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981.
The article introduces a framework for understanding women's entry into the academic world and how it interacts with internal departmental structures and practices. It presents three specific strategies applied by a group of women to gain a doctorate and acceptance in their department. Few previous studies have stressed women's strategies to cope with the organizational setting in academia. The article draws on previous research on women in academia and how organizational characteristics influence women's careers. It is based on a case study of a Swedish university department. Sweden is often recognized for creating favourable working conditions for women. Yet the Swedish academic world is very male‐dominated at the top and even the medium level. It is also more common than in many other Western countries that academics stay on at the department where they graduated. Therefore, a PhD is often a first step in a career within that department. 相似文献
982.
Graphical models for skew-normal variates 总被引:2,自引:0,他引:2
This paper explores the usefulness of the multivariate skew-normal distribution in the context of graphical models. A slight extension of the family recently discussed by Azzalini & Dalla Valle (1996 ) and Azzalini & Capitanio (1999 ) is described, the main motivation being the additional property of closure under conditioning. After considerations of the main probabilistic features, the focus of the paper is on the construction of conditional independence graphs for skew-normal variables. Necessary and sufficient conditions for conditional independence are stated, and the admissible structures of a graph under restriction on univariate marginal distribution are studied. Finally, parameter estimation is considered. It is shown how the factorization of the likelihood function according to a graph can be rearranged in order to obtain a parameter based factorization. 相似文献
983.
This paper proposes a high dimensional factor multivariate stochastic volatility (MSV) model in which factor covariance matrices are driven by Wishart random processes. The framework allows for unrestricted specification of intertemporal sensitivities, which can capture the persistence in volatilities, kurtosis in returns, and correlation breakdowns and contagion effects in volatilities. The factor structure allows addressing high dimensional setups used in portfolio analysis and risk management, as well as modeling conditional means and conditional variances within the model framework. Owing to the complexity of the model, we perform inference using Markov chain Monte Carlo simulation from the posterior distribution. A simulation study is carried out to demonstrate the efficiency of the estimation algorithm. We illustrate our model on a data set that includes 88 individual equity returns and the two Fama-French size and value factors. With this application, we demonstrate the ability of the model to address high dimensional applications suitable for asset allocation, risk management, and asset pricing. 相似文献
984.
VI. Conclusion The rapidly increasing use of Internet and e-mail in the workplace has introduced complicated issues related
to the areas of potential liability of employers arising from the improper use of the Internet and e-mail by employees, as
well as creating numerous privacy issues which must soon be addressed by all employers — union and nonunion. If employers
specify and disseminate clear and concise e-mail and Internet use policies, they will be able to significantly reduce the
risk associated with employee misconduct in this area. Not only should the policies be clear and concise, but they should
also be communicated to the employees in such a fashion that all employees understand the policy and the consequences of breaching
that policy. 相似文献
985.
986.
Anne E. Sved-Williams Peter Burnett Fiona Hawker 《Australian and New Zealand Journal of Family Therapy》1991,12(1):9-16
Using a biopsychosocial model, a three dimensional map provides guidelines for changing from strategic therapy when progress in this approach falters. The method is pragmatic and atheoretical, and brings together ideas from various schools which empirically have been found useful. Practical and inclusive guidelines are offered for family (and individual) therapy which address two important issues: reinforcement of change when progress is occurring, and a shift from an interactional to another dimension when stuck points are reached. The multi-dimensional approach is clear, can be used by individuals or teams, lends itself to teaching and is of particular value for entrenched and complex problems. Four case histories are presented to highlight the approach. 相似文献
987.
本文回顾了有关认同资本(Coté1997;Coté Levine,2002)和社会资本(Putnam,2000)获得过程的研究,并将其应用于现当代社会社会化性质的改变之中.现当代社会的改变包括:1)保护儿童和青少年不受大众暴力以及广告等因素的潜在腐蚀.2)提供个体积极发展的途径,如参与社区儿童中心的活动以及加入成人公民社会.文中列举的例子涵盖了从自发到政府组织的机构,效果有正面的也有负面的. 相似文献
988.
989.
990.
The relative earnings growth for immigrants in Norway is computed. Unlike Hayfron (1998, this journal) we define immigrants
by country of origin rather than citizenship and perform separate studies of immigrants from inside and outside the OECD region.
Replicating Hayfron op.cit. we find that the earnings assimilation is considerably weaker. Further, we find that the earnings
of OECD immigrants are comparable to those of natives, while Non-OECD immigrants earn considerably less than natives at the
time of entry, but that their relative earnings improve gradually over time. Earnings of different immigrant cohorts converged
from 1980 to 1990, indicating a non-linear rate of assimilation.
Received: 7 April 2000/Accepted: 4 January 2001 相似文献