Two-step calibration of design weights under two auxiliary variables in sample survey

Calibration on the available auxiliary variables is widely used to increase the precision of the estimates of parameters. Singh and Sedory [Two-step calibration of design weights in survey sampling. Commun Stat Theory Methods. 2016;45(12):3510–3523.] considered the problem of calibration of design weights under two-step for single auxiliary variable. For a given sample, design weights and calibrated weights are set proportional to each other, in the first step. While, in the second step, the value of proportionality constant is determined on the basis of objectives of individual investigator/user for, for example, to get minimum mean squared error or reduction of bias. In this paper, we have suggested to use two auxiliary variables for two-step calibration of the design weights and compared the results with single auxiliary variable for different sample sizes based on simulated and real-life data set. The simulated and real-life application results show that two-auxiliary variables based two-step calibration estimator outperforms the estimator under single auxiliary variable in terms of minimum mean squared error.     

走向"扁平化"的知识型城市

中国即将成为先进的知识经济大国的趋势,也为其他国家带来了发展机遇,、本文所研究的核心问题是,如果以知识经济发展为指导的管理政策作为工具,一个人口大国的发达与欠发达地区之间的不均衡是否能够以及如何能够“扁平化”。我们特别要关注的是正在发展中的知识社会是否能够缩窄知识鸿沟以及由此缩短整体的发展差距,“扁平化世界”的概念就是大家都在同一水平的起跑线上。我们选择以中国为例,是因为她悠久的历史和地缘政治的复杂性对其他发展中国家具有借鉴意义。不少学者们认为,是邓小平的改革开放政策改变了中国的落后面貌,但笔者却持相反观点,认为中国的兴衰成败,并不单纯地取决于国界的开放与否,而是取决于整个社会是否存在积极的学习态度以及可供借鉴学习的参照体．     

The policy significance of inequality decompositions

Economists are now familiar with ‘between’ and ‘within’ group inequality decompositions, for race, gender, spatial units, etc. But what exactly is the normative significance of the empirical results produced by these decompositions? This paper raises some basic questions about policy interpretations of decompositions that are found in the literature.     

Voting and Social Inclusion in Sweden

Three decades ago, Sweden extended municipal and provincial voting privileges to non‐citizen residents arguing that it would increase political influence, interest and self‐esteem among foreign citizens. The aim of this paper is to explore the act of voting as a measure of social inclusion by comparing voting propensities of immigrants (people born outside Sweden), their descendants (born in Sweden) and native Swedish citizens (those who have citizenship through jus sanguine) while controlling for a range of socio‐economic, demographic characteristics, contextual factors and a set of “hard” and “soft” social inclusion related variables. In particular we focus on the impact of citizenship acquisition ‐‐ does the symbolic act of attaining citizenship result in increased voting participation on the part of Swedish residents who are not citizens by birth. We use the Swedish 2006 electoral survey matched to registry data from Statistics Sweden to assess the correlates of voting by Swedish‐born and immigrant residents. Using instrumental variable regressions we estimate the impact of citizenship acquisition. We find that acquisition of citizenship makes a real difference to the probability of voting. Immigrants who naturalise are in general far more likely to vote than those who do not.     

Leveraging Supply Chain Integration through Planning Comprehensiveness: An Organizational Information Processing Theory Perspective

This study extends prior research on supply chain planning and integration by examining the underlying capabilities by which firms exploit the information they gain from integration activities. We use organizational information processing theory (OIPT) to develop hypotheses that identify the comprehensiveness of an organization's supply chain planning capabilities as an important mediator in the relationship between its supply chain integration activities and its operational performance. Further, our interpretation of OIPT suggests that an organization's usage of technology‐enabled supply chain management systems (SCMS) moderates these effects. Using survey data from 445 global firms, we estimate the corresponding moderated‐mediation structural model. The results indicate that usage of SCMS enables organizations to better utilize the information they gain from external integration efforts (relationships with customers and suppliers), thus improving the comprehensiveness of their supply chain planning capabilities. In contrast, the use of SCMS appears to be a partial substitute for internal integration as a driver of planning comprehensiveness. Most importantly, the results suggest that planning comprehensiveness is a significant generative means by which integration and technology investments produce superior operational performance. These findings provide a richer and more theoretically grounded explanation of relationships between supply chain integration, supply chain planning, and operational performance.     

Absent presence: the ongoing impact of men's violence on the mother–child relationship

This paper draws from interviews with 45 mothers and 52 children who participated in an action research project to develop activities to support women and children in the aftermath of domestic violence. A thematic analysis was used to analyse the data and explore the question: In what ways does the perpetrator of abuse remain present in the lives of women and children following separation? The paper invites workers to recognize the distortions created by domestic violence that may need to be identified and addressed in the aftermath of violence. The ways in which past trauma, erosion of self‐esteem and the undermining of the mother–child relationship continues to create a shadow across the present relationship are identified. The continued presence of the perpetrator of abuse through child contact arrangements and ongoing harassment is also highlighted. The ‘absent presence’ of the abusive partner is posited as a concept to assist workers with a framework through which to understand problems in the mother–child relationship which emerge when living with and separating from a violent partner. The paper has implications for social workers orientating practice to focus on perpetrator accountability and support strengthening the mother–child relationship.     

The Sound Of Silence: Listening to What Unaccompanied Asylum-seeking Children Say and Do Not Say

Unaccompanied asylum-seeking children are noted at times tobe silent or circumspect about their origins and circumstanceswhen faced with authority figures, including social workers.Using some key ideas from ethnography and narrative therapy,this article examines existing literature on silence in thelives of unaccompanied minors, and on how the choices they makeabout talking and not talking can hinder or facilitate resettlement.It then describes a small research study within which interviewswere undertaken with local authority social workers to elicittheir responses to unaccompanied minors in such circumstances.These revealed that practitioners understood the children’ssilence in varied ways, and that they could be practically helpful,therapeutically minded and reliable companions, accompanyingthe young people towards resettlement, with or without knowingthe detailed ‘truth’ about their past