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321.
Many real‐world planning and decision problems are far too uncertain, too variable, and too complicated to support realistic mathematical models. Nonetheless, we explain the usefulness, in these situations, of qualitative insights from mathematical decision theory. We demonstrate the integration of info‐gap robustness in decision problems in which surprise and ignorance are predominant and where personal and collective psychological factors are critical. We present practical guidelines for employing adaptable‐choice strategies as a proxy for robustness against uncertainty. These guidelines include being prepared for more surprises than we intuitively expect, retaining sufficiently many options to avoid premature closure and conflicts among preferences, and prioritizing outcomes that are steerable, whose consequences are observable, and that do not entail sunk costs, resource depletion, or high transition costs. We illustrate these concepts and guidelines with the example of the medical management of the 2003 SARS outbreak in Vietnam.  相似文献   
322.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - Formal volunteering is an important economic and social activity. In many countries, prevalence of volunteering is...  相似文献   
323.
A defining feature of U.K. welfare reform since 2010 has been the concerted move towards greater compulsion and sanctioning, which has been interpreted by some social policy scholars as punitive and cruel. In this article, we borrow concepts from criminology and sociology to develop new interpretations of welfare conditionality. Based on data from a major Economic and Social Research Council-funded qualitative longitudinal study (2014–2019), we document the suffering that unemployed claimants experienced because of harsh conditionality. We find that punitive welfare conditionality often caused symbolic and material suffering and sometimes had life-threatening effects. We argue that a wide range of suffering induced by welfare conditionality can be understood as ‘social abuse’, including the demoralisation of the futile job-search treadwheel and the self-administered surveillance of the Universal Jobmatch panopticon. We identify a range of active claimant responses to state perpetrated harm, including acquiescence, adaptation, resistance, and disengagement. We conclude that punitive post-2010 unemployment correction can be seen as a reinvention of failed historic forms of punishment for offenders.  相似文献   
324.
325.
Across Europe, hedgehogs (Erinaceus europaeus) appear to be in decline in both urban and rural landscapes. Current methods used to monitor urban populations are, however, associated with several potential limitations. In this study, we conducted hedgehog footprint-tunnel surveys in 219 residential gardens across Reading, UK between May–September in 2013 and/or 2014; gardens were surveyed for five continuous days. Single-species occupancy models were used to investigate factors influencing hedgehog occupancy and two-species occupancy models were used to estimate a species interaction factor (SIF) between hedgehogs and (a) badgers (Meles meles), (b) foxes (Vulpes vulpes) and (c) dogs (Canis familiaris). The five-day survey protocol was associated with a false-absence error rate of 0.1–0.4%, indicating that it was a reliable method for determining hedgehog presence; conversely, 34.7% of householders were not able to correctly predict hedgehog presence or absence. Hedgehogs were widely distributed across Reading, but detected in only 32–40% of gardens. None of the within-garden or outside-garden factors investigated significantly affected hedgehog occupancy in the single-species models, but the two-species models indicated that badgers (SIF?=?0.471?±?0.188), but not foxes (SIF?=?0.954?±?0.048) or dogs (SIF?=?0.780?±?0.228), negatively affected the presence of hedgehogs in gardens, although not significantly. Overall, footprint-tunnels represent a viable field method for monitoring urban hedgehog populations, however, other approaches are required to identify factors that make gardens “hedgehog friendly”.  相似文献   
326.
Bullying and cyberbullying have been studied extensively. In lesbian, gay, bisexual, and questioning (LGBQ) students, these phenomena seem to be overrepresented so that, although they share some common elements, homophobic bullying and cyberbullying could be considered as specific phenomena. This study analyzed homophobic bullying and cyberbullying, with the participation of 533 Spanish secondary school students aged from 12 to 20 (M = 14.9, SD = 1.7). The results showed that students identified as non-heterosexual experienced a higher level of being targeted with bullying and cyberbullying, almost one half of them declaring that they had been victimized and more than 20% cybervictimized. Many stated they had suffered both kinds of harassment. In addition, the prevalence of all kinds of bullying was higher among non-heterosexual students. Regression analyses showed that sexual orientation could be considered a risk factor for suffering these aggressions. We discuss results in relation to previous research and look at their practical implications.  相似文献   
327.
The aim of this paper is to compute and describe the conditions of an optimal employee ownership contract between an employer and an ambiguity‐averse employee. We then introduce ambiguity aversion in the baseline model of Aubert et al. (2014) using the multiple prior preferences of Gilboa and Schmeidler (1989) and its extension proposed by Maccheroni et al. (2006). This model offers solutions that reconcile labor and financial economics and behavioral economics research findings on employee ownership. The paper focuses on the most common situation where employee ownership has a positive impact on corporate performance, but can also be used as an entrenchment mechanism. We determine the optimal company stock contribution, which corresponds to a perfect subgame Nash equilibrium in the ambiguity framework. Using the framework of Gilboa and Schmeidler (1989), we show that the optimal ownership contract is increasing with respect to the lower bound of the return expectation in the case of a high level of effort, and decreasing with respect to the upper bound of the return expectation in the case of a low level of effort. In the framework of Maccheroni et al. (2006), we prove that if aversion to ambiguity is sufficiently high, then we find the same behavior as in the case of no ambiguity. (JEL G11, G32, G34, J33)  相似文献   
328.
This paper presents a systematic literature review on the impact of the neighborhood physical environment on mobility and social participation among people using mobility assistive technology (MAT). Peer-reviewed articles from eight databases published in French or English from 1990 to 2016 were searched. Thirty studies were included in this review. Factors related to neighborhood environmental features, mobility in transit, and accessibility of homes and public buildings influenced mobility and social participation of MAT users. The majority of reviewed studies combined different types of MAT, which made the interpretation of the results challenging. Few studies included walker, cane, and crutch users. Definitions of mobility and social participation lacked consistency and were often simplistic. Future empirical research needs to examine the impact of neighborhood physical environment factors separately for different MAT users. Causality and links between mobility and social participation of different MAT users at the neighborhood level should be further explored.  相似文献   
329.
We measure changes in community economic resilience (CER) across geo-locations in Australia between 2006 and 2011, a time span characterised by major natural and economic shocks. We build an index of potential CER that captures communities’ stocks of human, social, natural, physical and financial capitals, levels of economic diversity and accessibility to service centres. Using Census data and the ARIA index, we resort to principal component analysis to generate CER indexes at statistical area level 1, which is our community proxy. Our analysis of index values provides a number of useful insights. First, there was a statistically significant improvement over time in the overall CER index in all states and regions. Second, our CER measures improved at a different pace across regions and states while their rank remained mostly unchanged. Third, CER improved over time in social and physical capital and accessibility terms, but declined in human, natural, financial capital and diversity terms. Fourth, communities with a high economic diversity level reported higher capital stock except for natural capital, and communities with a low accessibility level had lower capital stock except for social and natural capital. Finally, CER has a long-term positive association with household income.  相似文献   
330.
This article explores the magazine advertising strategies and tactics used by health and beauty products to target middle-aged women. Advertisements found in the April 2013 issues of Shape, Fitness, and Women’s Health were analyzed using intersectionality to determine how these advertisements are presenting messages pertaining to age, gender, and sexuality and how these messages can “other” and marginalize certain identities. The findings suggest that advertisement strategies implement pseudoscience, heteronormativity, hegemonic beauty, and body ideals to establish an idealized version of middle-aged womanhood.  相似文献   
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