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991.
992.
In recent years, the competition for shelf space has intensified, as more products now compete for a retail space that has remained roughly constant. In this paper, we analyze the dynamics of this competition in a multi‐supplier retail point. Assuming that sales are shelf space dependent, we consider a retailer that optimizes its shelf space allocation among different products based on their sales level and profit margins. In this context, product manufacturers set their wholesale prices so as to obtain larger shelf space allocations but at the same time keep margins as high as possible. We analyze the equilibrium situation in the supply chain, and find that generally the retailer's and the suppliers' incentives are misaligned, resulting in suboptimal retail prices and shelf space allocations. We however find that the inefficiencies induced by suboptimal shelf space allocation decisions are small relative to those induced by suboptimal pricing decisions.  相似文献   
993.
994.
This article examines the social care of older people in six contrasting European countries. Family, institutional and community care are compared, focusing on vulnerability, empowerment and the gatekeeping of resources. The article considers the position of older people in each care system by presenting individual case studies. The six countries include the family-oriented systems of Ireland, Italy and Greece, and the individual-oriented systems of Denmark, Norway and England. To improve the care of older people in any of these welfare cultures, resources need to be developed that work with existing sources of care but extend the rights of older people, at least to assessment and an equitable matching of needs to the care services available. Overall, the different levels of provision of organised social care services are a major aspect of inequality within and between the countries. Whilst there is little prospect for any major policy transfer across national boundaries, there is potential for selective cross-national learning with regard to particular service developments.  相似文献   
995.
996.
Various theoretical approaches have provided us with insights to explain the pattern of migration flows. Economic theory considers migration to be a reaction to labor market and economic incentives. Cultural theories predict that migration flows will occur according to a center‐periphery pattern, while social network analysis assumes that migrants follow already established migration networks. We test these three approaches simultaneously, using OECD and Eurostat data on the migrant inflow into the European countries between 1980 and 2004. The analysis demonstrates that migration flows react to economic incentives, mainly with regard to the labor market, but also to cultural and colonial linkages. There is no indication that the importance of the colonial past is declining over time. The response of migration patterns to shortages in the labor market is shown to be highly efficient, while the analysis shows that immigrants are not attracted by high levels of social expenditure.  相似文献   
997.
A pretest posttest control group design was employed to determine the effectiveness of a ten-week stress management program for middle school adolescents. Thirty-six adolescents participated in the experimental groups and 18 served as controls. The experimental subjects, in contrast to controls, reported a significant increase in the use of cognitive control coping strategies, in the effectiveness of adaptive coping strategies, and in the ratio of the use of adaptive relative to maladaptive coping strategies. The adolescents in the experimental group reported a significantly lower degree of stress than those in the control group. A 67.5 percent reduction in muscle tension following the use of relaxation procedures was reported by the experimental group members. The program appears to have been successful in developing stress management skills in two major areas emphasized in the intervention, cognitive control coping strategies and relaxation methods.  相似文献   
998.
Diversity of vascular plants growing on walls of a Brazilian city   总被引:2,自引:0,他引:2  
City walls are very specialized environments, conditioned by human activities. There is little information about plants that invade human-made habitats, and no study done in Brazil with plants growing up on walls. The aim of the present study was to survey the wall vascular flora of a Brazilian city, comparing the diversity found in its downtown and neighborhoods. Fieldwork was done in Jundiaí, São Paulo State, where data was collected in downtown and in five neighborhoods. In each place, three transects of 1 km were established and every plant individual was registered. Twenty-eight species were identified, all of them on the downtown transect and most also on the neighborhood transects. Five species were the most frequent, although none were dominant. The diversity indicies of the six transects were not significantly different, with an overall diversity of H′ = 2.93.  相似文献   
999.
Bien que les Néo‐Ecossais n'aient pas encore été soumis au type de réformes d'aide sociale édictées dans d'autres provinces, certains programmes visant à promouvoir la participation de la main‐d'?uvre par les bénéficiaires de paiements de transfert gouvernementaux ont récemment été mis en place à l'île du Cap‐Breton, la région de la province la plus marginale sur le plan économique. Cet article étudie la structure de l'un de ces programmes, parrainé par le gouvernement fédéral. L'analyse présentée ici avance l'idée que, en dépit du discours public officiel, la conception du programme n'apporte que peu d'avantages à la collectivité locale et à ses citoyens le plus dans le besoin, mais véhicule des avantages idéologiques importants pour l'état. Même si le programme ne peut être appelé un programme de travail obligatoire, au sens strict de l'expression, il reflète la même idéologie néo‐libérale que celle qui a inspiré des réformes sociales plus draconiennes. Though Nova Scotians have not yet been subjected to the type of provincial welfare “reforms” enacted in other provinces, some programs aimed at promoting work‐force participation by recipients of government transfer payments have recently been introduced to Cape Breton, the province's most economically marginal region. This paper examines the structure of one such program, sponsored by the federal government. The analysis presented here suggests that, despite public rhetoric, the program's design delivers limited benefits to the local community and to its neediest citizens, but carries major ideological benefits for the state. While the program cannot be called workfare, in the strict sense of the term, it does reflect the same neo‐liberal ideology that has inspired more Draconian social reforms.  相似文献   
1000.
通过对成熟市场股票发行制度的比较分析 ,指出竞争性的缔约机制和内生性分工演化机制是成熟市场股票发行制度的核心内容 ,提出了加强证券交易所与行业协会的监管职能、加大公司治理等软性信息披露力度、建立发行定价考评机制等发行制度以及发行环境市场化改革的建议  相似文献   
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