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As companies look for better ways to managediversity, one of the approaches that is emerging is theuse of female and minoritynetwork groups. These groupsare not well understood, and there has been no quantitative analysis of their impact onminority employees. Social network theory suggests thatnetwork groups should enhance the social resourcesavailable to women and minorities and in that wayenhance their chance of career success, but somecritics of network groups suggest that backlash mightproduce greater social isolation and discrimination. Inthis paper, we analyze a survey of members of theNational Black MBA Association to find out whethernetwork groups have a positive impact on careeroptimism, what specific effects of these groups are mostbeneficial, and whether groups enhance isolation ordiscrimination. Results indicate that network groups have apositive overall impact on career optimism of Blackmanagers, and that this occurs primarily via enhancedmentoring. Network groups have no effect ondiscrimination, either positive or negative. There are someindications of greater isolation, but also someindications of greater contact with Whites.  相似文献   
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Jobs are changing in ways that will reduce benefits for retirees. This paper explores the variety of pressures that will tend to produce this result. One major factor is that employers have been responding to cost pressures and the need for flexibility by redesigning jobs. There has been a trend--which is likely to continue--toward more part-time and temporary jobs, more subcontracting, and more contingent-pay systems. The consequences are complex and not all bad, but for retirees the tendency will be toward fewer, less generous, or less secure benefits. As workers approach retirement age facing the prospect of diminished benefits, increasing numbers of them will have to choose work to maintain their standard of living. At the same time, demographic pressures will gradually push employers to seek new pools of workers, including retirees. Gradually, employers are likely to provide fewer social-protection benefits to older people, but more employment opportunities.  相似文献   
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Following recent developments concerning individual differences in nonverbal social skills, the present study examined the inter-relationships of several standardized measures of nonverbal skills and personality. Particular attention was given to the concept of self-monitoring, thought to be a skill central to social interaction. Based on previous research which suggested that self-monitoring, as measured by the Self-Monitoring Scale (SMS), is a multidimensional construct, it was hypothesized that self-monitoring may actually be comprised of a number of more basic social skills. Correlations between standardized measures of basic social skills and three factors obtained from factor analysis of the SMS (Briggs, Cheek, & Buss, 1980) supported this conception. The elements of self-monitoring appear to be “charisma,” “performance,” and “social sensitivity.”  相似文献   
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County child poverty rates in the US: a spatial regression approach   总被引:2,自引:0,他引:2  
We apply methods of exploratory spatial data analysis (ESDA) and spatial regression analysis to examine intercounty variation in child poverty rates in the US. Such spatial analyses are important because regression models that exclude explicit specification of spatial effects, when they exist, can lead to inaccurate inferences about predictor variables. Using county-level data for 1990, we re-examine earlier published results [Friedman and Lichter (Popul Res Policy Rev 17:91–109, 1998)]. We find that formal tests for spatial autocorrelation among county child poverty rates confirm and quantify what is obvious from simple maps of such rates: the risk of a child living in poverty is not (spatially) a randomly distributed risk at the county level. Explicit acknowledgment of spatial effects in an explanatory regression model improves considerably the earlier published regression results, which did not take account of spatial autocorrelation. These improvements include: (1) the shifting of “wrong sign” parameters in the direction originally hypothesized by the authors, (2) a reduction of residual squared error, and (3) the elimination of any substantive residual spatial autocorrelation. While not without its own problems and some remaining ambiguities, this reanalysis is a convincing demonstration of the need for demographers and other social scientists to examine spatial autocorrelation in their data and to explicitly correct for spatial externalities, if indicated, when performing multiple regression analyses on variables that are spatially referenced. Substantively, the analysis improves the estimates of the joint effects of place-influences and family-influences on child poverty.
Paul R. VossEmail: Phone: +1-608-2629526Fax: +1-608-2626022
  相似文献   
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This study examined the association of 6-week maternal self-report depressive symptoms measured by the Center for Epidemiological Studies-Depression Scale (CES-D) with 4-month infant vocal affect qualities. This was part a larger study which examined many additional domains of both infant and maternal behavior. Infant vocal affect qualities were examined in 122 4-month old infants during face-to-face play in relation to 6-week maternal depressive symptoms. Mothers were categorized depressed (26.2%) based on a 16+ cutoff on the CES-D. Videotaped interactions were coded on a 1-s time basis for infant vocal affect qualities (high positive, neutral/positive, fuss/whimper, cry, angry protest and silent.) Infants of depressed mothers were more vocally activated in both positive and negative qualities. In addition, infants of depressed mothers were more vocally variable, specifically in and out of fuss/whimper, as well as more likely to change, rather than maintain vocal states.  相似文献   
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The effects of trading institutions on market efficiency and trading volume are examined. The trading institutions are computerized versions of continuous double auction and "clearinghouse" markets. Traders are experienced, profit-motivated undergraduates. The traded good is a financial asset whose monetary value is state- and trader type-contingent. Traders possess asymmetric private information on asset value. The results show that clearinghouse markets are as informationally efficient as double auction markets and almost as allocationally efficient; the double auction encourages greater trading volume but the clearinghouse provides greater depth; public orderflow information enhances double auction performance but impairs clearinghouse performance.  相似文献   
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Social studies continues to be marginalized in elementary grades, yet the C3 Framework and its Inquiry Arc offer possibilities for high-quality elementary social studies instruction. However, the C3 Framework requires that teachers possess an adequate understanding of how to implement inquiry within the various social studies disciplines, which we argue is an aspect of the pedagogical content knowledge necessary for effective elementary social studies instruction. This single-case study follows an elementary teacher through her use of the C3 Framework, Inquiry Arc, and a related curriculum approach called the Inquiry Design Model as she conceptualized, planned, and implemented inquiries in her fifth-grade classroom. By incorporating this new knowledge into her existing understanding of social studies pedagogy, as well as her knowledge of her students and specific educational context, the teacher was able to successfully navigate some of the challenges associated with implementing social studies inquiry in elementary classrooms.  相似文献   
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