拿大的多元文化主义处理国家统一与民族多元二者关系的实践考察及其局限性和不足的分析,对中国民族区域自治制度的坚持和完善,实现多民族国家中国的政治整合,无疑具有重要的启示.