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51.
It is shown that in Nash bargaining over division of a single good, when agents are allowed to distort their von Neumann-Morgenstern utility functions into any (weakly) concave form, reporting linear utility functions constitutes a unique dominant-strategy Nash equilibrium. 相似文献
52.
Nanotechnology is the first major worldwide research initiative of the 21st century. Nanotechnologies are applied to cross industrial problems and are a general purpose technology that acts as both a basis for technology solutions or at the convergence of other enabling technologies, like biotechnologies, computational sciences, physical sciences, communication technologies, cognitive sciences, social psychology and other social sciences. Nanotechnologies are pervasive solution vectors in our economic environment. It is necessary to develop new methods to assess nanotechnologies development to better understand nanotechnology based innovation. As general purpose and enabling technologies, nanotechnologies reveal commercialization processes, from start-ups to large firms in collaboration with public sector research, and which lead to changing patterns of industrial organization which influence public policy initiatives to foster their development. 相似文献
53.
A typology of a class of service systems is proposed. The typology links strategic operational objectives to the decision to de-couple work between the front and back offices of a service system. Four specific ideal types of a strategy/de-coupling mix are described; each of which has distinct operational, marketing and human resource ramifications. A type that has had significant representation in traditional literature is the “Cost Leader” type, where back-office activities are de-coupled from the front office for the purpose of lowering costs. Another traditional type representative of the craftsman legacy is the “Personal Service” type, which retains back-office tasks in the front office to pursue non-cost-oriented strategic goals. Theoretical and empirical evidence is also given for two non-traditional types: the “Kiosk” type, where all tasks remain in the front office to achieve lower costs, and the “Focused Professional” type, which de-couples front- and back-office activities to enable front-office workers to provide higher service, rather than to reduce costs. Empirically, retail bank lending systems are analyzed to support the typology. 相似文献
54.
This paper analyzes the impacts of policy reforms in the EU dairy sector. It is shown that the imple-mentation of GATT agreements leads to a 4% decrease in the milk price. Prices of SMP and WMP decrease more than butter and cheese prices. EU welfare increases marginally, but distributive effects are large. The increase in quotas decided by the Berlin Agreement will cause a dramatic cut in the milk price (?10% to ?15% depending on how EU demand will increase in the future). Moreover, because of the constraints on subsidized exports, the implicit price of protein will decrease much more than the price of fat. Finally, if demand expands sufficiently, then compensatory payments (including national envelopes) will cover about 90% of the loss in producer surplus due to the milk price cut. We also inves-tigate the impact of a two-tiered quota system and show that its impacts are similar to those generated by the implementation of GATT agreements. On étudie les effets de différents scénarios de réforme de la politique laitiére européenne. La mise en oeuvre des accords du GATT implique une réduction du prix du lait de 4%. De plus, les baisses de prix des produits transformés sont plus importantes pour les poudres de lait que pour le beurre ou le fro-mage. L'impact des accords sur le bien-ětre est positif mais faible. Par contre les effets redistributifs sont importants. L'augmentation des quotas décidée lors de l'accord de Berlin entra?nera une baisse importante du prix du lait européen, de l'ordre de 10 %à 15 % selon l'évolution de la consommation intérieure. En raison des contraintes d'exportations qui portent principalement sur les produits pro-téiques, le prix implicite de la protéine de lait diminue beaucoup plus que le prix implicite de la matiére grasse laitiére. Par ailleurs, on montre que si la demande européenne s'accro?t suffisamment, les paiements compensatoires prévus couvriront environ 90 % des pertes de revenus des producteurs liées à la baisse du prix du lait. Enfin, on montre que les effets d'un scénario de double prix double quota sont proches de ceux provoqués par la mise en application des accords du GATT. 相似文献
55.
Comparisons of the costs of reduced-impact (RIL) and conventional logging (CL) based on new data from Gabon and 10 previously published studies revealed that some tropical forest operators should adopt RIL out of financial self-interest but many may require other motivation. Among the comparisons in which costs were expressed per cubic meter of harvested timber, three reported lower costs for RIL, one showed identical costs with CL, and six reported RIL to be more costly. 相似文献
56.
For allocation problems with one or more items, the well-known Vickrey–Clarke–Groves (VCG) mechanism (aka Clarke mechanism, Generalized Vickrey Auction) is efficient, strategy-proof, individually rational, and does not incur a deficit. However, it is not (strongly) budget balanced: generally, the agents' payments will sum to more than 0. We study mechanisms that redistribute some of the VCG payments back to the agents, while maintaining the desirable properties of the VCG mechanism. Our objective is to come as close to budget balance as possible in the worst case. For auctions with multiple indistinguishable units in which marginal values are nonincreasing, we derive a mechanism that is optimal in this sense. We also derive an optimal mechanism for the case where we drop the non-deficit requirement. Finally, we show that if marginal values are not required to be nonincreasing, then the original VCG mechanism is worst-case optimal. 相似文献
57.
The Amazon rain forest harbors some of the world's richest biological diversity. During the twentieth century, two types of actors cleared that forest: native Amazonians and outside encroachers. Of the two actors, we know more about what drives outside encroachers to clear forest than about what drives native Amazonians to clear forest. The past research focus has served well because during the twentieth century outside encroachers cleared most of the Amazonian forest. But the past research focus needs to be expanded because native Amazonians are claiming de jure stewardship of the forests they inhabit, and with tighter jurisdiction over those forests will likely come changes in the amount of forest native Amazonians clear. Prior research in rural areas of low-income nations suggests that household income affects household forest clearance. To estimate the effects of household real income on the total forest area (old-growth + fallow) cleared by households we use a panel composed of five annual household surveys (2002-2006, inclusive) from 324 households of a native Amazonian society in Bolivia (Tsimane'). We control for household and village fixed effects and use an instrumental variable for household income. We find positive and significant household real income elasticities of forest clearance of 0.35 and 0.47 and an increase in forest clearance of 5.3%/year. The main finding stood up well to sensitivity analysis. These estimates suggest that in the near future, the forest in the Tsimane' territory will likely face increasing pressure from the Tsimane' themselves, not just from outside encroachers. 相似文献
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