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911.
Numerous theories have been put forward for the high and continuing levels of gender segregation in science, technology, engineering, and mathematics (STEM) fields, but research has not systematically examined the extent to which these theories for the gender gap are consistent with actual trends. Using both administrative data and four separate longitudinal studies sponsored by the U.S. Department of Education’s National Center for Education Statistics (NCES), we evaluate several prominent explanations for the persisting gender gap in STEM fields related to mathematics performance and background and general life goals, and find that none of them are empirically satisfactory. Instead, we suggest that the structure of majors and their linkages to professional training and careers may combine with gender differences in educational goals to influence the persisting gender gap in STEM fields. An analysis of gendered career aspirations, course-taking patterns, and pathways to medical and law school supports this explanation. 相似文献
912.
Publicly traded firms in the US typically determine C.E.O. compensation by benchmarking the pay of their C.E.O.s against the pay of C.E.O.s in “peer” firms. Consequently, executive compensation is influenced not only by firm-level characteristics, but also by the selection and actions of the firm’s immediate peers as well as by the structure of the executive compensation network overall. Analyzing compensation peer group choices made by the same 1183 firms for F.Y. 2007, 2008 and 2009, we find that while the typical compensation peer is similar in size and industry to the firm that chose it, deviations from this norm are common, especially among larger firms, and tend to be towards larger firms with better paid CEOs. Further analysis shows that firms who pay CEOs well relative to the pay that would be predicted from their revenues, return on assets, and industry tend to have greater aspiration bias in their group of named peers. 相似文献
913.
We model an interaction between an informed sender and an uninformed receiver. As in the classic cheap talk setup, the informed player sends a message to an uninformed receiver who is to take an action which affects the payoffs of both players. However, in our model, the sender can communicate only through the use of discrete messages which are ordered by the cost incurred by the sender. We characterize the resulting equilibria without refining out-of-equilibrium beliefs. Subsequently, we apply an adapted version of the no incentive to separate (NITS) condition to our model. We show that if the sender and receiver have aligned preferences regarding the action of the receiver, then NITS only admits the equilibrium with the largest possible number of induced actions. When the preferences between players are not aligned, we show that NITS does not guarantee uniqueness, and we provide an example where an increase in communication costs can improve communication. As we show, this improvement can occur to such an extent that the equilibrium outperforms the Goltsman et al. (J Econ Theory 144:1397–1420, 2009) upper bound for receiver’s payoffs in mediated communication. 相似文献
914.
Objectives: The purpose of this study is to explore barriers to the use, maintenance, and expansion of social supports in older adult methadone clients. Methods: The data for this analysis were derived from a qualitative study of the needs of aging methadone clients. Data were collected through face-to-face interviews with 24 methadone clients over the age of 50. Results: A lack of trust was identified as a principal barrier to the use, maintenance, and expansion of the social supports of older adult methadone clients. Causes of this mistrust include issues associated with aging, past traumatic experiences, and difficult personal relationships. Implications: These findings imply that addressing the issue of self isolation and recognizing the reason older adult methadone clients engage in this behavior is a key element in getting this specific population to use, maintain, and foster healthy social supports. A common phrase echoed throughout the interviews is that a person cannot trust anybody. Because of this mistrust, some clients keep to themselves by electing to self-isolate and decline to use, maintain, or foster new relationships. As a result, these individuals are less likely foster and/or engage in healthy social relationships, which are a key component of substance abuse treatment and abstinence maintenance. 相似文献
915.
The present study investigated the mediating effects of job satisfaction on the relationship between work–family conflict and psychological strain among Australian social workers. Data for the study were collected by an online survey of the membership of the Australian Association of Social Workers, yielding 439 usable responses. The results provide evidence that job satisfaction mediates the relationship between work-to-family conflict, family-to-work conflict and psychological strain. These findings contribute significantly to the social work literature on work–family interface and confirm the importance of developing and targeting not only strategies that aim to reduce work–family conflict, but also those that aim to increase job satisfaction among social workers. 相似文献
916.
Carry van Lieshout Harry Smith Piero Montebruno Robert J. Bennett 《Social history》2013,38(4):440-468
ABSTRACTThis article offers a new perspective on what it meant to be a business proprietor in Victorian Britain. Based on individual census records, it provides an overview of the full population of female business proprietors in England and Wales between 1851 and 1911. These census data show that around 30% of the total business population was female, a considerably higher estimate than the current literature suggests. Female entrepreneurship was not a uniform experience. Certain demographics clustered in specific trades and within those sectors employers and own-account proprietors had strikingly different age, marital status and household profiles. A woman’s life cycle event such as marriage, motherhood and widowhood played an important role in her decision whether to work, the work available to her and the entrepreneurial choices she could make. While marriage and motherhood removed women from the labour force, they had less of an effect on their levels of entrepreneurship. Women who had young children were more entrepreneurial than those who had none, and entrepreneurship rates rose with the arrival of one child and continued to rise the more children were added to the family. 相似文献
917.
ABSTRACTThe Society for Adolescent Health and Medicine emphasizes the need for research to focus on the health outcomes of sexual minority youth (i.e., lesbian, gay, bisexual, transgender, queer). However, sexual minority youth (SMY) are often less willing to participate in research studies where parental consent is required due to potential victimization and discrimination. This is a major concern given that more research is needed to understand the health needs of this population, especially in terms of suicide, substance use, and HIV prevention. The National Suicide Prevention Strategy classifies SMY as a high-risk group, emphasizing the need to explore suicide risks (along with other health outcomes) among this group. However, this high-risk classification also increases the safeguards necessary to conduct research with this population. Many researchers have argued for waivers of parental consent, but such waivers present with several ethical implications. This article discusses ethical principles, risks, benefits, safeguards, and potential alternative approaches to waivers of parental consent for SMY. We conclude by emphasizing the need for policy changes to allow parental consent waivers for research targeting SMY. 相似文献
918.
In a series of articles, Mondak and colleagues argue that theconventional way of measuring political knowledge in surveysis flawed. Personality related "propensity to guess" underestimatesthe level of political knowledge in the population and distortsestimates of between group differences, when a DK alternativeis offered. This has led Mondak to recommend the use of closed-endeditems on which DKs are not explicitly offered, following bestpractice in the field of educational testing. In this article,we present the results of an experimental study which callsinto question the wisdom of this approach. Our results showlittle evidence of partial knowledge concealed within DK responses;when people who initially select a DK alternative are subsequentlyasked to provide a "best guess," they fare statistically nobetter than chance. We conclude that opinion researchers shouldbe cautious about adopting Mondak's recommendations for thedesign of political knowledge items in surveys. Received for publication February 22, 2005. Revision received October 19, 2006. Accepted for publication October 25, 2006. 相似文献
919.
920.
Smith LE 《Journal of American college health : J of ACH》2008,56(6):698-700
Cardiovascular disease is the leading cause of death for men and women in the United States. Risk factors and health behaviors combine over time to contribute to the disease process. College communities provide a unique environment for health promotion, risk reduction, and primary intervention. Heart health should be an integral part of college health. 相似文献