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This paper deals with the destination decision of political migrants who, in spite of having strong cultural, ideological and religious ties to a particular potential destination, choose to emigrate elsewhere. The model presented characterizes the migrants, who have a choice of two possible destinations, by two properties, skill level and financial resources, and identifies those that move to each destination. The paper examines various immigration-encouraging policies and shows that although all of them will increase immigration, in some cases the economic quality of the new immigrants will rise and in some it will fall. This paper includes general evidence on the present immigration to Israel and some suggestions for empirical tests.Supported by the Schnitzer Foundation for Research on the Israeli Society and Economy.We would like to thank two anonymous referees for their valuable comments which simplified the presentation. 相似文献
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This work emerged from the need to better plan the daily work of 29 travelling service agents, who provide 1090 services to 412 customers in 283 sites, on daily average. A handy and flexible tool was developed and is presented herein. A major contribution of this study is an explicit consideration of the multi-dimensional nature of the problem by the inclusion of workload balancing, which may stand in conflict to cost minimisation. Further, the geographical distribution of the demand is highly irregular. Therefore, two load measures are required and balanced. This required to fitting a proper planning scheme. The planning tool has been applied successfully by the commercial service provider. Improvements in the order of 20% and more were obtained in key performance measures. Moreover, cost reductions, service improvement and load balance were obtained simultaneously: the standard deviations of the service times and working day’s duration were reduced by 18 and 58%, respectively. This enables to reduce the number of agents with no significant harm in performance. Additional practical advantages of the proposed tool are also discussed and demonstrated, for example, the ability to cope with geographical distributions and the flexibility to respond to daily variations in demand. 相似文献
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We analyze the risk levels chosen by agents who have private information regarding their quality, and whose performance will
be judged and rewarded by outsiders. Assume that risk choice is observable. Agents will choose risk strategically to enhance
their expected reputations. We show that conspicuous conservatism results: agents of different qualities choose levels below
those that would be chosen if quality were observable. This happens because bad agents must cloak their identity by choosing
the same risk level as good agents, and good agents are more likely to distinguish themselves if they reduce the risk level.
Our results contrast starkly with those for the case when risk choice cannot be observed.
相似文献
Richard ZeckhauserEmail: |
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Sarit Cohen-Goldner Chemi Gotlibovski Nava Kahana 《Journal of population economics》2009,22(4):983-1003
This paper presents a two-period human capital investment model, which is used to study the optimal investment decisions of
credit-constrained married immigrants relative to single immigrants and native couples facing a perfect capital market. The
model predicts that: (1) The comparative advantage in investment in local skills of one of the spouses may emerge from his/her
higher growth rate of imported human capital. (2) The optimal investment of each spouse is non-increasing in the level of
imported human capital of the spouse with the comparative advantage in investment, while it is non-decreasing in the level
of imported human capital of the other spouse. (3) When two immigrants get married, the spouse with the comparative advantage
in investment invests more than when he/she was single whereas the other spouse invests less.
相似文献
Nava KahanaEmail: |
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Eva Kahana Jeong Eun Lee Jeffrey Kahana Timothy Goler Boaz Kahana Sarah Shick 《Journal of intergenerational relationships》2015,13(2):150-166
This article considers the value of intergenerational and specifically, grandparental support, in the management of adaptive tasks posed by raising a young child with autism. The tasks addressed range from accessing early intervention to enhancing family social functioning. We note unique social, financial, and health-related stressors faced by families of children with autism. We outline an innovative, stress theory-based framework, the Autism Proactive Intergenerational Adaptation (APIA) Model, which delineates the role of grandparents in contributing to family adaptation to the stresses of raising a child with autism. We focus on proactive family coping strategies in building resilience and ameliorating the adverse impact of stressors on quality of life (QOL) for individual family members and for the family unit. We discuss barriers and facilitators of intergenerational alliances involving grandparental participation and support. 相似文献
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Kelley-Moore JA Schumacher JG Kahana E Kahana B 《Journal of health and social behavior》2006,47(2):126-141
Disability carries negative social meaning, and little is known about when (or if), in the process of health decline, persons identify themselves as "disabled." We examine the social and health criteria that older adults use to subjectively rate their own disability status. Using a panel study of older adults (ages 72+), we estimate ordered probit and growth curve models of perceived disability over time. Total prevalent morbidity, functional limitations, and cognitive impairment are predictors of perceived disability. Cessation of driving and receipt of home health care also influence older adults 'perceptions of their own disability. A dense social network slowed the rate of labeling oneself disabled, while health anxiety accelerated the process over time, independent of health status. When considering perceived disability, the oldest old use multidimensional criteria capturing function, recent changes in health status and social networks, and anxiety about their health. 相似文献
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We present and demonstrate a multi-criteria approach for evaluating R&D projects in different stages of their life cycle. Our approach integrates the balanced scorecard (BSC) and data envelopment analysis (DEA) and develops an extended DEA model. The input and output measures for the integrated DEA–BSC model are grouped in “cards” which are associated with a “BSC for R&D projects”. The BSC is embedded in the DEA model through a hierarchical structure of constraints that reflect the BSC balance considerations. We illustrate the proposed approach with a case study involving an industrial research laboratory that selects and executes dozens of R&D projects every year. 相似文献