They joined us this fall…

27 November 2025

There have been many new arrivals at CEE-M this fall: six doctoral students, two new postdocs, and two contract engineers.

What projects are they working on? What were their backgrounds before arriving at CEE-M? Here are a few details to help you get to know these newcomers better:

  • News Phd

ELISA DELOR

  • Thesis project: “Decision-making in complex environments: modeling and experimentation”. Winner of the 2025 competition held by the Montpellier Doctoral School of Economics and Management (EDEG), Elisa began her PhD in October 2025. She is supervised by Brice Magdalou (CEE-M).
  • Academic and professional background: After obtaining her high school diploma in economics and social sciences, followed by a bachelor’s degree in economics with a focus on political and economic analysis at Clermont-Auvergne University, Elisa enrolled in a master’s program in economics and psychology at the University of Montpellier. As part of this master’s program, Elisa completed an internship at Montpellier Research in Economics on the individual behavioral determinants of vector-borne diseases. Elisa also obtained training as a data analyst in 2024

 

JULES DEYA

  • Projet de thèse : “Analysis of Price Dynamics for Co-products and By-products of Metals: Dependency, Volatility, and Implications for Markets and Supply Chains.” Jules is pursuing his PhD as part of the PEPR Sous-sol project. His thesis focuses on the pricing of metals such as gallium and indium, which are not produced for their own sake but as by-products of primary metals such as aluminum and zinc. The aim is to contribute to better anticipation of supply risks and to inform industrial and political decisions related to these essential metals. This PhD is being supervised by Francesco Ricci (CEE-M), with co-supervision by Daniel Montfort-Climent (BRGM) and Guillaume Bagnarosa (Rennes School of Business). Jules is based at the BRGM branch in Orléans.e CEE-M).
  • Academic and professional background: Holder of an MSc in International Finance and a Master’s degree from Rennes School of Business, with preliminary experience in quantitative analysis of raw materials, gained in a position at FIT S.A., a dairy products brokerage firm..

 

KARIM DIALLO

    • Thesis project: “The socio-economic impact of biodiversity conservation policies in developing countries“. This PhD aims to analyze how these conservation policy interventions influence the economic and social dynamics of these countries. Karim is supervised by Antoine Leblois ( (CEE-M) and Derya Keles (BETA).
  • Academic and professional background: Karim holds a bachelor’s degree in agricultural and environmental economics from Norbert Zongo University (Koudougou, Burkina Faso) and a double master’s degree in economic analysis and development project analysis from the School of Economics at Clermont Auvergne University..

 

HARRISON DYDE-NAIRN

  • Thesis project: “Externalités liées à la production primaire et secondaire des matières premières critiques“. Doctorate carried out as part of the “Technical and Economic Foresight” (TAEF) project, which is part of the PEPR Sous-sol program. Funded by INERIS, this doctorate is being conducted in collaboration with CEE-M, under the supervision of Francesco Ricci (CEE-M) and Gilles Lafforgue (TSE).
  • Academic and professional background: Harrison holds a Master’s degree in Economics from Paris-Saclay University. Having also studied at the University of Valencia and the University of Queensland, Harrison is particularly interested in the interactions between energy transition, international trade, and sustainability policies.

 

SARAH FETI

    • Thesis project: “Modalities of exposure to climate risks, eco-anxiety, and social cohesion“. Doctorate carried out as part of a NEXUS project (mirror theses), analyzing how individuals perceive and experience climate risks, how these perceptions influence their emotions—particularly eco-anxiety—and how these dynamics affect social cohesion and collective behavior. The research draws on both behavioral economics approaches and population survey methods. Supervised by Hélène Rey-Valette(CEE-M) and co-supervised by Cécile Bazart  (CEE-M).
  • Academic and professional background: Sarah holds a Master’s degree in Economics and Psychology. Before starting her thesis, she was a contract engineer at the Center for Economics and the Environment in Montpellier (CEE-M). As part of this contract, Sarah worked on a behavioral economics project focusing on the psychosocial determinants of behavior, particularly in the areas of mobility and online consumption..

 

ALEXIS LEFEBVRE

  • Thesis project: « Daily mobility and ecological transition: towards greater consideration of social and spatial inequalities in the definition of transport policies”. Doctoral contract obtained following the competition held by the Montpellier Doctoral School of Economics and Management (EDEG), supervised by
  • Thierry Blayac ( (CEE-M) and co-supervised by Mickaël Beaud (CEE-M).
  • Academic and professional background: Alexis holds a bachelor’s degree in economics and social sciences, a bachelor’s degree in economics, and a master’s degree in public economics and the environment from the Faculty of Economics at the University of Montpellier. At the same time, he completed two internships at the EWC-M in 2024 (two months) and 2025 (five months).

 

  • News postdocs

ADRIEN COIFFARD

  • Postdoctoral project: As part of the Agri4Polproject dedicated to pollinator conservation, Adrien’s research focuses on the value farmers place on pollinators and their preferences for different types of public policies aimed at protecting them. Adrien is supervised by Sophie Thoyer(CEE-M).
  • Academic and professional background: Adrien holds a PhD in environmental economics, obtained in 2024, focusing on the effectiveness and acceptability of agri-environmental auctions, mainly using experimental approaches. He was then recruited as a contract research engineer, where he contributed to various projects in experimental economics at the CEE-M.

 

CLARA SANTINI

  • Postdoctoral project :as part of the Défi-Clé Observation de la Terre et des Territoires en Transition, Clara is conducting an action research project aimed at supporting coastal areas in Occitanie in adapting to the effects of climate change by developing indicators and multi-scale monitoring systems adapted to the spatial restructuring of these areas. As part of this project, Clara is supervised by Hélène Rey-Valette and Cécile Bazart  (CEE-M).
  • Academic and professional background: After studying agricultural engineering between 2014 and 2018, specializing in TERPPA, Clara worked as a consultant (public policy, territorial development) in a consulting firm in New Caledonia, then was recruited as a project manager at the Agglomération du Pays de l’Or to create their Territorial Food Project (PAT). She then wrote a thesis in institutional economics at the UMR Innovation on this PAT public action program, in order to examine the contribution of governance to the transition of food systems, with fieldwork in the Occitanie region.

 

  • New contract engineers

LUCAS RALAIVAO

  • Mission(s) :Lucas was recruited to support Katrin Erdlenbruch (CEE-M) on two projects: Water Occitanie, where Lucas is working on assessing the costs incurred by drought in the agricultural sector (the study area is located in the Pyrénées-Orientales), and Trajectoire, where Lucas is responsible for processing a database from a questionnaire on coastal residents’ perceptions of issues relating to the adaptation of coastal areas to rising sea levels.
  • Academic and professional background: Lucas holds a bachelor’s degree in economics from Montpellier and a master’s degree in EEET (Economics of the Environment, Energy, and Transportation) from AgroParisTech.

 

MARIE RESCAN

  • Mission(s) : “Agent-based modeling to explore scenarios for transitioning to greater circularity of organic matter in urban centers“. Recruited to support Sophie Thoyer (CEE-M) and Jean-Philippe Steyer (LBE), Marie is based at the Environmental Biotechnology Laboratory (LBE) in Narbonne.
  • Academic and professional background: Academic and professional background: After completing her PhD in 2016, two post-doctoral fellowships in evolutionary ecology modeling (including a Marie Curie fellowship) and a fixed-term contract as an engineer responsible for updating databases on eel catches in the Mediterranean, Marie is now focusing on environmental issues that are more socially oriente