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排序方式: 共有112条查询结果,搜索用时 15 毫秒
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Craig Morton Thomas Martin Budd Gillian Harrison Giulio Mattioli 《International Journal of Sustainable Transportation》2017,11(7):493-506
A mixture of potentially significant changes in technology, commercial structures, and social practices is currently entering the automobility system. These changes have the potential to combine together and lead to a substantial shift in the manner in which society fuels, owns, and makes use of its cars. This paper reports a research project that made use of focus groups to examine the narratives of British transport professionals concerning forthcoming developments in the automobility system. Specific attention was given to what the expectations for future change in automobility are, if these changes will likely lead to a transition toward a more sustainable system and the manner in which a transition of this nature could be facilitated. The oral testimony offered during the focus groups has been assessed qualitatively using thematic analysis. The results suggest that there is a commonly held view that the automobility system is entering a stage of flux, which may lead to considerable changes in system configuration. However, the attainment of a sustainable transition for the system will likely be inhibited by a series of institutional, societal, and physical barriers, which may restrict system developments. 相似文献
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Michael T. Rauh 《The Rand journal of economics》2014,45(3):533-552
We develop a theory of incentives, wages, and employment in the context of team production. A central insight is that specialization and division of labor not only improve productivity but also increase effort and the sensitivity of effort to incentives under moral hazard. We show that employment and incentives are complements for the principal when the positive effects of specialization and division of labor outweigh the increase in risk associated with additional employment and are substitutes otherwise. We provide new characterizations of the partnership, the firm, and the role of the budget‐breaker that are quite different from the classical literature. 相似文献
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The demographic change and its consequences forces citizens of Germany to realign towards private insurance products. This decision should be based on structured analyses. Most recent studies were inconclusive regarding this decision.As investments are commonly compared using average developments of the underlying, the possibility to switch the underlying during the duration of the investment, they are not represented accordingly and therefore bias the results of the calculation. We perform a thorough simulation analysis to compare two competing investments for retirement provisions while respecting additional costs and tax implications of switching.Without any switching the evaluation of other studies is generally verified (pure investment beats insurance product). But as soon as switching is implemented the tax advantage of insurance products is overcompensating the cost advantage of a pure investment solution. Further research should aim in this direction. 相似文献
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Giulio Diale 《Decisions in Economics and Finance》1978,1(2):33-50
Nella prima parte si considera il problema della enumerazione delle partizioni di un insieme finito e si dà una nuova relazione di ricorrenza fra i numeri di Stirling di seconda specie. La relazione trovata permette di dedurre per via elementare la forma chiusa dei numeri di Stirling di seconda specie e dei numeri di Bell. Nella seconda parte si vuole vedere sotto quali e quante condizioni risulta additiva o superadditiva una funzione reale con dominioP (N), insieme delle parti dell’insieme finitoN. Dopo aver introdotto alcune definizioni, viene evidenziata l’equivalenza fra tre diverse condizioni atte a verificare l’additività di una funzione d’insieme. Dopo aver mostrato che tale equivalenza non sussiste più quando si tenta di trasferirla a funzioni superadditive, si ricava il numero di controlli necessari e sufficienti a verificare la superadditività di una funzione data empiricamente. In seguito si rivedono i risultati ottenuti inquadrandoli nella Teoria dei giochi di cooperazione adn persone, con particolare riferimento al calcolo del valore secondo Shapley, che viene trattato anche in un esempio numerico. 相似文献
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Journal of Consumer Policy - The concept of consumption corridors is a concept to guide policy design and policy-making. It suggests applying good life and justice as the primary... 相似文献
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Tulin Dzhengiz Ralf Barkemeyer Giulio Napolitano 《Business Strategy and the Environment》2021,30(5):2468-2488
Drawing on the literature on framing, we explore the emotional framing differences in radical and reformative NGOs over time. We analyse the sentiment of a sample of 5880 press releases issued by five NGOs positioned differently on the reformative-radical spectrum and examine how they address large companies. Our findings reveal an increasing polarisation of sentiment in these NGOs' framing, with individual NGOs gravitating towards ideal-type radical or reformative positions, respectively. In alignment with the differences in their framing, we observe differences in their approaches to cross-sector partnerships. Policymakers need to note the implications of the observed polarisation for the effectiveness and credibility of cross-sector partnerships and multi-stakeholder initiatives more generally, given the risk of co-optation (for reformative NGOs) as well as the risk of foregoing significant funding and governance opportunities (for radical NGOs). 相似文献
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Using the integer programming approach introduced by Sethuraman et al. (2003), we extend the analysis of the preference domains containing an inseparable ordered pair, initiated by Kalai and Ritz (1978). We show that these domains admit not only Arrovian social welfare functions “without ties,” but also Arrovian social welfare functions “with ties,” since they satisfy the strictly decomposability condition introduced by Busetto et al. (2015). Moreover, we go further in the comparison between Kalai and Ritz (1978)’s inseparability and Arrow (1963)’s single-peak restrictions, showing that the former condition is more “respectable,” in the sense of Muller and Satterthwaite (1985). 相似文献
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