Maël Forcier

Maël Forcier

Deputy head of Multilateral Financing for Developement and Climat Unit in French Treasury, PhD in Mathematics

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About me

I defended my PhD in optimization in 2023 at CERMICS, École des Ponts ParisTech and CMAP, École Polytechnique under the supervision of Vincent Leclère and Stéphane Gaubert.

Since September 2022, I have been working actually work for the French Treasury , in the French Economy and Finance Department . I was first in charge of housing policies. Since September 2024, as Deputy Head of Multilateral Financing for Developement and Climat Unit, I am in charge of climate finance policies and methodologies in Multilateral Development Banks and of the Asian Infrastructure Investment Bank.

My french resume.

Research

Keywords

Climate ; Economy ; Energy ; Environment ; Finance ; Housing ; Integrated Assessment Models ; Multilateral Development Banks; Public Policies ; Polyhedral Geometry ; Renovation ; Stochastic Programming ;

PhD Thesis

M. Forcier, Multistage stochastic optimization and Polyhedral geometry. Manuscript , Defense slides , Fiche vulgarisée .

Publications

M. Forcier, Can Housing Needs Be Met by Using the Existing Stock?, Trésor-Éco n°347, July 2024, English, French.

M. Forcier, S. Gaubert, V. Leclère, Exact quantization of multistage stochastic linear problems, 2023, SIAM Journal on Control and Optimization, 2024, vol. 34, no 1, p. 533-562, Best student paper at ECSO-CMS 2022. SIAM , arXiv .

M. Forcier, V. Leclère, Generalized adaptive partition-based method for two-stage stochastic linear programs : Geometric oracle and analysis, Operations Research Letters, Volume 50, Issue 5, 2022, Pages 452-457, ISSN 0167-6377, Best Paper Award for ORL . ORL, arXiv, Code.

M. Forcier, V. Leclère, Trajectory Following Dynamic Programming algorithms, 2022, Journal of Convex Analysis 30 (2023), No. 3, 951--999. JCA, HAL, Slides.

Talks

ECSO-CMS , June 2022, Venice: Exact quantization methods for Multistage Stochastic Linear Problems, Winner of the best student paper prize. Slides.

SMAI-MODE , June 2022, Limoges: Secondary simplex method for two-stage stochastic linear programs with general cost distribution. Slides, Code.

ROADEF , February 2022, Lyon: Generalized Adaptive Partition-based method for two-stage stochastic linear programs. Slides.

PGMO Days , EDF Saclay, December 2021: Generalized Adaptive Partition-based method for two-stage stochastic linear programs. Slides.

Young Researchers Seminar , October 2021, CERMICS: 2-Stage stochastic linear programming and polyhedral geometry. Slides.

EURO , July 2021, Athens, online: Multistage stochastic linear problem and polyhedral geometry. Slides.

Decision, Algorithm and Geometry Seminar , July 2021, École polytechnique: Multistage stochastic linear problem and polyhedral geometry. Slides.

SMAI-MODE, September 2020, online: The polyhedral structure and complexity of multistage stochastic linear problem with general distribution cost. Slides, Video.

Teaching

2024: Teaching Mathematics, Economy and Ecological Transition class, Third year bachelor, UFR Sciences et techniques, Nantes Université , Slides, TD.
 
2024: Animation of the formation "Designing our low carbon life", Inventons Nos Vies Bas Carbone, IGPDE .
 
2021-2022: Teaching assistant of second year continuous optimisation class by Vincent Leclère, École des Ponts.
 
2019-2020-2021: Teaching assistant of first year optimisation class by Frédéric Meunier, École des Ponts.
 
2020-2021-2022: Teaching assistant of second year operation research class by Axel Parmentier, École des Ponts.
 
2021: Teaching assistant of License 3 MIASHS (Third year Bachelor) optimisation class by Jean-Marc Bonnisseau, Université Paris 1 Panthéon-Sorbonne.
 

Public policy works

Contributions
French Treasury, Interim report, The economic challenges of the net zero transition, December 2023. Report.
 
France Stratégie, Les incidences économiques de l'action pour le climat, Rapport thématique Marché du capital, Mai 2023. Report.
 
Academic previous works
M. Forcier, L’apport des scénarios prospectifs et de la modélisation dans l’élaboration de politiques publiques : l’exemple du scénario Avec Mesures Supplémentaires (AMS) et de la Stratégie Nationale Bas Carbone (SNBC) pour atteindre la neutralité carbone en 2050, 2019. Report, 4 pages summary.
 
N. Acherar, L. Chénerie, M. Forcier, B. Marret, M. Vignes. Problématiser et contextualiser, en vue de l’améliorer, le dispositif d’hébergement et de logement des migrants en Île-de-France. 2019 Report, 4 pages summary.