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421.
In this paper, using the fixed point theorem for Kakutani factorizable multifunctions, we shall prove new existence theorems of best proximity pairs and equilibrium pairs for free abstract economies, which include the previous fixed point theorems and equilibrium existence theorems. 相似文献
422.
Trost BM Frederiksen MU Rudd MT 《Angewandte Chemie (International ed. in English)》2005,44(41):6630-6666
The demand for new chemicals spanning the fields of health care to materials science combined with the pressure to produce these substances in an environmentally benign fashion pose great challenges to the synthetic chemical community. The maximization of synthetic efficiency by the conversion of simple building blocks into complex targets remains a fundamental goal. In this context, ruthenium complexes catalyze a number of non-metathesis conversions and allow the rapid assembly of complex molecules with high selectivity and atom economy. These complexes often exhibit unusual reactivity. Careful consideration of the mechanistic underpinnings of the transformations can lead to the design of new reactions and the discovery of new reactivity. 相似文献
423.
Ji-chengHou 《应用数学学报(英文版)》2003,19(3):425-430
In this note we first prove a fixed point theorem in H-spaces which unities and extends the corresponding results in [6] and [9]. Then, by applying the fixed point theorem, we prove an existence theorem of an equilibrium point of an abstract economy in H-spaces which improves and generalizes similar result in [4]. 相似文献
424.
This paper shows how bottom-up activity analyses within a dynamic computable general equilibrium framework can be undertaken for the longer-term analysis of energy and climate policies using the model SCREEN [25]. In particular we demonstrate for the case of Switzerland how the impact of policy measures to reduce the carbon intensity of the energy sector can be assessed with such a model for various socio-economic and environmental dimensions (e.g., C02 emissions, GDP, employment, foreign exchange rate). The results can provide valuable insights for the appropriate design of energy or climate policies that allow for the targeted fostering of a more sustainable energy development. 相似文献
425.
426.
一类线性规划逆问题及解法 总被引:4,自引:0,他引:4
本文讨论了逆LP问题的更一般的情况,这里称它为广义逆LP问题,即在知道了一部分变量和价值系数的条件下,求余下的未知的变量和价值系数,将它们合起来组成给定的LP问题的最优解。显然若知道全部价值系数就成为LP问题;若知道全部变量就成为逆LP问题,它是在根据研制应用软件时提出的。文中给出了解广义逆LP问题的算法,并成功地用于“宏观经济调控系统”等应用软件的研制中,对要解决的实际问题,给出了强多项式算法。 相似文献
428.
Katarí na Cechlárová Matthias Dahm Vladimír Lacko 《Journal of Global Optimization》2001,20(3-4):239-256
This paper studies efficient and stable country configurations in a simple model of country formation. Driving force of the model is a trade-off between the benefits of large countries and the costs of heterogeneity of large and diverse populations. We show that efficient configurations as well as stable configurations exist for each value of the model parameter; however, there is no unambiguous relation between them. Moreover, country sizes in efficient configurations may differ by at most two, while in stable configurations the differences in their sizes may be relatively high. Our results contrast with those of Alesina and Spolaore (1997). 相似文献
429.
Amitrajeet A. Batabyal 《Natural Resource Modeling》1991,5(4):445-467
In this paper we study two questions in environmental economics. First, within the context of a simple 2 × 2 × 2 static general equilibrium model, we seek to determine the conditions under which environmental policy, pursued unilaterally by a large country will make that country worse off. The empirical dimension of this question is stressed, and the key parameters which are germane to any policy discussion regarding this issue are identified. Second, we study—once again from the perspective of a large country—the possibility of using the domestic tax structure optimally to attain environmental policy objectives. Keeping the empirical dimension of the question in mind, we show how to compute optimal externality correcting taxes. We then briefly focus on the links between our stylized analytical model and the applied general equilibrium models currently being developed to study the effects of environmental policy quantitatively. 相似文献
430.
Equilibria of a stationary economy with recursive preferences 总被引:1,自引:0,他引:1
We consider an intertemporal stationary economy in discrete time, where agents have recursive preferences. Using dynamic programming, we show that equilibrium consumption trajectories from a capital stock are interior Pareto optima and are characterized by a strictly positive parameter in
n–1, the set of agents' initial weights. We then exhibit prices that support the Pareto optima and use the Negishi method to characterize the parameters corresponding to equilibria. Finally, we prove the existence of equilibria and show that the number of regular equilibria is odd. 相似文献