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11.
Social welfare functions when preferences are convex,strictly monotonic,and continuous 总被引:1,自引:0,他引:1
The paper shows that if the class of admissible preference orderings is restricted in a manner appropriate for economic and political models, then Arrow's impossibility theorem for social welfare functions continues to be valid. Specifically if the space of alternatives is R + n , n ≥ 3, where each dimension represents a different public good and if each person's preferences are restricted to be convex, continuous, and strictly monotonic, then no social welfare function exists that satisfies unanimity, independence of irrelevant alternatives, and nondictatorship. 相似文献
12.
Resource decision making for the Department of Defense (DOD) is one of the most challenging tasks in all of public financial management. DOD coordinates national security threat assessment, long‐ and intermediate‐range planning and programming with annual budget formulation and execution. Between 2001 and 2004, Defense Secretary Donald Rumsfeld changed the system significantly, simplifying, and synchronizing it with presidential terms of office. We assess Planning, Programming, Budgeting System (PPBS) reform through application of applied budget theory. We review system evolution, document recent reforms, explain why change was necessary, and assess implementation feasibility. Only preliminary evaluation is possible because change implementation will require five or more years. 相似文献
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This article seeks to answer two research questions: does public-private partnerships (ppp) live up to its promises to government? How do contractual arrangements affect ppp performance? We propose a conceptual framework to evaluate ppp performance by comparing actual project outcomes to government goals in initiating the partnerships, and to explore how a set of contractual arrangements affect the ppp performance on each identified goal. The framework is applied to a comparative case analysis of highway ppp experiences in the commonwealth of virginia (us) since the 1990s. The results show that these ppp cases were successful in accessing innovative finance, but their performance was mixed on reducing construction risk and transferring revenue risk. Generally improved over time with later projects, the ppp performance was affected not only by interaction among contractual arrangements –private partner selection, financial arrangements, role division, risk allocation, and project characteristics – but also by authorizing and supportive legislation in the policy domain. 相似文献
15.
Diana Z. O'Brien 《Journal of Elections, Public Opinion & Parties》2019,29(4):465-489
ABSTRACTDo female leaders affect voters' perceptions of political parties' placement on the left-right spectrum? Using public opinion data on 269 parties in 35 countries between 1976 and 2016, I show that female-led parties are perceived as more moderate than male-led organizations, even when accounting for voters' prior beliefs about the party and the organization's stated policy positions. I then demonstrate that these results cannot be explained by the policy platforms authored by male- and female-led parties. The electoral manifestos produced by female-headed organizations are neither more left- leaning nor more moderate than those authored under male leaders. Together, these results provide important insights concerning citizens' (mis)perceptions of parties' ideological positions, party leaders' effects on voters behavior, the importance of gender stereotypes in politics, and the policy consequences of women's increased access to power. 相似文献
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This article considers the immediate forces influencing China’s food system and food security. By immediate is meant events of the reform period, from the late 1970s to 2008. It begins by asking the question that has preoccupied specialists since the publication of Lester Brown’s Who Will Feed China? in 1995: How much arable land does China have? Is that land area sufficient to insure grain sufficiency? To insure food security? The article focuses on the human pressures on the food production environment, and then treats the effects of socioeconomic change: land, air, and water degradation. The core of the article examines six responses of the state to both perceived and actual environmental stressors: policy restricting arable land conversion, China’s one-child policy, investment in irrigation systems, the South–North Water Diversion Project, large-scale afforestation and reforestation campaigns, and the program to convert marginal agricultural lands to forests and grasslands. 相似文献
18.
Youth who participate in service activities differ from those who do not on a number of key demographic characteristics like socio-economic status and other indicators of risk; and most studies demonstrating positive outcomes among service participants employ small non-representative samples. Thus, there is little evidence as to whether the outcomes associated with service participation are similar among students with varying levels of risk. The National Household Education Survey of 1999, a large nationally representative cross-sectional data set that focused on community service, was analyzed to investigate associations between the risk status of 4,306 adolescent students (50.2% female; 63.3% European American, M age?=?15.9), their participation in community service, and their academic adjustment, behavioral problems, and civic knowledge. Because adolescents who participate in service differ from those who do not with respect to demographic characteristics, propensity score analyses were used to correct for potential selection bias in the examination of these relationships. Analyses tested competing theoretical models of service??protective versus compensatory??among students at varying levels of risk, and suggested that service acts as a compensatory factor with respect to academic, behavioral, and civic outcomes. Propensity score analyses revealed patterns suggesting that, in some cases, students with certain demographic profiles that are themselves related to the likelihood of service participation may benefit from service participation more than others. Findings are discussed in terms of their significance for adolescent development, for planning service programs, and for educational policy. 相似文献
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Schnavia Smith Hatcher Dione Moultrie King Sara Z. Evans LaTonya M. Summers 《Child & Youth Services》2017,38(4):302-317
This study investigated the association between risky sexual behavior and drug use among female youth sentenced to a regional juvenile detention center. Preincarceration behavioral health risk data were collected from a modified version of the Youth Risk Behaviors Surveillance Survey completed by respondents. Almost all of the 105 participants had been detained before their current sentence, more than half of them were sexually active before the age of 13, and 70% had smoked marijuana or drank alcohol by age 14. A regression analysis was conducted to determine if preincarceration sexual health risk behaviors were significant enough to predict continued risk behaviors related to pregnancy, disease prevention, and substance use. Findings indicate that youth detention-based prevention programs should emphasize sexual and drug-risk reduction strategies as a means to reduce risky behaviors for this population. 相似文献
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