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201.
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Elizabeth Maggie Penn 《Social Choice and Welfare》2006,27(1):83-87
Different definitions of the uncovered set are commonly, and often interchangeably, used in the literature. If we assume individual preferences are strict over all alternatives, these definitions are equivalent. However, if one or more voters are indifferent between alternatives these definitions may not yield the same uncovered set. This note examines how these definitions differ in a distributive setting, where each voter can be indifferent between any number of alternatives. I show that, defined one way, the uncovered set is equal to the set of Pareto allocations that give over half the voters a strictly positive payoff, while alternate definitions yield an uncovered set that is equal to the entire Pareto set. These results highlight a small error in Epstein (Soc Choice Welf 15, 81–93, 1998) in which the author characterizes the uncovered set for a different definition of covering than claimed. 相似文献
203.
This paper describes the effectiveness of six juvenile diversion programs in the metropolitan area of Denver, Colorado. Program success was measured by recidivism reduction. However, by using a one-for-one statistical client-baseline matching method and a variable definition of recidivism, we managed to overcome drawbacks that often occur when using recidivism as an outcome indicator. Together, program participants showed a 26% reduction in recidivism rate over that of a matched baseline sample. Although four of the six programs studied accounted for the overall success rate, we explain why two of the programs showed no significant reductions in recidivism rates. 相似文献
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The Impact of Occupational Sex Segregation on Family Businesses: The Case of American Harness Racing
Elizabeth A. Larsen 《Gender, Work and Organization》2006,13(4):359-382
Previous research on occupational sex segregation agrees that the workplace is not an isolated world but instead influences, and is influenced by, other spheres of social life. Identifying specific social factors both internal and external to the workplace, and how these may interact, can provide deeper insights into how occupational sex segregation is created and maintained. This study focuses on individual family businesses in American harness horse racing, a previously unexamined and highly sex‐segregated industry, and provides insights in how vertical and horizontal sex segregation may develop in family businesses. The findings show how the belief that married couples cannot debate and resolve work‐related conflicts without undue strain on their personal relationship leads some of these couples to organize their work into gendered tasks and workspaces, contributing to the maintenance of vertical segregation in the trainer position. The implications for segregation of other solutions, such as operating separate businesses, or working for another business, are less clear. 相似文献
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Wendy Kliewer Lenn Murrelle Elizabeth Prom Melva Ramirez Patricia Obando Luis Sandi Maria Del Carmen Karenkeris 《Journal of research on adolescence》2006,16(3):455-478
Associations between witnessing serious violence and drug use, and the protective influences of family cohesion and parental monitoring, were investigated among 9,840 adolescents (50.5% female, M age=15.29 years, SD=1.76) living in Panama and Costa Rica. After accounting for demographics and parental and sibling substance use, witnessing serious violence was associated with greater drunkenness, tobacco use, number of illicit drugs used, and problems with drugs and alcohol. In every analysis, exposure to violence was associated with more drug use, while family cohesion and parental monitoring attenuated risk. Further, family cohesion and parental monitoring exerted a protective‐stabilizing effect on number of illicit drugs used and on problems with drugs and alcohol. There were few interactions with age. Implications for prevention are discussed. 相似文献
210.
Objective. Since the early 1970s, income inequality in the United States has increased dramatically. We examine the impact of state lotteries on income inequality in the American states from 1976–1995. Methods. We use cross‐sectional time‐series data to evaluate the effect of lotteries as well as those of other state tax policies, redistributive programs, and demographic factors on income inequality. Results. We find that state lotteries foster income concentration. Ceteris paribus, states with lotteries have higher levels of income inequality than those states without a lottery. We also find that additional demographic and policy factors have an impact on income inequality in the states. Conclusions. One of the most important policy‐oriented determinants of income inequality is the lottery and a significant portion of the increase in income inequality over our two‐decade time period is attributable to the increasing prevalence and popularity of state lotteries. 相似文献