There exist specific factor scarcities if, and only if, the inputs of the production process are not perfect substitutes. Under the extreme assumption of strict factor complementarity between labour and resources in the production of some aggregate consumption good, and assuming that the...

Inside a standard growth model with exhaustible resources, we study the optimal growth policy of an economy submitted to a climate constraint, taking the form of a ceiling over admissible atmospheric carbon concentrations. The optimal scenario is a three phases path: a rise of carbon...

[fre] Exploitation d'une ressource non renouvelable,possibilité de stockage et règle d'Hotelling . . Rares sont les modèles de l'entreprise minière qui tiennent compte explicitement des possibilités de stockage de la firme. Nous montrons qu'un monopole peut être conduit à stocker tout ou...

This paper studies the intertemporal substitutions between the use of renewable and non renewable resources if the productivities of the different kinds of resources are improved through time by exogenous trends of dedicated technical progress. We show that the optimal exploitation paths of the...

We characterize the optimal exploitation paths of two primary energy resources. The first one is a non-renewable polluting resource, the second one a pollution-free renewable resource. Both resources can supply the energy needs of two sectors. Sector 1 is able to reduce the potential carbon...

We show how the exhaustion constraint of non renewable resources, against which maintaining a minimum level of consumption may collapse in the long run, could be relaxed by an appropriate effort in R?D. However along any optimal trajectory of the economy, this effort has to be made if and only...

Usual resource models with capital accumulation focus upon simple one to one process transforming output either into some consumption good or into some capitalgood. We consider a bisectoral model where the capital good, labor and a non renewable resource are used to produce the consumption good...

Il existe une littérature assez abondante sur l'ordre dans lequel une société devrait utiliser ses ressources au cours du temps. Ce que nous voudrions explorer c'est l'incidence d'un progrès technique spécifique, permettant d'économiser les quantités de ressources requises par unité de...