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91.
Jeffrey L. Brudney Lucas C. P. M. Meijs Philine S. M. van Overbeeke 《Nonprofit management & leadership》2019,30(1):69-87
Scholars have devoted substantial attention to developing conditional models of volunteer administration and management, but no consensus surrounds the criteria underlying the different models or the rationale. The literature reveals a welter of possibilities but no clear choice. This study conceives the primary managerial challenges as securing access to and guiding volunteer energy into productive volunteering, and the volunteer administrator as the central actor in this process. Based on how volunteers are accessed and guided in their roles, we develop the Volunteer Stewardship Framework, which distinguishes volunteer administration according to two key dimensions: organizational access to volunteer energy (private resource vs. common pool) and guidance of volunteers (unitary vs. shared). Results of a survey of volunteer administration practitioners in the Netherlands show that respondents working under the four models emanating from the Framework recognize different elements of volunteer administration as “Very Important.” 相似文献
92.
This paper examines the use of a residual bootstrap for bias correction in machine learning regression methods. Accounting for bias is an important obstacle in recent efforts to develop statistical inference for machine learning. We demonstrate empirically that the proposed bootstrap bias correction can lead to substantial improvements in both bias and predictive accuracy. In the context of ensembles of trees, we show that this correction can be approximated at only double the cost of training the original ensemble. Our method is shown to improve test set accuracy over random forests by up to 70% on example problems from the UCI repository. 相似文献
93.
Women who are verbally abused by their intimate male partners suffer serious mental health consequences and often experience physical violence in their relationship. Despite the importance of studying verbal abuse, no previous research has investigated the specific content of the insults men use to derogate their partners. We present the development and initial validation of a new measure designed to assess the specific content of insults used by men against their intimate partners. In a preliminary study, we used feedback from battered women, along with a review of the relevant literature, to identify specific insults for inclusion in the Partner-Directed Insults Scale (PDIS). We administered the PDIS to a sample of United States participants (Study 1) and a sample of New Zealand participants (Study 2), allowing for a cross-national investigation of the specific insults that men use to derogate their partners. The results demonstrate the practical need for such a scale and provide evidence for the discriminant validity of the PDIS by documenting that men's use of insults predicts their use of controlling behaviors and physical violence. 相似文献
94.
The relationship between organizational factors and resident satisfaction with nursing home care and life 总被引:1,自引:1,他引:0
Lucas JA Levin CA Lowe TJ Robertson B Akincigil A Sambamoorthi U Bilder S Paek EK Crystal S 《Journal of aging & social policy》2007,19(2):125-151
We examined the relationships between nursing home (NH) resident satisfaction and NH organizational characteristics, while controlling for the effect of resident characteristics within facilities. We used a stratified, random sample of NHs (N = 72) from two states and a prescreened and randomized sample of 1496 residents. Data sources included resident interviews, an administrator survey, the Minimum Data Set (MDS), and the Online Survey, Certification and Reporting System (OSCAR). Using Hierarchical Linear Modeling (HLM) techniques, we found that non-chain affiliation, certified nursing assistant staffing, and provision of a family council had significant positive effects on total resident satisfaction. The presence of a special care unit was associated with lower levels of satisfaction. 相似文献
95.
This paper surveys research on the welfare cost of inflation. New estimates are provided, based on U.S. time series for 1900–94, interpreted in a variety of ways. It is estimated that the gain from reducing the annual inflation rate from 10 percent to zero is equivalent to an increase in real income of slightly less than one percent. Using aggregate evidence only, it may not be possible to estimate reliably the gains from reducing inflation further, to a rate consistent with zero nominal interest. 相似文献
96.
Lucas C. Coffman 《Economic inquiry》2017,55(1):409-424
Charitable donations are frequently raised by an intermediary, which accepts donations and subsequently sends the proceeds to the chairty—for example, a workplace campaign for United Way, a 5‐km walk for Susan G. Komen, or buying cookies from a local troop for the Girl Scouts. These fundraisers can greatly increase donations received by a given charity, but how do they affect what types of charities we support? This article shows intermediary fundraisers can make donors insensitive to differences in charity quality: Unattractive charities can receive the same financial support as an attractive charity. In a series of across‐subject experiments, when donations are framed as going directly to the charity, unattractive charities receive fewer and smaller contributions relative to attractive charities; however, when donations for the same charities are collected by (meaningless) intermediary fundraising campaigns, donations become indistinguishable across charities. The fundraising campaign does not affect donor recall of charity identity or evaluation of charity quality; it simply precludes donors from using these data in the donation decision. Follow‐up experiments suggest the results are driven by information overload. (JEL A13, C91, C93, D61, D64, H41) 相似文献
97.
Marcel?M.?LambrechtsEmail author Anne?Charmantier Virginie?Demeyrier Annick?Lucas Samuel?Perret Matthieu?Abouladzé Michel?Bonnet Coline?Canonne Virginie?Faucon Stéphanie?Grosset Ga?lle?le?Prado Frédéric?Lidon Thierry?Noell Pascal?Pagano Vincent?Perret Stéphane?Pouplard Rémy?Spitaliéry Cyril?Bernard Philippe?Perret Jacques?Blondel Arnaud?Grégoire 《Urban Ecosystems》2017,20(6):1181-1190
Investigations of urbanization effects on birds have focused mainly on breeding traits expressed after the nest-building stage (e.g. first-egg date, clutch size, breeding success, and offspring characteristics). Urban studies largely ignored how and why the aspects of nest building might be associated with the degree of urbanization. As urban environments are expected to present novel environmental changes relative to rural environments, it is important to evaluate how nest-building behavior is impacted by vegetation modifications associated with urbanization. To examine nest design in a Mediterranean city environment, we allowed urban great tits (Parus major) to breed in nest boxes in areas that differed in local vegetation cover. We found that different measures of nest size or mass were not associated with vegetation cover. In particular, nests located adjacent to streets with lower vegetation cover were not smaller or lighter than nests in parks with higher vegetation cover. Nests adjacent to streets contained more pine needles than nests in parks. In addition, in nests adjacent to streets, nests from boxes attached to pine trees contained more pine needles than nests from boxes attached to other trees. We suggest that urban-related alterations in vegetation cover do not directly impose physical limits on nest size in species that are opportunistic in the selection of nesting material. However, nest composition as reflected in the use of pine needles was clearly affected by habitat type and the planted tree species present, which implies that rapid habitat change impacts nest composition. We do not exclude that urbanization might impact other aspects of nest building behaviour not covered in our study (e.g. costs of searching for nest material), and that the strengths of the associations between urbanization and nest structures might differ among study populations or species. 相似文献
98.
The Day Reconstruction Method (DRM) is a useful tool for evaluating short-term changes in emotional experiences over a variety of daily situations. However, traditional method of collecting DRM data can be time-intensive for both researchers and participants. In this paper we provide evidence that a random-sampling approach to DRM assessment can provide useful data that are largely consistent with previous research that used the full version of the DRM. In a nationally representative sample of 2303 people, we demonstrate that (1) there is variability in emotional ratings of episodes that replicates what has been found in prior studies, (2) correlations with global measures are typically small in magnitude (<0.30), (3) correlations with personality are for the most part negligible, (4) correlations with global ratings of domain satisfaction are higher for domain-relevant situations, and (5) parents report more positive affect while providing care for their children when compared to other activities, and this effect can account for the observed differences in emotional experiences of parents and non-parents. 相似文献
99.
Pablo Lucas 《Journal of applied statistics》2019,46(4):737-753
This paper presents an alternative interpretation of an experimental public goods game dataset, particularly on the understanding of the observed antisocial behaviour phenomenon between subjects of a public goods experiment in different cities around the world. The anonymous nature of contributions and punishments in this experiment are taken into account to interpret results. This is done by analysing dynamic behaviour in terms of mean contributions across societies and their association with antisocial punishment. By taking into account the heterogeneity between the cities in which the public goods experiment has been performed, this analysis shows a contrasting interpretation. Instead of one trend across cities, two opposite trends are seen across different cities. In addition, we find that the presence of these trends to have an impact on the role of antisocial and pro-social behaviour in public goods games. When accounting for these trends, the antisocial and pro-social behaviour is found to have a significant role in Western societies. 相似文献
100.
Research has linked economic factors to relationship quality in the United States, primarily using cross‐sectional data. In the current study, 2 waves of the Panel Analysis of Intimate Relationships and Family Dynamics data (n = 2,937) were used to test the gendered association between economic factors and relationship satisfaction among young German couples. In contrast to U.S.‐based studies, the findings showed striking gender differences in the association between economic factors and relationship satisfaction for Germans. In cross‐sectional models, women's relationship satisfaction was positively associated with receiving government economic support, and men's satisfaction was positively associated with poverty status and negatively associated with being a breadwinner. Longitudinal models revealed that changes in poverty status are associated with women's satisfaction, but men's satisfaction remains tied to their role as family provider. These unexpected results suggest that men's satisfaction is positively associated with a more equal division of labor market activity between partners. 相似文献