Nous présentons un modèle « prospectif » avec deux économies. Le Nord a stabilisé son stock de gaz à effet de serre, alors que le Sud continue d'émettre des polluants sans moyen de lutter contre. Ces externalités ont un impact sur la production du Sud et sont source de désutilité au...

Nous présentons un modèle "prospectif" avec deux économies à générations imbriquées : L'une, riche, a stabilisé son stock de gaz à effet de serre dans un passé récent, alors que l'autre, pauvre, entâme une phase d'émissions croissantes sans moyen de lutter contre. Ces externalités...

We analyze the design of optimal environmental policy when environmentaldamage is uncertain and investments in abatement technologies are irreversible. Weassume that the investment in the new abatement technology can be used for twoperiods and that the true extent of environmental damage will...

We study how learning affects an uninformed monopolist?s supply and investment decisions under multiplicative uncertainty in demand. The monopolist is uninformed because it does not know one of the parameters deÞning the distribution of the random demand. Observing prices reveals this...

As increasingly obvious signs tell us that the natural environment is changing abruptly and, unfortunately, noticeably, the natural resources are increasingly depleted but have to support a growing population, strategies for the sustainable development of the society will have to be implemented,...

We consider the decision of an agent with time inconsistent preferences to undertake an irreversible investment that yields an uncertain current benefit and a delayed cost. We show that, if the flow of information revealed between periods when the investment is postponed is sufficiently high,...

We analyze the decision of individuals with time inconsistent preferences who undertake irreversible activities yielding either a current cost and a future benefit or a current benefit and a future cost. We first show that, when benefits come earlier than costs, the individual faces a...

We analyze imperfect competition in dynamic environments where firms use rivalrous but nonexcludable industry-specific capital that is provided exogenously. Capital depreciation depends on utilization, so firms influence the evolution of the capital equipment through more or less intensive...

We analyze imperfect competition in dynamic environments where firms use rivalrous but non-excludable industry-specific capital that is provided exogenously. Capital depreciation depends on utilization, so firms influence the evolution of the capital equipment through more or less intensive...

This draft PhD thesis analyzes four issues in the research field that consists of the intersection of environmental economics, uncertainty, and decision-making. 1. Economic investments that lead to environmental damages beyond repair - like cutting rainforests or emitting pollutants with long...