RATIONING DISCRETIONARY ECONOMIC RESOURCES: A MULTIOBJECTIVE APPROACH

Prior research involving capital rationing has focused on capital budgeting issues: given a limited resource pool, which major long-lived fixed assets should be acquired? However, capital rationing can be extended to include not only new fixed-asset purchases but also expenditures for any other discretionary activity such as advertising, research and development, or maintenance. In this broader situation, measuring the contributions of certain discretionary activities to a single objective (e.g., maximize profits) or to multiple objectives often is hindered by a lack of reliable revenue estimates. This problem severely hampers the usefulness of traditional mathematical programming approaches to capital rationing. In this paper, we modify the usual multiobjective capital rationing procedures by treating each discretionary activity as an objective in itself. In this manner, we can mitigate the difficulties associated with revenue measurement problems and allow a decision maker systematically to explore the various trade-offs between competing discretionary investments.     

Determinanten der Sportaktivität und der Sportart im Lebenslauf

This paper investigates the impact of social class, occupational and family life-course, relocation, age, generation and gender on exercise. Longitudinal, life course-oriented analysis enables identification of the (often diverse) conditions for (re-)uptake and discontinuation of exercise. The paper takes a detailed look at different types of exercise, enabling exploration of the various motivating influences and barriers involved. The database is a retrospective representative survey of the 50 to 70 year old population of Baden-Württemberg, Germany. The results show that higher educational qualifications are associated with higher levels of exercise, whereas manual labor and – among women – childcare are associated with lower levels of exercise. With respect to the impact of education, cultural rather than economic capital seems to be the determining influence. Other factors – (un-)employment, partnership, relocation, age and cohort – tend to have more complex effects on exercise. Though being a member of the workforce reduces the likelihood of starting to exercise, it also reduces the likelihood of dropping out. Though partnership encourages the dissemination of exercise, initiation of a relationship is also associated with a higher incidence of discontinuation. Relocation prompts both initiation and discontinuation of exercise. Surprisingly, up to the over-50 age group, increasing age is associated with an increased prevalence of physical activity, especially among women. The results of analysis of social differences in terms of types of physical activity can be used in health programs to provide scientifically founded recommendations for the promotion of specific types of physical activity for lower educational groups, seniors, and other social groups whose lifestyle tends to be inactive.     

Views of Intimate Partner Violence in Same‐ and Opposite‐Sex Relationships

Attitudes toward same‐sex intimate relationships and intimate partner violence (IPV) are changing. Little research, however, has examined norms about IPV in same‐sex relationships. Using a fractional factorial (experimental vignette) design, we conducted random‐digit‐dialed interviews in four languages with 3,679 community‐residing adults. Multivariate analyses of responses to 14,734 vignettes suggest that IPV against gay male, lesbian, and heterosexual women is more likely than that against heterosexual men to be considered illegal and that it should be illegal, police called, and a stay‐away order issued. Regardless of gender and sexual orientation, the type of abuse and whether a weapon was displayed are the strongest predictors of respondents’ judgments about whether a behavior is illegal and merits a range of societal interventions.     

Social Capital in Emerging Democracies

Theorists have linked the creation of social capital to the development of the kind of robust civil society that underwrites the well formed and stable democracy. This understanding raises the problem of what is social capital in specific national contexts. A critical issue is whether and to what extent a model of social capital moulded to the EuroAmerican experience is applicable to the new democracies. Three arguments are made in the context of a review of the works of Putnam and Touraine. First, the question of social capital foundationally concerns not only the production of institutions and values but the conditions of production. Analysis thus needs to grasp not only the specifically social process of its creation, distribution, and institutionalization, but the political culture and economy that serve as its foundation. Second, theories of social capital created in the context of nation-state based production-centered political economy do not capture what is going on in an increasingly globalized and circulatory political economy. And third, theories of social capital centered on the United States and Europe are only partially applicable to the emerging democracies of Africa and the postcolony generally.

Evaluating the Problem Gambling Severity Index

A large, integrated survey data set provided by the Ontario Problem Gambling Centre was used to investigate psychometric properties of the Problem Gambling Severity Index (PGSI). This nine-item self-report instrument was designed to measure a single, problem gambling construct. Unlike its nearest competitor—the South Oaks Gambling Screen (SOGS)—the PGSI was designed specifically for use with a general population rather than in a clinical context. The present analyses demonstrated that the PGSI does assess a single, underlying, factor, but that this is complicated by different, multiple factor structures for respondents with differing levels of problem gambling severity. The PGSI also demonstrated small to moderate correlations with measures of gambling frequency and faulty cognitions. Overall, the PGSI presents a viable alternative to the SOGS for assessing degrees of problem gambling severity in a non-clinical context.

Toward increasing avian diversity: urban wildscapes programs

Residential development in urban and suburban settings is a major cause of habitat change affecting avian communities. The effects from land-clearing prior to initiation of construction followed by landscaping focused on traditional aesthetics has reduced habitat diversity at multiple levels. These residential developments generally emphasize the use of ornamental, nonindigenous vegetation with little to no concern for native species and natural vegetation parameters. As a result, avian community composition and diversity is changed. We compared avian communities at three sites in Bexar County, Texas; two residential neighborhoods in the city of San Antonio and an unincorporated undeveloped site, Government Canyon State Natural Area. The residential neighborhoods were a Texas Parks and Wildlife Department certified wildscapes development and a traditionally developed neighborhood. Bird abundance and species richness in the neighborhoods were greater than at Government Canyon State Natural Area (P < 0.01), but no differences existed between the neighborhoods. Bird diversity was greatest at the wildscapes neighborhood (P < 0.01). Further, bird diversity did not differ between the traditional neighborhood and the natural area. Evenness differed among sites (P = 0.006) with the natural area having the greatest value. Bird diversity measures correlated with woody plant density and vertical cover (r = 0.358 to 0.673, P < 0.05) at residential sites. Residential areas incorporating natural landscapes into their design attracted a greater variety of birds than traditionally landscaped residential areas.     

But do they speak it? The intergenerational transmission of home-country language in migrant families in France

To what extent can immigrant parents transmit their home-country language to their children? Drawing on a recent national sample of children of immigrants in France, this paper examines the effects of parental language socialisation and exposure to the parental home country on language ability and language practices of their adult children. The data show that parental efforts at transmitting the language are necessary, but ultimately insufficient especially when it comes to language practices. Almost none of those who grew up without or with only minimal exposure to the parental home-country language use it. But even among those who had extensive exposure only a minority end up using it in their daily lives. The only domain where the second-generation uses the parental home-country language to a non-trivial degree is in the family context. In addition parental resources can have contradictory effects. While successful transmission of home-country language in the immigrant context requires significant resources, those parents who have these resources are less likely to try to pass on their language.     

Collegiate Recovery Communities Programs: What Do We Know and What Do We Need to Know?

As the broad construct of recovery increasingly guides addiction services and policy, federal agencies have called for the expansion of peer-driven recovery support services. The high prevalence of substance use and abuse in colleges and universities in the United States constitutes a significant obstacle to pursuing an education for the unknown number of youths who have attained remission from substance use dependence. Collegiate recovery programs (CRPs) are an innovative and growing model of peer-driven recovery support delivered on college campuses. Although no systematic research has examined CRPs, available site-level records suggest encouraging outcomes: low relapse rates and above-average academic achievement. The number of CRPs nationwide is growing, but there is a noticeable lack of data on the model, its students, and their outcomes. We review the literature supporting the need for the expansion of CRPs, present information on the diversity of CRP services, and outline key areas where research is needed.     

现代中国多民族国家策略——“民族”识别的历史动因探源

以云南地区的多元和多样性表现为例探讨现代中国多民族国家的策略和历史境遇。通过梳理中国历史上民族国家策略的历史进程,发现中国近现代历史中国民党和共产党在民族国家策略上的差异,以及现代中国“民族”识别的出现,是中国深远的历史情境中的一个必然结果,亦是中国共产党建立现代国家与各民族达成共识的基本路径。