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651.
We estimate how parenthood affects hourly wages using panel data for Norwegian employees in the years 1997–2007. Though smaller than for most other OECD countries, we find substantial wage penalties to motherhood, ranging from a 1.2 % wage reduction for women with lower secondary education to 4.9 % for women with more than four years of higher education. Human capital measures such as work experience and paid parental leave do not explain the wage penalties, indicating that in the Norwegian institutional context, mothers are protected from adverse wage effects due to career breaks. We do however find large heterogeneity in the effects, with the largest penalties for mothers working full time and in the private sector. Contrary to most studies using US data and to previous research from Norway, we find a small wage penalty also to fatherhood. Also for men, the penalty is greater for those who work full time and in the private sector. A substantial share of the fatherhood wage penalty is explained by paternity leave.  相似文献   
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Adolescents’ sexual and romantic relationship experiences are multidimensional but often studied as single constructs. Thus, it is not clear how different patterns of sexual and relationship experience may interact to differentially predict later outcomes. In this study we used latent class analysis to model patterns (latent classes) of adolescent sexual and romantic experiences, and then examined how these classes were associated with young adult sexual health and relationship outcomes in data from the National Longitudinal Study of Adolescent to Adult Health (Add Health). We identified six adolescent relationship classes: No Relationship (33%), Waiting (22%), Intimate (38%), Private (3%), Low Involvement (3%), and Physical (2%). Adolescents in the Waiting and Intimate classes were more likely to have married by young adulthood than those in other classes, and those in the Physical class had a greater number of sexual partners and higher rates of sexually transmitted infections (STIs). Some gender differences were found; for example, women in the Low-Involvement and Physical classes in adolescence had average or high odds of marriage, whereas men in these classes had relatively low odds of marriage. Our findings identify more and less normative patterns of romantic and sexual experiences in late adolescence and elucidate associations between adolescent experiences and adult outcomes.  相似文献   
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This study examined the relationships of mental health issues and sexual orientation in a national sample of college students. Using the Fall 2009 American College Health Association-National College Health Assessment, responses from heterosexual, gay, lesbian, bisexual, and unsure students (N = 27,454) relating to mental health issues and impact of these issues on academics were examined. The findings indicate that gay, lesbian, bisexual, and unsure students consistently reported higher levels of mental health issues and a more frequent impact on academics because of these issues than heterosexual students. Bisexuals frequently reported higher levels than students identifying as gay, lesbian, and unsure.  相似文献   
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The following viewpoint from PSI and EFSPI regarding the current level of statistical resource in the European regulatory agencies was first presented as a position paper to a meeting of the EU Heads of Agencies in July 2009, and was endorsed by EFPIA. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
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