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L'Économie en centre-ville d’Orléans : le LÉO et le futur campus universitaire ouvriront sur le site Porte-Madeleine en Septembre 2027

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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

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10/02/2026

Intervention de Catherine BROS sur France Culture : les relations stratégiques entre l’UE et l’Inde

Maison des Sciences de l’Homme Val de Loire
23/01/2026

Journée d’étude “Le Seigneuriage”

16/04/2026

EENR 2026 – Environmental Economics: a focus on Natural Resources

06/02/2026

ORRM – Orléans Meetings on Responsible Resources

19/09/2025

1ère Conférence Annuelle « Les ECOPOL »

07/10/2025

Les mutations de la finance dans un monde fragmenté

Enseignement

15/01/2026

Replicating Bitcoin Performance: A Connectedness Analysis of Equity Portfolios

27/11/2025

Transforming Under Pressure : Climate Risks, GVCs, and Structural Change

02/10/2025

First-year PhD Students Presentation

19/06/2025

Should I Wait or Should I Pay? The Dynamics of Private and Public Healthcare

05/06/2025

Should the Central Bank react? Extreme Weather Events and Price Dynamics in the Philippines

22/05/2025

Seeing Through the Algorithm: How Explainability Shapes Decision-Making on Robo-Advisor Platforms

Dernières publications

> Toutes les publications

Public Health as a Buffer for FDI: The Role of Healthcare Services in Economic Stability

Zahra Khalilzadeh Silabi


2026

This study examines how epidemic outbreaks influence foreign direct investment (FDI) inflows in developing countries, with a particular focus on whether healthcare systems can act as buffers during such shocks. Using a panel dataset of 98 countries from 2000 to 2022, the analysis combines two-way fixed effects (FE) models and the Local Projection Method (LPM). The analysis is structured in three parts: First, fixed-effects regressions assess the average effect of 20 major epidemics on FDI, revealing that diseases such as Ebola, MERS, Lassa Fever, and Leptospirosis significantly reduce investment inflows. Second, local projection methods trace the short-and medium-term responses of FDI to health shocks by transmission type. The results show varying recovery patterns: while FDI tends to rebound after direct contact or mosquito-borne outbreaks, airborne diseases cause more persistent declines. Third, the study explores whether stronger healthcare systems can mitigate these negative effects. Results suggest that countries with a higher density of nurses experience less severe FDI losses during outbreaks, particularly for diseases transmitted through direct contact or bodily fluids. These findings underline the importance of healthcare investment not only for public health but also for economic resilience. By distinguishing effects across disease types and highlighting the moderating role of health infrastructure, this study offers practical insights for policymakers seeking to safeguard investment flows during times of crisis.
Lien HAL

Sustainable Multi-Manager Portfolio Optimization under Factor Model Uncertainty

Benoit Begoc, Christophe Boucher, Patrick Kouontchou, Sessi Tokpavi


Journal of portfolio management - 2025-12-31

Practical Applications Market Perspectives Top Picks Experts Submit an article More Sustainable Multi-Manager Portfolio Optimization under Factor Model Uncertainty Benoit BegocChristophe BoucherPatrick KouontchouSessi Tokpavi The Journal of Portfolio Management Factor-Based Investing 2026, 52 ( 3) 255 - 279 DOI: 10.3905/jpm.2025.1.790 To download content, you need to upgrade your trial to full subscription. Please contact your account manager to do this. Please log-in to or register for your personal account in order to save a bookmark. Log-in/register Please log-in to or register for your personal account in order to apply a label. Log-in/register You must be logged in as an individual apply an alert. Log-in/register The Journal of Portfolio Management Vol 52 Issue 3 The Journal of Portfolio Management Vol 52 Issue 3 Volume 52, Issue 3 Factor-Based Investing 2026 Download issue PDF To download content, you need to upgrade your trial to full subscription. Please contact your account manager to do this. lock Log in to access this content or Request a Demo Request a Demo Find topics, articles or authors... Article Authors Abstract Beyond environmental and ethical objectives, the performance of sustainable funds has been shown to vary significantly over time due to their exposure to identifiable investment factors such as growth and quality. The authors introduce a straightforward allocation method of sustainable funds that smooths performance over market cycles by capping unwanted style risks and boosting genuine outperformance (alpha). This is accomplished through an empirical strategy that accounts for uncertainty in factor models when estimating fund sensitivities and abnormal returns, combined with an optimization program that requires no tuning parameters and limits portfolio rebalancing. Empirical applications to a European universe—including Sustainable Finance Disclosure Regulation Articles 8 and 9 environmental, social, and governance (ESG) funds—demonstrate that the proposed active strategy outperforms many widely used passive ESG indexes, as well as competing active and smart beta approaches. These results also hold over an extended universe of both sustainable and nonsustainable funds, underscoring the robustness of the methodology.
Lien HAL

Starting a Non-Farm Enterprise to Escape Energy Poverty: Household Level Evidence from Rural West Africa

Moustapha Mounmemi, Arouna Kouandou


The Journal of Development Studies - 2025-12-01

The choice of cooking fuel is a critical economic and health decision for rural households, with significant implications for well-being and environmental sustainability. This paper examines whether rural non-farm entrepreneurship promotes the adoption of cleaner cooking fuels, specifically liquefied petroleum gas (LPG). Using large, nationally representative data from eight WAEMU countries – Benin, Burkina Faso, Côte d’Ivoire, Guinea-Bissau, Mali, Niger, Senegal, and Togo – we apply econometric techniques to address endogeneity and selection bias. Our findings show that households engaged in non-farm entrepreneurial activities are significantly more likely to adopt LPG. We further show that non-farm entrepreneurship enhances financial inclusion by improving access to microfinance, mobile banking, and informal savings groups (ROSCAs), thereby easing liquidity constraints that limit investments in clean energy. These results suggest that promoting rural non-farm enterprises, along with expanding financial services and infrastructure, can effectively reduce energy poverty and improve health outcomes in sub-Saharan Africa.
Lien HAL

Revisiting 15 years of unusual transatlantic monetary policies

Jose Garcia Revelo, Grégory Levieuge, Jean-Guillaume Sahuc


Journal of International Money and Finance - 2025-12

The European Central Bank and the Federal Reserve introduced new policy instruments and made changes to their operational frameworks to address the global financial crisis (2008) and the Covid-19 pandemic (2020). We study the macroeconomic effects of these monetary policy evolutions on both sides of the Atlantic Ocean by developing and estimating a tractable two-country dynamic stochastic general equilibrium model. We show that the euro area and the United States faced shocks of different natures, explaining some asynchronous monetary policy measures between 2008 and 2023. However, counterfactual exercises highlight that all conventional and unconventional policies implemented since 2008 have appropriately (i) supported economic growth and (ii) maintained inflation on track in both areas. The exception is the delayed reaction to the inflationary surge during 2021–2022. Furthermore, exchange rate shocks played a significant role in shaping the overall monetary conditions of the two economies.
Lien HAL

The effects of population health on political risk

Ayoko Charlotte D’almeida Mannko, Ludé Djam’angai, Eric Fina Kamani


European Journal of Political Economy - 2025-12

Political risk is a significant barrier to sustainable economic development. Identifying factors that can help mitigate it is therefore essential. This study contributes to the literature by examining an often-overlooked yet important factor: population health. Specifically, we investigate whether improvements in population health can reduce political risk in Sub-Saharan Africa (SSA). To this end, we use a new measure of health that accounts for both life expectancy and morbidity, allowing us to assess both the quality and length of life. Using panel data from 32 SSA countries (1991–2021), we find that better health conditions significantly reduce political risk. Moreover, we identify income per capita, financial development, and education as key transmission mechanisms, with education emerging as the primary channel. Extending the analysis to a global sample confirms the negative relationship between health and political risk, as well as the relevance of the identified transmission mechanisms. By highlighting the critical role of population health in reducing political risk, this study underscores that investing in population health is not only a moral duty but also a strategic necessity for sustainable economic development.
Lien HAL

Secularity and migration aspirations in the Arab world

Hajare El Hadri, Réda Marakbi


World Development - 2025-12

This study develops a new theoretical framework to explain how secularity influences migration aspirations in the Arab world. We argue that secular individuals incur significant psychological costs when living in highly religious societies. This value incongruence pushes them to seek out more secular environments, whereas strongly religious individuals face higher cultural costs of moving and thus prefer to stay. We derive testable hypotheses on how individual secularity and socio-political secularity act as push pull factors for different communities and migration destinations. We then test these hypotheses using 2018 2019 Arab Barometer data from eleven MENA countries. We construct original indices for individual secularity and socio-political secularity via multiple correspondence analysis. Consistent with our theory, probit and instrumental-variable probit estimates show that secular individuals are significantly more likely to express intentions to emigrate particularly to highly secular Western countries. Among Muslim majority populations, both individual and socio-political secularity increase the desire to migrate, whereas among Christian minorities only individual secularity has this effect. Moreover, secularity drives regular migration aspirations, with no measurable impact on irregular migration except in the case of religiously unaffiliated “nones,” who exhibit a heightened willingness to migrate by any means. These findings contribute to the migration literature by emphasizing the substantial, yet previously underexplored, influence of secular beliefs and practices on migratory behavior in the Arab context.
Lien HAL

Documents de recherche

> Tous les documents

Public Health as a Buffer for FDI: The Role of Healthcare Services in Economic Stability

Zahra Khalilzadeh Silabi


2026

Effects of International Climate Agreements on Trade in Environmental Goods: The Kyoto Protocol

Ben-Vieira Kouassi


2025-10-14

Volatility during the Global Financial Crisis and COVID-19 pandemic through the lens of high-frequency data: a Realized GARCH approach

Denisa Banulescu-Radu, Peter Reinhard Hansen, Zhuo Huang, Marius Matei


2025-10-12

A tool for economists to make the search for conferences and special issues more efficient and transparent

Jean-Charles Bricongne, Diyar Can, Marwan Menaa, Guillaume de Rouville, Janna Bengouirah, Ismaël Fall


2025-08-25

La réforme des fonds de pension aux Pays-Bas : état des lieux et prospective

Anne Lavigne


2025-06-25

Optimal Green Policy-mix

Lise Clain-Chamosset-Yvrard, Nicolas Clootens, Daria Onori


2025-03-11

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Le Léo en bref 2024

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ouvrage
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manifestations scientifiques organisées nationales et internationales
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