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81.
Consideration of reference systems for semivalues leads us to a global representation of the action of a semivalue on a game. Using this representation, we show how to modify semivalues to take account of coalition structures on the player set. The players' allocations according to a semivalue, including a modified semivalue, can be computed by means of products of matrices obtained from the multilinear extension of the game. 相似文献
82.
In the present paper we study the framework of additive utility theory, obtaining new results derived from a concurrence of algebraic and topological techniques. Such techniques lean on the concept of a connected topological totally ordered semigroup. We achieve a general result concerning the existence of continuous and additive utility functions on completely preordered sets endowed with a binary operation ``+', not necessarily being commutative or associative. In the final part of the paper we get some applications to expected utility theory, and a representation theorem for a class of complete preorders on a quite general family of real mixture spaces. 相似文献
83.
Marion Mercier Anda David Ramón Mahia Rafael De Arce 《International migration (Geneva, Switzerland)》2016,54(6):56-73
Using the ECM2 survey data on Ecuadorian migrants returning from Spain, we investigate the determinants of reintegration upon return. We study how the migration experience, but also the before‐ and after‐migration characteristics, correlate with migrants’ outcomes upon return. We adopt a broad conception of reintegration, considering jointly labour market‐related outcomes that proxy for structural reintegration and subjective indicators that provide insights on sociocultural reintegration. The determinants of these two types of outcomes appear to be different: reintegration indeed encompasses multiple dimensions which cannot be captured by a single indicator. Our results suggest that return assistance programmes’ efficiency in helping reintegration could be improved by (I) targeting, ex‐ante, returnees who plan to launch their own business, and, ex‐post, the most vulnerable workers (women, older returnees, unemployed), and (ii) facilitating the labour market integration of foreign‐educated returnees. They also call for further research to better understand the consequences of these programmes. 相似文献
84.
Blessing M. Chiripanhura Miguel Nio‐Zarazúa 《Development policy review : the journal of the Overseas Development Institute》2016,34(6):763-788
This article examines the impacts of the financial, food and fuel crises on poor and vulnerable households in two states of Nigeria: Lagos and Kano. It uses retrospective household‐level data to analyze the impacts of induced price variability on household welfare. The results indicate that aggregate shocks have significant adverse effects on household consumption, schooling and child labour decisions, with a degree of impact heterogeneity across regions and rural and urban areas of the country. We find that the coping strategies adopted by the poor to deal with the short‐term effects of the crises can lock households in a low‐income equilibrium or poverty trap. Provided that covariate shocks exacerbate these effects, they become central for policy design. 相似文献
85.
This article analyzes the efficiency levels of nonprofit sports clubs through the data envelopment analysis methodology and specifically evaluates how efficient and inefficient clubs perceive the distinct contribution of stakeholders in attaining their respective levels of output efficiency. The results distinguish the varying levels of efficiency between such clubs and highlight significant differences in the roles of the local government and of associations and federations in attaining these efficiency levels. The study further suggests best practices that can be adopted by officials at inefficient clubs toward reducing or eliminating their shortfalls in efficiency. 相似文献
86.
Renata Arrington‐Sanders Anthony Morgan Jessica Oidtman Miguel C. Gomez Adedotun Ogunbajo Maria Trent J. Dennis Fortenberry 《Journal of research on adolescence》2016,26(4):1009-1021
Despite high human immunodeficiency virus (HIV) rates among young Black men who have sex with men (YBMSM), there are limited data about condom use during first same‐sex (FSS). This study sought to understand socio‐contextual factors of 50 YBMSM aged 15–19 years that influenced condom use during FSS. Condom use was influenced by individual, partner, and community factors. Individual factors—recent illness or sexually transmitted infections (STI)—prompted condom use, while frequent HIV testing prompted nonuse. Partner factors—proactive encouragement from partners—prompted condom use, while trust and condom discomfort prompted nonuse. Larger community factors—such as presence of females—were key for use, while limited sexual health information combined with peers who discouraged condoms prompted nonuse. A multilevel approach may be useful in developing sexual health programming for these young men. 相似文献
87.
Social Indicators Research - Spatial inequality measures should take into account the geographical position of the data of reference if the focus is on the spatial aspects of territorial... 相似文献
88.
Random variables may be compared with respect to their location by comparing certain functionals ad hoc, such as the mean
or median, or by means of stochastic ordering based directly on the properties of the corresponding distribution functions.
These alternative approaches are brought together in this paper. We focus on the class of L-functionals discussed by Bickel
and Lehmann (1975) and characterize the comparison of random variables in terms of these measures by means of several stochastic
orders based on iterated integrals, including the increasing convex order. 相似文献
89.
90.
Journal of Management and Governance - 相似文献