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981.
The widespread availability of voter files has improved the study of participation in American politics, but the lack of comprehensive data on nonregistrants creates difficult inferential issues. Most notably, observational studies that examine turnout rates among registrants often implicitly condition on registration, a posttreatment variable that can induce bias if the treatment of interest also affects the likelihood of registration. We introduce a sensitivity analysis to assess the potential bias induced by this problem, which we call differential registration bias. Our approach is most helpful for studies that estimate turnout among registrants using posttreatment registration data, but it is also valuable for studies that estimate turnout among the voting‐eligible population using secondary sources. We illustrate our approach with two studies of voting eligibility effects on subsequent turnout among young voters. In both cases, eligibility appears to decrease turnout, but these effects are found to be highly sensitive to differential registration bias.  相似文献   
982.
983.
Is Trade Policy for Sale? Congressional Voting on Recent Trade Bills   总被引:1,自引:0,他引:1  
This paper examines voting by U.S. Representatives onthe North American Free Trade Agreement, the UruguayRound Agreement, and most-favored nation status forChina. Using recent political economy models of tradepolicy to formulate an empirical specification ofcongressional voting behavior, we find evidence thatcampaign contributions influenced legislators' voteson the NAFTA and Uruguay Round bills. Labor groupcontributions were associated with votes against freertrade while business contributions were associatedwith votes in favor of freer trade. Economicconditions in each member's district as well as thebroad policy views of the legislators also affectedrepresentatives' voting decisions.  相似文献   
984.
In recent discussions regarding concerns about the academic achievement of US students, educational policy makers have suggested the implementation of certain teacher policies. To address the limited empirical research on the putative educational impact of such policies, this study used multilevel structural equation models to investigate the longitudinal associations between teacher evaluation and reward policies, and student mathematics achievement and dropout with a national sample of students (n = 7,779) attending one of 431 public high schools. The student sample included an equal number of boys and girls averaging 16 years of age, and included a White (53%) majority. This study examined whether associations between teacher policies and student achievement were mediated by the teacher–student relationship climate. Results of this study were threefold. First, teacher evaluation policies that allowed students to evaluate their teachers were associated with more positive student reports of the classroom teaching climate. Second, schools with teacher reward policies that included assigning higher performing teachers with higher performing students had a negative association with student perceptions of the teaching climate. Lastly, schools with better student perceptions of the teaching climate were associated with lower student dropout rates by students’ senior year. These findings are discussed in light of their educational policy implications.  相似文献   
985.
Relatively little is known in terms of the relationship between religiosity profiles and adolescents’ involvement in substance use, violence, and delinquency. Using a diverse sample of 17,705 (49?% female) adolescents from the 2008 National Survey on Drug Use and Health, latent profile analysis and multinomial regression are employed to examine the relationships between latent religiosity classes and substance use, violence, and delinquency. Results revealed a five class solution. Classes were identified as religiously disengaged (10.76?%), religiously infrequent (23.59?%), privately religious (6.55?%), religious regulars (40.85?%), and religiously devoted (18.25?%). Membership in the religiously devoted class was associated with the decreased likelihood of participation in a variety of substance use behaviors as well as decreases in the likelihood of fighting and theft. To a lesser extent, membership in the religious regulars class was also associated with the decreased likelihood of substance use and fighting. However, membership in the religiously infrequent and privately religious classes was only associated with the decreased likelihood of marijuana use. Findings suggest that private religiosity alone does not serve to buffer youth effectively against involvement in problem behavior, but rather that it is the combination of intrinsic and extrinsic adolescent religiosity factors that is associated with participation in fewer problem behaviors.  相似文献   
986.
This study examined parental aspirations for their children’s educational attainment in relation to ethnicity (African American, Asian, Caucasian, Hispanic), parental education, children’s academic performance, and parental perceptions of the quality and climate of their children’s school with a sample of 13,577 middle and high school parents. All parents had relatively high educational aspirations for their children, and within each ethnic subgroup, parental education and children’s academic performance were significantly and positively related to parental aspirations. However, moderating effects were found such that Caucasian parents with lower levels of education had significantly lower educational aspirations for their children than did parents of other ethnicities with similar low levels of education. Although the strength of the relationship between parental perceptions of school-related factors and parental aspirations for their children’s educational attainment was not strong, it was most predictive of non-Caucasian parental aspirations for their children.
Christopher SperaEmail:
  相似文献   
987.
Actual-ideal discrepancies are associated with adolescent emotional distress and there is evidence that the size of discrepancies matters. However, the direction of discrepancies has not been examined, perhaps due to limitations of widely used self-discrepancy measures. Two hundred and twelve 7th, 9th and 11th grade students (59% female) in a public school in Jamaica described their actual and ideal selves in several different domains—friendship, dating, schoolwork, family, sports, and religion/spirituality—using a Pie measure. Students also completed measures of depressive symptoms, self-esteem, and academic achievement. Discrepancies favoring the ideal self and those favoring the actual self were linked to depressive symptoms, low self-esteem, and poor school grades in the domains of friendship, dating, and schoolwork. Effects were stronger among older adolescents than among younger adolescents. Theories of actual/ideal self-discrepancies have focused on problems arising when the ideal self overshadows the actual self; however, the present study finds that self-discrepancies, regardless of their direction, are a liability. Implications for self-discrepancy measurement, adolescent development, and clinical practice are discussed.  相似文献   
988.
Abstract

This paper reviews the literature on taxation of the informal economy, taking stock of key debates and drawing attention to recent innovations. Conventionally, the debate on whether to tax has frequently focused on the limited revenue potential, high cost of collection, and potentially adverse impact on small firms. Recent arguments have increasingly emphasised the more indirect benefits of informal taxation in relation to economic growth, broader tax compliance, and governance. More research is needed, we argue, into the relevant costs and benefits for all, including quasi-voluntary compliance, political and administrative incentives for reform, and citizen-state bargaining over taxation.  相似文献   
989.
The U.S. war on Al Qaeda is well into its second decade—why has this particular conflict been so difficult to end? This article argues it is not due to the strategic acumen of Al Qaeda, but because of the problems intrinsic to relying on war as the framework for U.S. counterterrorism policy. The normal means of ending wars are complicated with a terrorist enemy and at odds with strategies that have historically had success at the end stages of counterterror campaigns. Continuing along the current path risks an ongoing war the United States will likely neither win nor fully end.  相似文献   
990.
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