Life Satisfaction of Rural Migrant Workers in Urban China: The Roles of Community Service Participation and Identity Integration

Abstract

China is home to approximately 245 million rural-to-urban migrant workers. The influx of migrants into urban areas has posed various challenges for local social service systems. Recently, increasing number of community services have been developed to meet the growing service demands from the migrant population. However, whether increase in community service use results in improved wellbeing among migrant workers remains critically unexplored. As such, this study examines the role of community service use in migrant workers’ life satisfaction and the potential mediating effect of identity integration in Shenzhen, China. Bootstrapped models were adopted to examine relationship among variables. Drawing from a sample of 1,087 rural-to-urban migrant workers, we found that community service use is positively correlated with both identity integration and migrant workers’ life satisfaction. Moreover, identity integration served as a partial mediator between community service use and life satisfaction. The mediating effect of identity integration was found to increase with age. This study highlights that diverse services should be implemented to address divergent needs of migrants in different age groups. Community service can also serve as a vehicle to foster integration among migrant workers in host communities, especially for older age groups. Future studies may further investigate the relationships between community social capital, community social support, quality of community-based organization and frequency of service use so as to optimize the life satisfaction of migrant workers.     

The effect of paid maternity leave on low-income families' welfare use in the US

Despite the critical role that paid maternity leave can assume in the economic lives of low-income families, research to date has paid insufficient attention to whether paid maternity leave reduces welfare use for low-income families. Using the Current Population Survey (CPS) March Supplement 2007–2014 with the difference-in-difference (DiD) technique, this study finds a significant policy effect of paid maternity leave on reducing the probability of using Temporary Assistance for Needy Families (TANF), TANF benefit amounts and TANF participation length. This study confirms that paid maternity leave is likely to prevent low-income families from using welfare during job interruptions stemming from the birth of a child. Given that TANF is often associated with negative political and social connotations, paid maternity leave can be used as an important social policy to improve economic security as well as offer empowerment in overall social standing for low-income mothers. The discussion focuses on the implications of the findings in a broader context of American welfare states.     

理论与实践:中国文化产业十年总揽(上)

对十年来中国文产业理论与实践发展历程的全面梳理,是在我国文化产业发展进入一个崭新的历史发展阶段进行的。这一研究以2002年党的十六大召开,提出发展文化产业的基本任务,指明文化产业发展的基本方向为起点,把自2002年到2011年党的十七届六中全会提出建设社会主义文化强国十年历史进程中,文化产业概念研究、发展战略研究、文化体制改革研究、文化产业发展实务研究以及文化产业学术载体、档案和里程碑事件研究作为研究对象,系统梳理十年间文化产业的理论脉络、研究重点和研究方向。     

Marketing as an Investment in Shareholder Value

We present resource‐based and capability‐based arguments of marketing investment intensity to offer a strategic view of marketing as an investment in shareholder value. We find that marketing investment intensity has a U‐shaped quadratic effect on shareholder value creation (Tobin's q) that calls for marketing investment to be protected and increased, not surrendered. We show how marketing investments interact with investments in R&D, human capital and operations to reveal how strategic co‐investments can alter the shareholder value of marketing. Finally, we show how competitive intensity and failings in the firm's investment productivity (its ability to convert investment expenditure into sales) point to malaise in the firm's own strategic architecture as a fault for perceived poor returns from marketing investments. Our findings suggest that marketing investment should not be scapegoated when its contributions to shareholder value are not as expected. When invested in strategically and in combination with other investments, marketing can unlock exciting improvements in shareholder value.     

Validation of the Learning Transfer System Inventory (LTSI) in the Korean corporate context

Lack of a valid instrument to measure learning transfer predictors has been the major obstacle hindering Human Resource Development (HRD) professionals from moving forward. This problem is one of the lingering HRD issues in South Korea, in which human resources have been strategically emphasized as a critical asset due to the scarcity of natural resources. To address this issue, this study aims at testing the validity and reliability of the data collected with the Korean Learning Transfer System Inventory (LTSI) Version 4. A sample of 753 managers from 16 Korean industries was divided into two subsamples for exploratory and confirmatory factor analyses. Reliability and the effect of common method variance on the factor structure were examined, with the results suggesting that the LTSI is valid for use in the Korean industry.     

人民币汇率的双成分混合波动率模型

汇率波动性预测在金融和计算领域一直受到广泛关注,然而由于缺乏可以捕捉汇率波动动态变化的预测模型,高频汇率的波动率预测至今没有得到彻底的研究.文章提出了基于神经网络的双成分混合汇率波动率模型,该模型利用低通Hodrick-Prescott滤波器将已实现波动率分解为长期分量和短期分量,使用自回归神经网络模拟长期分量,一阶自回归过程模拟短期分量,通过实证分析确定自回归神经网络参数(10个隐神经元和四阶滞后输入神经元),以6种主要高频率汇率(英镑/人民币,美元/人民币,澳元/人民币,欧元/人民币,日元/人民币,和瑞士法郎/人民币),在5 h(d)、20 h(d)、100 h(d)、200 h(d)、360 h(d)和500 h(d)的预测区间构建1 h和1 d已实现波动率,并与双成分GARCH模型、EGARCH模型、四阶滞后自回归神经网络模型3个基准模型进行对比,分析模型的预测性能,实验评估表明,提出的混合预测模型在所有预测的范围内均显著地优于传统人民币汇率波动模型.     

An optimal online algorithm for the parallel-batch scheduling with job processing time compatibilities

We consider the online (over time) scheduling on a single unbounded parallel-batch machine with job processing time compatibilities to minimize makespan. In the problem, a constant \(\alpha >0\) is given in advance. Each job \(J_{j}\) has a normal processing time \(p_j\). Two jobs \(J_i\) and \(J_j\) are compatible if \(\max \{p_i, p_j\} \le (1+\alpha )\cdot \min \{p_i, p_j\}\). In the problem, mutually compatible jobs can form a batch being processed on the machine. The processing time of a batch is equal to the maximum normal processing time of the jobs in this batch. For this problem, we provide an optimal online algorithm with a competitive ratio of \(1+\beta _\alpha \), where \(\beta _\alpha \) is the positive root of the equation \((1+\alpha )x^{2}+\alpha x=1+\alpha \).     

建国初期云南的禁毒斗争及其成功经验

由于建国以前云南所在的西南地区是我国烟毒泛滥最为严重的地区,到建国初期云南烟毒泛滥的情况仍然十分严重,种植、制造、贩运、吸食烟毒活动仍有蔓延之势,严重影响着人民的健康、国民经济的恢复、政权的巩固和社会的安定。新中国成立后,中共云南省委和省人民政府按照中共中央、政务院和中共中央西南局、西南军政委员会的统一部署,积极投入禁毒斗争,最终从源头上堵住了烟毒的泛滥,基本上解决了建国以前云南历届政府均无法解决的烟毒问题,有力地促进了云南的经济发展和社会进步,并积累了丰富的成功经验。     

Estimation in capture–recapture models when covariates are subject to measurement errors and missing data

For capture–recapture models when covariates are subject to measurement errors and missing data, a set of estimating equations is constructed to estimate population size and relevant parameters. These estimating equations can be solved by an algorithm similar to the EM algorithm. The proposed method is also applicable to the situation when covariates with no measurement errors have missing data. Simulation studies are used to assess the performance of the proposed estimator. The estimator is also applied to a capture–recapture experiment on the bird species Prinia flaviventris in Hong Kong. The Canadian Journal of Statistics 37: 645–658; 2009 © 2009 Statistical Society of Canada     

新中国六十年文化现代化的思考

文化现代化是现代化中最艰难的文化转型.新中国60年来,历史的发展赋予中国文化现代化以鲜明的时代特征.思考新中国60年来文化现代化,从文化与经济政治、时代性与民族性、本土化与全球化、一元与多元、文化事业和文化产业、人的发展与社会发展等六对矛盾着手,辨证把握中国文化现代化的特征,有助于我们深化对中国文化现代化的规律性和艰巨性的认识.