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951.
This paper presents new evidence regarding the effects of legalization on the training of immigrants who were granted legal status through the US Immigration Reform and Control Act (IRCA) of 1986. Our findings point to a large increase in the immigrants’ incidence of training relative to comparable groups of natives following legalization. While training gains are higher for males, wage gains are higher for females. We also show that an important part of these changes in labor market outcomes occurs through occupation changes by newly legalized immigrants. 相似文献
952.
Previous research has suggested that men are more engaged as citizens than are women. Yet, little is known about gender cleavages across a variety of citizenship norms. To what extent do men and women define citizenship differently? To address that question, this study examines the importance men and women assign various citizenship rights and responsibilities using 2004 ISSP data from 18 Western, industrialized nations. Using a disaggregated approach to understanding definitions of citizenship, we examine political, civil, and social rights and responsibilities. After controlling for a variety of demographic and attitudinal influences, we find that men and women are not different in their views regarding the importance of political responsibilities. However, women do view political rights as significantly more important than do men. Further, in comparison to men, women view both civil and social responsibilities and rights domains as significantly more important. 相似文献
953.
André Casajus 《Social Choice and Welfare》2009,32(1):1-13
We introduce and characterize a component efficient value for TU games with a cooperation structure which in contrast to the Myerson (Math Oper Res 2:225–229, 1977) value accounts for outside options. It is based on the idea that the distribution of the worth within a component should be consistent with some connected graph which reflects the outside options of the component’s players. 相似文献
954.
Ghislaine Loyré 《International Review of Sociology》2009,19(3):559-567
Is it legitimate to establish a similarity of situation between migrants, and their descendants, and national minorities in a national territory, whether ethnic, cultural or religious? Both populations seem to be perceived in a comparable way by the majorities in power though they themselves may be plural in their composition. Accordingly some nation states create categories among the population, while others consider the law as universal for all. However, similar attitudes towards the other are developing based on psychological traits and with a socio-economic basis more often than not for political reasons. The ‘amalgam’ towards the Other depends on the meeting spot where real and forged identities meet. In the field there also function various levels of increasing mutual corresponding exclusions/rejections. Political utilitarianism is most clever in exploiting ‘amalgam’ to meet its own rallying views, the most obvious aspect being religious, whether openly developed or not. In spite of the clear danger of connecting worldwide places, a transverse study would enable one to bring into perspective similar phenomena all the more within their linkages. 相似文献
955.
This article is based on a current research, combining quantitative (human resources figures and statistics) and qualitative data (60 interviews with career managers, top managers and high potential talents, both men and women), conducted in a major French utility company on the subject of diversity and more specifically on the issue of women's access to top management positions. The main purpose of this research is to understand the difficulties women may encounter in the course of their occupational career linked to organizational aspects, including the ‘glass ceiling’ processes, informal norms related to management positions (such as time and mobility constraints) and social and cultural representations attached to leadership. The other perspective of this research focuses on the different strategies women and men build either to conform to the organizational norms or bypass them. The issue of work–life balance are therefore addressed both from a corporate/organizational standpoint and an individual and family perspective. 相似文献
956.
957.
958.
In this paper, the generalized exponential power (GEP) density is proposed as an importance function in Monte Carlo simulations in the context of estimation of posterior moments of a location parameter. This density is divided in five classes according to its tail behaviour which may be exponential, polynomial or logarithmic. The notion of p-credence is also defined to characterize and to order the tails of a large class of symmetric densities by comparing their tails to those of the GEP density.The choice of the GEP density as an importance function allows us to obtain reliable and effective results when p-credences of the prior and the likelihood are defined, even if there are conflicting sources of information. Characterization of the posterior tails using p-credence can be done. Hence, it is possible to choose parameters of the GEP density in order to have an importance function with slightly heavier tails than the posterior. Simulation of observations from the GEP density is also addressed. 相似文献
959.
This paper presents a Bayesian analysis of the projected normal distribution, which is a flexible and useful distribution for the analysis of directional data. We obtain samples from the posterior distribution using the Gibbs sampler after the introduction of suitably chosen latent variables. The procedure is illustrated using simulated data as well as a real data set previously analysed in the literature. 相似文献
960.
Serge?Cohen Sébastien?Déjean Sébastien?GadatEmail author 《Statistics and Computing》2012,22(3):753-772
This work investigates the problem of construction of designs for estimation and discrimination between competing linear models.
In our framework, the unknown signal is observed with the addition of a noise and only a few evaluations of the noisy signal
are available. The model selection is performed in a multi-resolution setting. In this setting, the locations of discrete
sequential D and A designs are precisely constraint in a small number of explicit points. Hence, an efficient stochastic algorithm can be constructed
that alternately improves the design and the model. Several numerical experiments illustrate the efficiency of our method
for regression. One can also use this algorithm as a preliminary step to build response surfaces for sensitivity analysis. 相似文献