Recherche

L'Économie en centre-ville d’Orléans : le LÉO et le futur campus universitaire ouvriront sur le site Porte-Madeleine en Septembre 2026

Enseignement

Les membres et président du jury félicitent chaleureusement Hugo ORIOLA pour sa brillante soutenance de thèse qui porte sur l'impact direct ou indirect des actions de la banque centrale sur le résultat des élections.

Recherche

Pourquoi est-il si difficile de réformer les retraites en France ? Une réflexion d'Anne Lavigne, Professeur en économie au LÉO et conseillère au COR de 2016 à 2022

Le LÉO est un laboratoire d'économie rassemblant des enseignants-chercheurs de l'Université Clermont-Auvergne, de l'Université d'Orléans et de l'Université de Tours.

Il comprend une centaine de membres, dont les recherches couvrent trois grands domaines de compétence :

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Actualités du laboratoire

Recherche

05/12/2024

Market disappointment with central bank announcements

04/03/2025

Conférence « La finance verte, 10 ans après l’Accord de Paris »

27/03/2025

Conférence « Stablecoins and the challenges of MiCA Regulation »

affiche du journal forest economics
30/06/2025

Journal of Forest Economic – Call for papers: Special Issue on Mining and the Forest

17/12/2024

Conférence Chaire ILB CACL

05/12/2024

Conférence « Crise(s) et globalisation »

Enseignement

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20/03/2025

New PhD Student Presentation

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20/03/2025

Willingness to pay for the environment : the role of social status and of proactive attitude

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27/02/2025

Impact of Environmental Stringency on Developing Countries’ Participation in Global Value Chains

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23/01/2025

Rise of China’s National Sword: Evaluating its impact on Chinese waste imports

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09/01/2025

Compliance in fishing regulations: a Social Norms perspective in Ghana

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28/11/2024

Urban Growth and Climatic Shocks: A study of Sub-Saharan African cities

Dernières publications

> Toutes les publications

The effects of resource-backed loans on deforestation: Evidence from developing countries

Yacouba Coulibaly


World Development - 2025-04

Résumé non disponible.

Lien HAL

Dynamic and spillover effects of armed conflicts on renewable energy in Subsaharan Africa

Alfred Nandnaba


2025-02-11

This paper analyzes the impact of armed conflicts on the renewable energy consumption in 46 Sub-Saharan African countries over the period 2000-2020. It uses a dynamic spatial econometric method to capture the spatial and dynamic effects of these conflicts on renewable energy consumption. Using the dynamic and spatial method of the Durbin model, the main results show that armed conflicts have a significant negative impact on renewable energy consumption. The effect is to 30.97% for the dynamic model against 31.28% for the non-dynamic model. The spatial effects of these conflicts show us that armed conflicts, through their contagion and spillover effects, have a significant and negative impact on renewable energy consumption in the region of 32.11%. The short- and long-term results are generally negative and significant. For heterogeneity, results show that the effect of terrorism is larger than the effect of other types of conflict. Moreover, the impact of armed conflict on renewable energy consumption is greater in the Sahel than in the rest of our sample. This article shows that the effect of conflict on the consumption of renewable energy passes through three main transmission channels : economic development, the increase in military spending as a result of conflict, to the detriment of green investment, and uncertainty, which penalizes investment and the production of renewable energy.

Lien HAL

Does income inequality influence health vulnerability to pollution? Evidence from France

Karine Constant, Marion Davin, Emmanuelle Lavaine


2025-02

This study investigates whether income inequality within a population influences the health effects of pollution. Specifically, we empirically estimate the causal impact of particulate matter (PM 10 ) on mortality in France, using wind direction as an instrumental variable, and explore how income inequality modifies this relationship. Our findings reveal a statistically and economically significant impact of pollution exposure on the mortality of individuals aged 50 or older, which intensifies in municipalities with higher levels of income inequality. More precisely, while the effect of PM 10 is not significant in municipalities with the lowest levels of disparities, it is significant for the others and increases with the level of inequality within the municipalities. The impact of PM 10 on the mortality of individuals aged 50 or older in the top 33% of municipalities with the highest inequality is up to twice as large as in municipalities with intermediate levels of inequality. This result is particularly striking given that it concerns a country like France, which has relatively low income inequality. To provide a comprehensive understanding of the potential underlying mechanisms, we develop a theoretical model and empirically test its predictions. We conclude that the observed variation in vulnerability to pollution across municipalities, stratified by inequality levels, could have been but is not attributable to differences in public health expenditure, pollution exposure (between and within municipalities), or poverty prevalence and intensity. Our results suggest that inequality plays a significant role in environmental health, worthy of further research.

Lien HAL

Do tariff reductions alleviate energy poverty? Evidence for Sub-Saharan African countries

Windbeneti Arnaud Zahonogo


Energy Policy - 2025-02

Résumé non disponible.

Lien HAL

Assessing volatility persistence in fractional Heston models with self-exciting jumps

Bernard Desgraupes, Elena-Ivona Dumitrescu, Gilles de Truchis


Econometric Reviews - 2025-01-03

Résumé non disponible.

Lien HAL

Wealth inequality and carbon inequality

Ablam Estel Apeti, Bao We Wal Bambe, Eyah Denise Edoh, Alpha Ly


Ecological Economics - 2025-01

Résumé non disponible.

Lien HAL

Documents de recherche

> Tous les documents

Dynamic and spillover effects of armed conflicts on renewable energy in Subsaharan Africa

Alfred Nandnaba


2025-02-11

Does income inequality influence health vulnerability to pollution? Evidence from France

Karine Constant, Marion Davin, Emmanuelle Lavaine


2025-02

How do microfinance and economic development mutually support each other? A Panel VAR approach in developing economies

Mehdi Mahmoudi, Nicolae-Bogdan Ianc


2025

Does income inequality influence health vulnerability to pollution? Evidence from France

Karine Constant, Marion Davin, Emmanuelle Lavaine


2025

Financements intermédiés et fragilité en Afrique

Mohamed Coulibaly, Gregory Paulin Mvogo


2025

Institutions Matter: Press Freedom and Government Spending Efficiency

Bao-We-Wal Bambe, Jean-Louis Combes, Manegdo Ulrich Doamba, Chantale Riziki Oweggi


2024-12-10

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Le Léo en bref 2023

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