Les publications de la Chaire

What policy mix for the ecological transition?

2024
Auteurs :
Esther Jeffers, Dominique Plihon

This article looks at how to make fiscal, monetary and prudential policies greener in order to address the massive financing needs and major risks associated with climate change.

Starting with the observation, based on the recent experience of the financial and health crises, that the separate and independent implementation of monetary and fiscal policies undermines...

Individual versus group-level agglomeration bonuses to conserve biodiversity

2024
Auteurs :
François Bareille, Raphaël Soubeyran

Agglomeration bonuses (ABs) are payments conditional on the contiguity of landowners’ conservation areas. It is widely accepted that, by encouraging landowners to cooperate, ABs promote more cost-effective biodiversity conservation than instruments targeting landowners individually. This article challenges this conclusion by studying the impacts of different AB designs, some of which explicitly aim to enhance...

Subsidies and rebound effect with incomplete carbon pricing: an application to biogas

2024
Auteurs :
Victor Besnier, Guy Meunier

Bioenergies from dedicated crops or wood have faced substantial criticisms due to their significant land requirements. Certain bioenergy pathways, such as biogas generated from crop residues, manure, or food waste, appear to be exempt from this criticism. However, these feedstocks are byproducts of agricultural activities that generate emissions not covered by current climate policies in...

Long-term sustainability of zero-growth capitalism: activity, employment and unemployment according to different modes of income distribution

2024
Auteurs :
Laurent Cordonnier, Jacques Mazier

This paper studies the long-term consequences of a zero-growth regime on the evolution of employment and unemployment, depending on the assumptions we can make concerning the evolution of the working population, labor productivity and working hours. These consequences are examined through three scenarios. This leads us to conclude that the goal...

Les pratiques de mobilite des Francais

2024
Auteurs :
Aurélien Bigo

Les pratiques de mobilité des Français. Graphiques de novembre 2024 issus d’une analyse avec Fabien Perez (SDES) à partir des données de l’enquête mobilité des personnes (EMP) de 2019. 

Governance Arrangements for Local Sustainable Business Models: The Case of Local Energy Systems

2024
Auteurs :
Johanna Ayrault, Farah Doumit, Franck Aggeri

Despite extensive research on sustainable business models and the development of various tools to facilitate their implementation, barriers persist particularly concerning the governance of a local ecosystem of actors. We identify that a facilitating public policy framework combined with internal institutional, strategic and operational drivers linked to the governance of local ecosystems is crucial...

Les modèles IAMs et leurs limites

2024
Auteurs :
Alain Grandjean

Cette note a pour but de présenter de manière synthétique les modèles mathématiques utilisés aujourd’hui par la communauté des économistes du climat et leurs limites. Ces modèles sont utilisés à la fois pour dimensionner les mesures à prendre pour limiter le changement climatique et pour évaluer les impacts du changement climatique sur le système...

Sustainable economic policies: exploring the effects of sustainability-linked money creation

2024
Auteurs :
Augustin Sersiron, Jézabel Couppey Soubeyran, Thomas Lagoarde-Ségot

This paper explores the potential contribution of Sustainability-linked Money Creation (SMC) to sustainable economic policies. Our simulations suggest that, in comparison to a baseline scenario, SMC issues could potentially constitute an anti-inflationary, counter-cyclical green transition policy, that increases biomimetic resilience and contains income and wealth inequalities. We finally discuss the policy implications, as well...

Sustainable economic policies: exploring the effects of ecosystemic macroprudential regulations

2024
Auteurs :
Thomas Lagoarde-Ségot ,Gaëtan Le Quang , Laurence Scialom,

This paper explores the implications of ecosystemic macroprudential regulations on sustainability in an ecological PK-SFC framework. The results of the paper highlight the relevance of ecosystemic prudential regulation to tackle climate change and call for adopting a holistic approach to sustainability policies.

Agricultural Productivity Growth and Deforestation in the Tropics

2024
Auteurs :
Mathieu Couttenier, Sebastien Desbureaux, Raphael Soubeyran

We analyze the impact of agricultural productivity growth on tropical deforestation. Our dynamic model of forest-to-farmland, addressing the Jevons’ paradox and Borlaug hypothesis, predicts that rising agricultural productivity, reflected by declining fertilizer price growth, has an ambiguous effect on deforestation. Using tropical forest loss data (2000-2022) and fertilizer price variations, we find a negative...