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Objective. This study determines if a relationship exists between a mother's employment and the activities in which her adolescent children participate after school. Methods. The author uses panel data from the 1996 Survey of Income and Program Participation with logit and fixed‐effects logit models to estimate this relationship. Results. Fixed‐effects models suggest a positive relationship between maternal employment and participation in lessons after school for the adolescent children of married women and also for those with at least a high school education. Maternal employment is also positively related to sports participation for the adolescent children of unmarried mothers. Conclusions. First, this article shows the importance of accounting for unobserved heterogeneity in inquiries into the links between maternal employment and adolescent outcomes. Second, it suggests that high‐socioeconomic‐status mothers may use after‐school activities, particularly lessons, as a form of after‐school care, while unmarried mothers may use sports.  相似文献   
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While dramatic instances of male aggression directed toward women, such as rape and wife battering, have been frequently studied, a more subtle form of male aggression—female harassment—has been investigated less often. In the present study, 50 women who had terminated relationships with males and then were harassed were interviewed. In general, the harassment lasted for about a year, and episodes which occurred on a daily basis consisted of calls, letters, visits to home or work, being followed, verbal threats, and physical aggression. For the most part, these aggressive actions were perceived as both threatening and disturbing. Findings indicated that assertive female strategies were not more effective in reducing harassment than more sex-role stereotyped passive and nonassertive responses to male aggression. In the second phase of this study a sample of college undergraduates was interviewed on the topic of harassment. Fifty-six percent of the women indicated that they had been harassed by men.My thanks to Lyn De Amicis and LaVome Robinson for their instructive and helpful comments.  相似文献   
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Average human life expectancies for the U.S. resident population are calculated using tabulated population and survival rate data. These life expectancies are recalculated assuming elimination of various types of motor vehicle fatalities using Fatal Accident Reporting System (FARS) data. The differences between the original and recalculated values provide estimates of life expectancy reductions due to the motor vehicle fatalities. These estimates are combined with prior work relating the likelihood of an occupant fatality to car mass, so that reductions in life expectancy are determined as a function of car mass. The estimates of life expectancy reductions are also used to determine the effect of seat belt use on life expectancy. The estimates, which are based on data for 1978, assume that survival rates remain unchanged. Estimates of the changes in life expectancy associated with switching from a large (1800 kg) car to a small (900 kg) car, and switching from not using to using a seat belt are presented as functions of the age at which an individual makes the switch.  相似文献   
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