Optimal environmental policies for sustainable growth : a two-region model
Bien-être ; Contrôle optimal ; Croissance économique ; Développement durable ; Economie régionale ; Lutte contre la pollution ; Modèle ; Modèle multirégional ; Qualité de la vie
Economic growth ; Model ; Multiregional model ; Optimal control ; Pollution control ; Quality of life ; Regional economy ; Sustainable development ; Well-being
déterminées par le biais d'une méthode de contrôle optimal. La simulation numérique montre que la politique de contrôle optimal s'avère efficace : la plupart des trajectoires de l'indice de bien-être de la région développée présentent un unique sommet associé
à une durée de croissance plutôt longue, ce qui affecte favorablement l'autre région.
Considérations théoriques et programmation dynamique visant une prévision de la durée de rotation optimale dans une période de croissance exponentielle des prix.
Optimality in two spatially separated periodic markets
Concurrence ; Coût de transport ; Durée optimale ; Formation des prix ; Généralités sur la géographie ; Marché ; Marché périodique ; Mathématique ; Stabilité structurale ; Surplus social
états soutenus| nombre optimal de jours pour une semaine d'activité.
allied fields) and he examines the evidence on resource availabilities over the next 50 years. A geographical constraint is then introduced and consideration is given to the new-renewable resource prospects of Western Europe during the next half century
Optimal models of river branching angles in Models in geomorphology.
Derives an optimality model for the geometry of stream junctions and discusses the effects on angles of the two parameters that compose the general optimal angular geometry models.
The AA. demonstrate a new method for obtaining optimal solutions to the Multi-Weber Problem and prove the optimality of the results. The paper seeks to improve implementation of the algorithm to make the solutions economically attractive.
A disequilibrium model of the market for houses : implicit selling time as a signal of optimal holding periods and buyer valuation
. Dans un tel contexte, les vendeurs ajustent le prix de réserve en fonction de la durée qui s’écoule entre la mise sur le marché, les prix de l’immobilier et le moment de la vente.
This paper examines the socially optimal (and also equilibrium) locations of two stores or libraries on a linear market of unit length. If each consumer has probability of finding a desired product at each store, then the socially optimal locations
are never completely centralized for full information, but are completely centralized for when costly visit search is necessary. The Nash equilibrium locations of two stores, and various alternative models for the socially optimal locations of two stores
Optimizing the spatial structure of the agricultural production function
Agricultural production ; Agriculture ; Demand ; Location ; Model ; Optimization ; Production fonction ; Profit ; Scenario ; Spatial structure
The equilibria of optimal production with price elasticity as well as of capital intensity with labor employment determine spatial limits of the optimal production zone which is shifted outward subject to the provision of cheap transportation
. It will help in extending outwardly the optimal spatial limits of capital investment and will mobilize capital resources of farmers in the periphery for efficient and competitive capital-dominated farming.
Water resources optimization and eco-environmental protection in Qaidam Basin
Arid area ; China ; Ecosystem ; Environmental conservation ; Model ; North-Western China ; Optimization ; Sustainable development ; Water ; Water resources
Based on the essential principle of sustainable development, this paper puts forward a general idea on water resources optimization and eco-environmental protection in Qaidam Basin, and identifies the competitive multiple targets of water resources
optimization. According to the Multiple Targets Decision by the Closest Value Model, the best plan of water resources optimization, eco-environmental protection and sustainable development in Qaidam Basin is finally decided.
A sampling strategy for quantitative soil survey includes two different samplings : (i) a reconnaissance sampling to characterize the variogram required to optimize the sampling scheme for (ii) the actual survey. For the actual survey a sampling
spacing of 2 km in a square grid was found to result in an acceptable maximum kriging estimation error of 5,76 %. The proposed sampling strategy would require 408 observations in total. This is 71 % less than the sampling during the National Soil Survey.
Recherche du nombre optimal de candidatures auquel doivent se soumettre d'éventuels immigrants pour rendre maximales leurs chances de gagner. Aux Etats-Unis.