A multiregional planning and forecasting model with special regard to the public sector
Modèle d'optimisation multirégional d'allocation des investissements publics et privés, de la production et de l'emploi. Illustration des aptitudes du modèle à l'aide du développement régional en Suède, 1977-1983.
Population forecasting with nonstationary multiregional growth matrices
Calcul matriciel ; California ; Distribution spatiale ; Démographie ; Etats-Unis ; Evolution démographique ; Migration interrégionale ; Modèle multirégional ; Origine-destination ; Population ; Projection démographique ; Série chronologique
California ; Demographic change ; Demography ; Interregional migration ; Matrix analysis ; Multiregional model ; Origin-destination ; Population ; Population projection ; Spatial distribution ; Time series ; United States of America
In the USA, both the stationary assumption and the implicit five-year retrospective time scale imposed by the census migration data have probably contributed to the limited use of multiregional projection methods. The paper reviews previous attempts
The household-composition matrix as a notion in multiregionalforecasting of population and households
Alberta ; Algorithme ; Années 1976-1981 ; Années 1986-2001 ; Canada ; Edmonton ; Géographie humaine ; Matrice de composition des ménages ; Modèle EMPIRES ; Modèle multirégional ; Population ; Population locale ; Projection démographique ; Taille des
Extension de la matrice de composition des ménages à un modèle multirégional, où les régions de résidence sont considérées comme des catégories de ménage. Six types de migrations sont conçus comme des contraintes à l'intérieur desquelles se
Operational flood forecasting on the River Meuse using on-line identification
Hydrology for the water management of large river basins. Proceedings of the Symposium
Operational flood forecasting on the River Meuse in Belgium is based on both hydrologic and hydraulic modelling. This paper discusses a methodology based on on-line estimation of parameters, to model short variations in the response of the main
subcatchments of the Meuse. The variation of the parameters is modelled by means of a random walk method. Some objective criteria for evaluation forecasting performance are introduced. It can be concluded that, in general, adaptive modelling improves the real
California ; Econometric model ; Employment ; Employment structure ; Fitting ; Forecast;Prediction ; Industrial branch ; Los Angeles ; Model ; Multiregional model ; Production ; Regional economy ; Simulation ; United States
Ajustement ; Branche industrielle ; California ; Economie régionale ; Emploi ; Etats-Unis ; Los Angeles ; Modèle ; Modèle multirégional ; Modèle économétrique ; Production ; Prévision ; Simulation ; Structure de l'emploi
Présentation d'un modèle économétrique multirégional, et examen de ses performances, notamment en matière de prévision et d'évaluation des impacts économiques. La structure du modèle permet une bonne simulation des conséquences de diverses
This study examines methods of forecasting urban spatial structure from information on energy supply and cost. Five general forecasting approaches are identified, of which four are represented in the literature (Leibnizian forecasts, Lockean
An appropriate form of a multiregion disease model is fitted to the spread of the 1957 Asian influenza pandemic and then used to examine the distributions of warning times associated with varying the location of the source region. Disease parameters
are adjusted to represent current knowledge about the host-agent relationship for HIV, and used to make forecast for the spread of the virus during the next half century.
Toward a regional and world geography under a changed climate : Symposium on climate change
Adaptation ; Arctic Region ; Climatic change ; Economic policy ; Eurasia ; Forecast ; Global change ; Impact ; Society-environment relationship ; World
The A., specialist in environmental geography, introduces this symposium on climate change. He argues that the 3 papers (a) demonstrate the geographical approaches necessary for understanding broader social, economic, and environmental consequences
Does specification matter? Experiments with simple multiregional probabilistic population projections
England ; Forecast ; Internal migration ; International migration ; Migration ; Migratory flow ; Population ; Population projection ; Probability ; Regional analysis ; United Kingdom
migration internationale. Les résultats montrent que les totaux des sous-populations et les intervalles de prédiction au niveau multirégional diffèrent des autres modèles plus simples. Il en est de même pour les différentes hypothèses en matière de migration