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。     

Modification of GEE1 and linear mixed-effects models for heteroscedastic longitudinal Gaussian data

A characterization of GLMs is given. Modification of the Gaussian GEE1, modified GEE1, was applied to heteroscedastic longitudinal data, to which linear mixed-effects models are usually applied. The modified GEE1 models scale multivariate data to homoscedastic data maintaining the correlation structure and apply usual GEE1 to homoscedastic data, which needs no-diagnostics for diagonal variances. Relationships among multivariate linear regression methods, ordinary/generalized LS, naïve/modified GEE1, and linear mixed-effects models were discussed. An application showed modified GEE1 gave most efficient parameter estimation. Correct specification of the main diagonals of heteroscedastic data variance appears to be more important for efficient mean parameter estimation.     

The optimism trap: Migrants’ educational choices in stratified education systems

Immigrant children's ambitious educational choices have often been linked to their families' high level of optimism and motivation for upward mobility. However, previous research has mostly neglected alternative explanations such as information asymmetries or anticipated discrimination. Moreover, immigrant children's higher dropout rates at the higher secondary and university level suggest that low performing migrant students could have benefitted more from pursuing less ambitious tracks, especially in countries that offer viable vocational alternatives. We examine ethnic minority's educational choices using a sample of academically low performing, lower secondary school students in Germany's highly stratified education system. We find that their families' optimism diverts migrant students from viable vocational alternatives. Information asymmetries and anticipated discrimination do not explain their high educational ambitions. While our findings further support the immigrant optimism hypothesis, we discuss how its effect may have different implications depending on the education system.     

Moroccan women in Madrid: between change and continuity

This article focuses on individual migration and acculturation processes experienced by Moroccan women in the area of Madrid, based on qualitative research conducted in the Spanish capital in 2008. The results show that Moroccan women restructure their daily practices through complex acculturation processes, orienting them towards both the society of origin and that of arrival. They experience a constant struggle in getting to know the traditions of Spanish society, reorienting their former traditions and inventing new solutions. Moroccan women develop new ways of adapting themselves to their situation in Madrid. This acculturation process bridges the continuity with their culture of origin and reflects changes related to the new context. The studied women move in a transnational space with rigid borders, which is intersected by several social categories such as their education, ethnicity and gender, influencing their relative position within this space.     

Redefining membership: restrictive rights and categorisation in European Union migration policy

This article analyses European Union (EU) policy-making on the rights of third-country nationals (TCN) against the backdrop of theoretical literature on the transformation of citizenship. The aim is to evaluate why and to which extent EU policy expands citizenship rights to TCNs, thus redefining the criteria for membership in the European polity. The research emphasises the role of norms and frames in policy-making and is based on secondary sources, primary documents and semi-structured interviews. The analysis reveals how the combination of a principled conflict over citizenship and a strategic conflict over competence led to a legal framework characterised by ‘restrictive rights’ and ‘politics of categorisation’. ‘Restrictive rights’ means that membership rights are granted to TCN in principle, but subject to very restrictive conditions. ‘The politics of categorisation’ refers to the political construction of migrant categories that are subject to different rights-regimes. Both phenomena have the ambiguous effect of enabling the expansion of rights to non-citizens while at the same time creating new lines of division and mechanisms of exclusion.     

人口迁移与流动对我国各地区经济影响的实证分析

在对近十年来我国人口迁移和流动的时空演变格局进行初步考察的基础上,文章利用面板数据的变系数模型分别实证考察了人口迁移和流动对我国各地区(省域)经济的影响。结果发现:(1)我国各地区间人口迁移相对平稳,而人口流动在2000年以后呈现出持续快速增长的态势,且空间流向极不均衡;(2)人口的迁移和流动对中国整体经济来说是一个帕累托改进;(3)户籍制度对于发达地区起到了人才沙漏的作用;(4)对于中部的绝大部分地区以及西部的一些人口输出大省,伴随人口迁出而引起的人力资本流失对当地经济的负面影响开始凸显出来,人口流出虽然基本出现一个正面影响,但对本地经济发展的贡献并不如我们预想的那么明显。     

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。     

人口计生宣传教育为“先导”的重心和支点

宣传教育为先导的战略决策,是国家人口计生委党组书记、主任李斌同志2007年年底在河南召开全国农村人口文化建设工作现场会和在宁波市召开全国婚育新风进万家活动经验交流会上提出的重大战略思想。宣传教育为先导战略决策的提出,是在科学发展观指引下尊重思想政治工作、精神文明建设和人口计生工作客观规律,总结正反两方面工作经验教训的必然产物,是今后做好人口计生工作的元点工程。本文主要论述了为什么要先导,先什么、导什么,如何先导三个重大问题。     

论北京“城中村”改造——兼述流动人口聚居区合作治理

2009年以来北京开始进行大规模的城中村改造。这场由政府主导的乡村社会变革,对城乡结合部流动人口聚居区产生了重要影响。本文在概括北京城中村改造模式的基础上,对城中村改造的作用给予了积极评价,同时指出城中村改造周边地区可能面临更深的发展困境,应通过合作治理寻求解决城乡结合部流动人口聚居区社会问题的治理之道。目前北京已经具备了实现流动人口聚居区合作治理的基本条件,可以在市区政府是主导、乡村组织是枢纽、社区成员是核心、社会团体和社会单位(企业)是支撑、专业NGO是助推器的合作治理框架下,以生活设施改造和社会管理体制创新为突破口,统筹兼顾尚待城市化地区的协调发展。