全国流动人口计划生育管理研究

本文根据全国及部分地方有关流动人口计划生育的调查和相关的现有资料 ,分析了中国流动人口的规模、影响人口流动的因素、流动人口的特点和计划生育工作存在的问题 ,并提出了今后加强流动人口计划生育工作的对策和建议。     

从第五次人口普查看世纪之交的广东人口状况

1990年以来 ,广东人口状况发生了深刻的变化。这些变化有的符合全国普遍规律 ,有的因受广东特殊社会经济环境的影响表现出不同特点。本文利用第五次人口普查最新数据 ,分析广东人口在数量、分布、素质和结构等方面的现状和特点     

澳门近十年人口自然增长概况

澳门是一个面积不到 2 4平方公里的地方 ,其人口在过去十年增加了近三成。人口的增加主要来源于移民 ,特别是来自中国内地的移民 ,他们同时亦对澳门人口的自然增长带来很大的影响 ,原因是来自中国内地的移民有较高的生育率。本文简单地介绍了这一现象 ,以及澳门人口自然增长的其他情况。     

关于老年问题研究文献的内容分析

老年问题从家庭的、个人的问题逐渐变成了社会问题,引起了全社会的高度重视.本文应用内容分析方法,分析了我国自80年代以来,老年问题研究的历史、现状、总体趋势,并提出了几点建议.     

1982年以来北京人口时空演变研究

利用第三次、第四次、第五次和第六次全国人口普查数据,借助ArcGIS空间分析技术,对北京1982～2010年间的人口时空演变进行了分析研究。结果表明：北京人口规模大,增长速度快,外来常住人口的增加是城市人口规模扩大的主要原因;北京人口呈火山口型的分布格局虽然没有改变,但已由尖锐单峰式火山口型向较低缓多峰式火山口型分布格局转变,人口呈圈层梯度推移式辐射扩张和沿放射状干道外向发展;核心区人口逐步向外疏散,城市功能拓展区和城市发展新区人口不断集中;外来常住人口居住地空间分布呈现大分散、小聚居的特点,主要分布在近郊区的乡镇街道,形成围绕核心区的反“C”字形的环状分布带。城市化快速发展、多元化城市定位、产业结构调整、低层次产业吸引、城市规划引导是北京人口时空演变的作用机制。     

中国人口老龄化的地区差异分析

本文基于1990—2013年省际面板数据,以老年人口比重作为老龄化指标,采用基尼系数分解方法和Kernel密度估计方法,实证分析了中国人口老龄化的地区差异及其动态演进过程。研究结果表明：中国人口老龄化在地区分布上呈现出明显的非均衡特征;基尼系数测算及其分解结果表明,人口老龄化的地区差异总体上呈现波动缩小趋势;2004年以前,地区间差距和超变密度交替成为总体地区差异的主要来源,2004年以后,超变密度成为总体差异的主要来源。 Kernel密度估计显示,老龄化程度不断加深,地区差异呈波动趋势。     

高等教育人口规模对经济增长的影响：地区异质性检验

近年来我国高等教育人口规模不断扩张,对经济社会产生了积极的影响。本文通过建立数理模型阐释了高等教育人口扩张对经济增长的影响机理,并使用1995年到2013年的省级面板数据考察了我国高等教育人口扩张对经济增长的作用,以及这一作用在不同地区的异质性。固定效应和随机效应模型表明,我国高等教育人口扩张促进了地区经济增长,且中西部地区的促进作用要大于东部地区。为了克服由反向因果引起的内生性偏误,本文使用2SLS方法进行了相应处理,结果依旧稳健。本文的研究对于制定高等教育发展的相关政策具有一定的参考意义。     

Variance estimation for the 2006 French housing survey

In the 2006 French housing survey, information is collected on many aspects of housing to describe the housing stock in France and the housing conditions of French households. The basic national sample results from a multistage sampling design. Complementary samples were selected to perform accurate estimations for socio-demographic domains. Some French regions proceeded to a regional and local extension of the national sample. The variance is estimated for a region with a regional and local extension of the basic national sample.     

Improved randomized response in additive scrambling models

Randomized response models deal with stigmatizing variables appearing in health surveys. Additive and subtractive scrambling in split sample and double response yield unbiased mean and sensitivity estimators of high precision. The split sample method is protective of privacy. The double response method is as protective only conditionally. To achieve the maximum efficiency, the scrambling variables must be similar to each other and the probability of obtaining a true response must be as large as possible. The randomized response procedures yield more efficient estimates of the average total number of classes missed by university students.     

The echo chamber is overstated: the moderating effect of political interest and diverse media

ABSTRACT

In a high-choice media environment, there are fears that individuals will select media and content that reinforce their existing beliefs and lead to segregation based on interest and/or partisanship. This could lead to partisan echo chambers among those who are politically interested and could contribute to a growing gap in knowledge between those who are politically interested and those who are not. However, the high-choice environment also allows individuals, including those who are politically interested, to consume a wide variety of media, which could lead them to more diverse content and perspectives. This study examines the relationship between political interest as well as media diversity and being caught in an echo chamber (measured by five different variables). Using a nationally representative survey of adult internet users in the United Kingdom (N?=?2000), we find that those who are interested in politics and those with diverse media diets tend to avoid echo chambers. This work challenges the impact of echo chambers and tempers fears of partisan segregation since only a small segment of the population are likely to find themselves in an echo chamber. We argue that single media studies and studies which use narrow definitions and measurements of being in an echo chamber are flawed because they do not test the theory in the realistic context of a multiple media environment.