Nudges for greener mobility

The project " Incentivizing Clean Mobility, Impact of Image on Perception and Alternative Uses within Public and Corporate Communities " (IMP²ULCE), financed by the Hauts-de-France Regional Council, as part of its call for projects Support for Interdisciplinary, Multi-establishment and Exploratory Work (STIMULE) consists of a field experiment conducted with companies, associations and local authorities in the Hauts-de-France region in order to test the relevance of four different types of nudges and a financial incentive of the reward type on the use of modes of transport alternative to the private car.

What is a nudge? And which nudges are tested?

A nudge, or "nudge," is a form of public policy that aims to change individual behavior without going through financial incentives (tax) but by providing information to individuals that enables them to behave in the way that decision makers, both public and private, want them to.

The first nudge tested will refer to social comparison. The second will play a moralizing role towards individuals through the carbon footprint of their travel. The third one will communicate on the loss (time, health, etc.) related to transportation. The fourth will focus on changing the presentation to make less polluting transportation more attractive.

What is the objective of the [IMP]²ULCE project?

Companies represent a major player in daily mobility with their role as prescribers of business trips and home/work journeys. For the latter, the cost of mobility has a significant impact on the company's economic performance, whether direct (reimbursement of expenses, parking, ...) or indirect (employee well-being, punctuality and productivity of the latter, carbon footprint ...). Supporting sustainable mobility is therefore essential in terms of competitiveness.

The objective of this experiment is therefore to analyze and understand the impact of the different tools tested (nudges and financial incentives) on the use of alternative modes of transport to the private car (public transport, cycling, carpooling, walking) in the context of commuting. The goal is not only to determine the impact of these public policies on car use, but also to prioritize the effectiveness of the different nudges and traditional financial incentive tool tested.

The results of this work in addition to being promoted in the scientific community, will also be promoted towards the general public through a "white paper" collecting the main results and recommendations towards companies and public organizations.


In this project, LARSH is associated with the BETA laboratory (Bureau d'Économie Théorique et Appliquée) of the University of Strasbourg, the ERUDITE laboratory (Equipe de Recherche sur l'Utilisation des Données Individuelles en lien avec la Théorie Economique) of Paris-Est Sup.