[eng] Notes on capital labor substitution. . At an empirical level we provide evidence of the large substitution of capital for labor which took place in France during the last 25 years and we analyze the resulting evolutions of factor productivities. At a theoretical level we use a simple model...

[fre] Hystérésis et piège du sous-développement dans un modèle de croissance endogène. . Nous reprenons le modèle canonique de Romer [1986] pour en préciser les propriétés d'hystérésis. Nous montrons ensuite comment l'introduction d'un effet de seuil dans ce modèle implique la...

The possibility of carbon leakage arises when there is an asymmetry in climate policies across countries. A Border Carbon Adjustment (BCA) and a Border Tax Adjustment (BTA) are considered effective instruments to tackle this leakage. Using the Melitz trade model with firm heterogeneity, we study...

International differences in fuel taxation are huge, and may be justified by different local negative externalities that taxes must correct, as well as by different preferences for public spending. In this context, should a worldwide unique carbon tax be added to these local taxes to correct the...

International differences in fuel taxation are huge, and may be justified by different local negative externalities that taxes must correct, as well as by different preferences for public spending. In this context, should a worldwide unique carbon tax be added to these local taxes to correct the...

We study the optimal extraction of two non-renewable resources when extraction costs depend on cumulative previous extraction. We first define a complete user cost of natural resources, including environmental damages, which allows us to greatly simplify the resolution. This framework is applied...

This paper studies the maximin paths of the canonical Dasgupta-Heal-Solow model when the stock of natural capital is a direct argument of well-being, besides consumption. Hartwick's rule then appears as an efficient tool to characterize solutions in a variety of settings. We start with the case...

International differences in fuel taxation are huge, and may be justified by different local negative externalities that taxes must correct, as well as by different preferences for public spending. In this context, should a worldwide unique carbon tax be added to these local taxes to correct the...

We study the optimal extraction of two non-renewable resources when extraction costs depend on cumulative previous extraction. We first define a complete user cost of natural resources, including environmental damages, which allows us to greatly simplify the resolution. This framework is applied...