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Assistant professor (Maître de Conférences)
Aix Marseille University
Aix Marseille School of Economics (AMSE)
Teaching
Machine learning
Computer science for economists
Applied statistics for economists
March 2026
[Conference] I was invited by Renaud Bourlès to give a presentation to students at Centrale Méditerranée as part of the lecture series Values and Sustainability, which he organizes with Guillaume Quiquerez. The presentation discusses how economic analysis can be used to measure the impacts of climate and climate change.
December 2025
[Workshop] Alain Paraponaris and I will present our paper The Imaginary Healthy Patient co-authored with Amady Seydou Ba and Pierre Michel.
The 10th Scientific Symposium of the AHEAD Research Network: AI and Digital Health: Challenges and Opportunities for Public Health in the MENA Region, Marseille, France, December 11–12, 2025.
[Course Materials] This semester, I taught an Applied Economics course for Master 2 students enrolled in the Data, Analysis, Decisions and Economic Evaluation track at Aix-Marseille School of Economics. The course explores selected topics in applied economics with a focus on climate-related issues. The lecture slides are available online.
November 2025
[Seminar] I will present our ongoing project on the assessment of counterfactual fairness using marginally optimal transport, on which I work with Agathe Fernandes Machado and Arthur Charpentier at the economics seminar of ENSAI
Economics Seminar of ENSAI’s Economics Department, Rennes, France, November 28, 2025.
[Tutorials] Gauthier Vermandel and I prepared a tutorial to replicate the results of our paper, Weather Shocks (European Economic Review, 2020), and extend its scope to other countries, to the subgroup on Macro Modelling of the Network of Central Banks and Supervisors for Greening the Financial System (NGFS) Workstream on Monetary Policy. Online session, 4th and 12th November, 2025.
August 2025
- [Conference] Agathe Fernandes Machado will present our paper Optimal Transport on Categorical Data for Counterfactuals using Compositional Data and Dirichlet Transport, co-authored with Agathe Fernandes Machado and Arthur Charpentier.
34th International Joint Conference on Artificial Intelligence – IJCAI, Montréal, Qc, Canada, 16th – 22nd August, 2025
July 2025
[Conferences] Our ongoing paper, When It Rains, It (Possibly) Hurts: The Impact of Rainfall Shocks on Violence Against Children in Nigeria, co-authored with Marion Dovis and Nathalie Ferrière will be presented at the following conferences:
5th International Conference on Development Economics and launch of the European Development Economics Group - ICDE, Paris, France, July 2–4, 2025 [presentation by Nathalie].
Journées Louis-André Gérard-Varet – LAGV, Marseille, July 1–2, 2025 [presentation by Nathalie].
June 2025
[Dissemination] Claire Lapique wrote an article in Dialogues Economiques about our paper The dynamic effects of weather shocks on agricultural production co-authored with Cédric Crofils and Gauthier Vermandel that appeared in the Journal of Environmental Economics and Management in March 2025.
[Interns] Our team in Montreal will welcome a few Mitacs Globalinks Interns. With Arthur Charpentier and Agathe Fernandes Machado, we will supervise:
- Allison Lara Nieva (Universidad Nacional Autónoma de México)
- Ірина Войціцька (Український католицький університет).
May 2025
[Pre-print] New pre-print on arXiv Unveil Sources of Uncertainty: Feature Contribution to Conformal Prediction Intervals ⟨arXiv:2505.13118⟩
joint work with Marouane Il Idrissi, Agathe Fernandes Machado, and Arthur Charpentier[Conferences] our ongoing paper, When It Rains, It (Possibly) Hurts: The Impact of Rainfall Shocks on Violence Against Children in Nigeria, co-authored with Marion Dovis and Nathalie Ferrière will be presented at the following conference:
59th Annual Meetings of the Canadian Economics Association, Montréal, Québec, Canada, May 30–31, 2025.
[Conference] I will present (online) our ongoing project, Machine Learning Elicitation of Risk Preferences, co-authored with Aurélien Baillon and Olivier L’Haridon.
Journée d’Econometrie appliquée en l’honneur de Michel TERRAZA (Montpellier, Université de Montpellier), May 23, 2025, Montpellier, France.
[Seminar] Gauthier Vermandel and I presented our paper, Weather Shocks (European Economic Review, 2020)
Network of Central Banks and Supervisors for Greening the Financial System (NGFS) Workstream on Monetary Policy (Subgroup on Macro Modelling), Online seminar, May 14, 2025.
February 2025
[Seminar] I presented our Algorithmic Fairness Through Counterfactual Analysis and Optimal Transport, joint with with Arthur Charpentier and Agathe Fernandes Machado.
CRM-CNRS (Internal Seminar), February 18, 2025, Montréal, Québec, Canada.
[Conference] Agathe Fernandes Machado presented the poster of our paper, Sequential Conditional (Marginally Optimal) Transport on Probabilistic Graphs for Interpretable Counterfactual Fairness, co-authored with with Agathe Fernandes Machado and Arthur Charpentier.
The 39th Annual AAAI Conference on Artificial Intelligence, February 25 – March 4, 2025, Philadelphia, PA, United States of America.
⟨arXiv:2408.03425⟩
January 2025
[Pre-print] New pre-print on arXiv
Optimal Transport on Categorical Data for Counterfactuals using Compositional Data and Dirichlet Transport ⟨arXiv:2501.15549⟩
joint work with Arthur Charpentier and Agathe Fernandes Machado.
[Conference] I gave a talk at Summ (Les Séminaires Universitaires en mathématiques à Montréal) 2025
Mathematics Meets Morality: Fairness Through a Mathematical Lens
joint work with Arthur Charpentier and Agathe Fernandes Machado.
December 2024
[Conference] Agathe Fernandes Machado presented the poster of our paper, Post-Calibration Techniques: Balancing Calibration and Score Distribution Alignment, joint with Agathe Fernandes Machado, Arthur Charpentier, Emmanuel Flachaire, and François Hu.
NeurIPS workshop on Bayesian Decision-making and Uncertainty, December 14, 2024, Vancouver, British Columbia, Canada.
November 2024
[Paper accepted] Our paper has been accepted for publication in Journal of Environmental Economics and Management
The Dynamic Effects of Weather Shocks on Agricultural Production
joint with Cédric Crofils and Gauthier Vermandel
[Paper accepted] Our paper has been accepted in Revue d’Économie Politique
The Imaginary Healthy Patient
joint with Amady Seydou Ba, Pierre Michel, and Alain Paraponaris
Aix Marseille School of Economics
5–9 Bd Maurice Bourdet – CS 50498
13205 Marseille Cedex
France
ewen.gallic@gmail.com