Economics serving society

Interview | Public transport fare policies and energy transition | Jean Coldefy and Carine Staropoli

In this new interview of Economics for everybody, Jean Coldefy, advisor to the President of Transdev and director of the Mobility 3.0 program at ATEC ITS France, and Carine Staropoli, professor at the Paris School of Economics and senior lecturer at the university Paris 1 Panthéon-Sorbonne, explain how public transport fare policies are defined and what initiatives should be implemented to facilitate the energy transition, including an analysis of consumer behaviour in relation to these fares.


An engineer by training, Jean Coldefy is Director of Programs at ATEC ITS France, President of the think tank of the Union Routière de France and advisor to the President of Transdev. He was also a local elected official for 12 years. He is a member of the scientific committee of France Mobilités and participated in the drafting of the law on the orientation of mobility. He assists companies and local authorities in their mobility projects. He lectures in several colleges and universities.


Carine Staropoli is a professor at the Paris School of Economics where she co-directs the Urban New Deal Chair and a senior lecturer at the university Paris 1 Panthéon-Sorbonne. Her research focuses on the economics of contracts and regulation applied to energy and public procurement. She uses experimental economics to analyse electricity consumption and mobility behaviours.


Read more:

- Perez Y. & Staropoli C., 2022, “Mobilités décarbonées : une transformation au milieu du gué”, Revue d’économie industrielle, vol. 178-179.

- Mayol A. & Staropoli C., 2020, “Giving consumers too many choices: a false good idea? A lab experiment applied to water and electricity tariffs”, European Journal of Law and Economics, Vol. 51, Issue 2, 383-410.

* This video is part of the Economics for everybody formula.