Publications of the Chair

Evaluating second-hand EVs subsidies Efficiency and Welfare Gains

2025
Authors :
Ariane Bousquet, Juan-Pablo Montero, Maria-Eugenia Sanin

The recent inclusion of second-hand EV subsidies in several countries raises questions about their economic rationale. Contrary to conventional thinking, we show that while subsidies for second-hand EVs are often justified on equity grounds, they also improve efficiency as they influence the equilibrium composition of the vehicle fleet.

Warning words in a warming world: central bank communication and climate change

2025
Authors :
Emanuele Campiglio, Jérôme Deyris, Davide Romelli, Ginevra Scalisi

This paper studies climate-related central bank communication using a novel dataset containing 35,487 speeches delivered by 131 central banks from 1986 to 2023. It employs natural language processing techniques to identify and trace the evolution of key climate-related narratives centred around (i) green finance, and (ii) climate-related financial risks. Equity returns of "green" firms outperform those of "dirty" firms...

Mission Accomplished? A Post-Assessment of EU ETS Impact on Power Sector Emissions

2024
Authors :
Mohammadehsan Eslah, Anna Creti, María-Eugenia Sanin

This paper leverages a new method in the construction of credible counterfactuals for causal inference. This paper adopts a Bayesian structural time series (BSTS) modeling framework alongside a set of contemporaneous predictors related to power sector emissions to build counterfactual estimates of emissions for each post-intervention period and analyze the policy implementation effect by...

Energy Poverty has a justice dimension: comparing Bolivia, Côte d’Ivoire, and France

2024
Authors :
Anna Creti, Alpha Ly et Maria-Eugenia Sanin.

Energy poverty is a multidimensional issue, as demonstrated by a comparison between two low-income countries, Bolivia (BOL) and Côte d’Ivoire (CIV), and a high-income European country, France (FRA). These three countries represent different stages of access and energy poverty. The findings highlight the importance of considering affordability in efforts to ensure universal energy access, to...

Ecological policy mix: the SDSN France report

2025
Authors :
Aubert, N., Couppey-Soubeyran, J., Didier, R., Dufrêne, N., Hollandts, X., Lagoarde-Ségot, 1 T., Le Quang, G., Le Poder, L., Massa, I., Mathieu, A., Peters, A., Ponsot, J.F., Revelli, C., Scialom, L., Sersiron, A., Toure, S., Van Weeren, M.

The report attempts to respond to the UN Secretary-General's recent call for "innovative approaches and bold policy decisions" to tackle the SDGs (UN, 2023). It attributes the existing finance gap to the unrealistic assumptions of the dominant macroeconomic paradigm, which it proposes to replace with new assumptions that are better able to address the...

Assessing the Impact of Climate Extreme Events and Conflicts on Internal Displacement in Burkina Faso

2025
Authors :
Koffi Adzavon, Safiétou Sanfo, Ossadzifo Wonyra, Christine Furst

This study investigates the dynamic relationship between climate extreme events, conflicts, and internal displacement in Burkina Faso. Using monthly data on floods, storms, violent and non-violent conflicts, and demonstrations from 2018 to 2022, the analysis shows that, unlike storms, floods have affected all regions of the country. This study highlights the need for effective conflict management...

What policy mix for the ecological transition?

2024
Authors :
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
Authors :
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
Authors :
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
Authors :
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...