This paper discusses the growth model with environmental constraints recently presented in (Acemoglu et al., 2011) which focuses on the redirection of technical change by climate policies with research subsidies and a carbon tax. First, Acemoglu et al.'s model and chosen parameters yield...

After nearly two decades of debate and fundamental disagreement, topdown and bottom-up energy-economy modelers, 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...

Extreme events are one of the main channels through which climate and socio- economic systems interact and it is likely that climate change will modify their probability distributions. The long-term growth models used in climate change as- sessments, however, cannot capture the effects of such...

les économistes recommandent l'utilisation d'écotaxes destinées à internaliser les dommages environnementaux dus à la consommation, la production de certains biens ; ces écotaxes permettraient de récolter un double-dividende. Leurs recommandations sont peu suivies pour des raisons...

We examine the international distribution of expenditures for the provision ofa global, long-term and uncertain public goods from the point of view of abenevolent planner. Even assuming a "no-redistribution" constraint, first periodexpenditures are in general progressive with income, and...

This paper aims at clarifying some conceptual flaws blurring the equity-efficiency debates involved in the setting of objectives of GHGs emissions control beyond 2012. To this end, it carries out numerical experiments that test the viability of agreements grounded on two contrasting target...

This paper addresses the timing of the use of biological carbon sequestration and its capacity to alleviate the carbon constraint on the energy sector. We constructed a stochastic optimal control model balancing the costs of fossil emission abatement, the opportunity costs of lands allocated to...

L'utilisation du calcul économique sur le très long terme fait l'objet de critiques quipeuvent aller jusqu'à un rejet pur et simple, en particulier en raison de la technique del'actualisation qui, en écrasant le poids du long terme, viendrait en contradiction avec leprincipe de précaution....

La capacité des véhicules électrifiés (VE) à diminuer les émissions de gaz à effet de serre (GES) est sujette à débat. De nombreuses études fondent le calcul des émissions kilométriques des VE sur le contenu carbone de l'électricité contemporaine. Nous proposons une évaluation qui...

This paper aims at clearing up misunderstandings about the distributive impacts of carbon taxes, which proved to be a decisive obstacle to their further consideration in public debates. It highlights the gap between partial equilibrium analyses, which are close to the agents' perception of the...