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91.
Clive D Fraser 《Journal of Economic Theory》2000,90(2)
Using the homogeneous of degree zero inverse congestion (“quality”) function employed most frequently in the literature, we characterise completely the families of utility functions which are then necessary and sufficient for break-even utilitarian welfare maximising provision of club goods with self-selection to be separable from distribution. Two types of separation—involving, alternatively (a) the price and quality; (b) the price, quality, facility size and total utilisation—are considered. When separation is possible, utility functions and optimal decisions take simple, intuitive forms. Our results extend the scope of separation results previously obtained only for pure public goods. Journal of Economic Literature Classification Numbers: D62, H23, H40. 相似文献
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93.
M.S. Reed A. Bonn W. Slee N. Beharry-Borg J. Birch I. Brown T.P. Burt D. Chapman P.J. Chapman G.D. Clay S.J. Cornell E.D.G. Fraser J.H. Glass J. Holden J.A. Hodgson K. Hubacek B. Irvine N. Jin M.J. Kirkby W.E. Kunin F. Worrall 《Land use policy》2009
Upland areas provide UK society with many important functions, goods and services, but have experienced a number of disturbing trends and face an uncertain future. This paper outlines historic, current and future drivers of environmental, economic, socio-cultural and policy change in UK uplands, and assesses how these have affected or are likely to affect ways in which land is used and the provision of ecosystem services. Information is synthesised into scenarios summarising a range of possible futures anticipated for UK uplands to 2060 and beyond. Finally, innovations in science, technology, governance and policy are evaluated that could enable uplands to continue providing key ecosystem services under a range of scenarios. The paper concludes that many upland areas will need to be prepared for significant reductions in grazing and prescribed burning. Conversely, other areas could experience agricultural intensification, for example significant increases in grazing or an expansion of arable or bioenergy crops into upland valleys, due to anticipated increases in global demand for food and energy. These scenarios will take place in the context of climate change. Many may take place together and may interact with each other, with complex and unpredictable implications for the upland environment, economy and society. In this context, a number of advances are needed in science, technology and policy to maintain viable upland communities and the future provision of ecosystem services. These may include funding for ecological and hydrological restoration via carbon offsetting or other means. It may also involve advances in ecosystem service modelling, mapping and valuation, which through stakeholder participation could facilitate more integrated rural planning. New forms of environmental governance need to be explored that can empower those interested in developing upland economies to maintain thriving upland communities, while managing the ecosystem services they provide as efficiently as possible. 相似文献
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The Grose River is contained almost entirely within a World Heritage Area. While sewage pollution in the area has been addressed, pollution at damaging levels continues from a disused coal mine, closed in 1997. Despite some surface rehabilitation, no action has occurred to remediate zinc polluted waters emanating from the mine. We examine the historical regulation and management of the Australian Commonwealth and New South Wales governments and highlight gaps in both regulatory systems. We conclude that there is an urgent need to improve regulation of water pollution, mining and management of the environment in highly valued world heritage areas. 相似文献
97.
Ian Worthington 《Journal of Business Ethics》2009,90(1):47-60
In exploring corporate perceptions of the business case for supplier diversity (SD), this paper reports on a cross-national
study of large purchasing organisations (LPOs) that had introduced, or were in the process of introducing, purchasing initiatives
aimed at ethnic minority businesses (EMBs). The research investigates how LPOs portray the benefits of this form of socially
responsible purchasing and suggests a business case construct based on four component elements. It also highlights a number
of contextual factors that appear to have shaped business case rationales. The paper concludes with a discussion of issues
of cost and contingent influences affecting SD programmes and points to possible areas for future research. 相似文献
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99.
Book reviewed in this article:
Bauman, Robert P., Jackson, Peter and Lawrence, Joanne T. From Promise to Performance: A Journey of Transformation at SmithKline Beecham 相似文献
Bauman, Robert P., Jackson, Peter and Lawrence, Joanne T. From Promise to Performance: A Journey of Transformation at SmithKline Beecham 相似文献
100.
Two symmetric sellers are approached sequentially by fragmented buyers. Each buyer conducts a second-price auction and purchases from the seller who offers the lower price. Winning an auction affects bidding for future contracts because the sellers have nonconstant marginal costs. We assume that the sellers are completely informed, and we study the unique equilibrium that survives iterated elimination of weakly dominated strategies. If subcontracting between the sellers is impossible, the final allocation of contracts is generally inefficient. If postauction subcontracting is possible, the sellers can be worse off, ex ante , than when subcontracting is impossible. 相似文献