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La plupart des méthodes utilisées pour prédire la consommation d'eau d'irrigation à l'échelle régionale sont fondées sur des modèles biophysiques et les assolements. Leur objectif est de fournir des estimations précises de la "demande d'eau" qui sont utiles pour la gestion des...
Persistent link: https://www.econbiz.de/10008790765
, sometimes referred to as modeling ‘tribes', began to engage in productive dialogue in the mid-1990s (IPCC 2001). From this … methodological conversation have emerged modeling approaches that offer a hybrid of the two perspectives. Yet, while individual … publications over the past decade have described efforts at hybrid modeling, there has not as yet been a systematic assessment of …
Persistent link: https://www.econbiz.de/10008792529
Modeling activities and scenario building are at the heart of the economic analysis delivered by the ULCOS program. Two … main objectives were followed in the framework of SP9. First the modeling team had to provide a set of coherent energy … these objectives specific tools have been used: POLES model for the global energy system modeling and ISIM model for the …
Persistent link: https://www.econbiz.de/10008792729
Les espèces de grand gibier sont considérées à la fois comme des ressources et des nuisibles : valorisées par les chasseurs et responsables de dommages économiques collectifs. L'article se propose de caractériser l'optimum collectif en mobilisant le cadre de l'économie des ressources...
Persistent link: https://www.econbiz.de/10010898837
We analyze identification of nonseparable models under three kinds of exogeneity assumptions weaker than full statistical independence. The first is based on quantile independence. Selection on unobservables drives deviations from full independence. We show that such deviations based on quantile...
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In an important class of econometric problems, researchers select a target parameter by maximizing the Euclidean norm of a data-dependent vector. Examples that can be cast into this frame include threshold regression models with estimated thresholds, and structural break models with estimated...
Persistent link: https://www.econbiz.de/10012109832