Emilien Ravigné

Emilien Ravigné

Postdoctoral researcher in Economics

INET, Oxford University

Biography

I am a postdoctoral researcher in Environmental Economics at the University of Oxford.

I study the conditions for a fair transition, mainly in France and the UK. My work assesses the distributional impacts of net zero policies on households and how green technical change and climate policies impact productivity, labour and capital, hence the distribution of income.

I am based at INET, the Institute for New Economic Thinking at the Oxford Martin School and the Smith School of Enterprise and the Environment. I am working on the PRINZ project for a productive and inclusive net zero in the UK, since January 2023.

I hold a PhD in Economics from Université Paris-Saclay ( CentraleSupélec, LGI) and CIRED and a Master in Engineering from Ecole Centrale Paris. You can download my PhD thesis from here.

Interests

  • Environmental policies
  • Technical change and growth economics
  • Inequalities

Education

  • PhD in Economics, "Fair climate policies and technical change. Essays on distributional impacts and social acceptability on the path to net zero", Jan. 2019 - Dec. 2022

    Université Paris-Saclay

  • MSc in Environmental Economics, 2018

    AgroParisTech (Université Paris-Saclay)

  • MSc in Industrial Engineering, 2018

    CentraleSupélec (Université Paris-Saclay)

Publications

December 2022

[PhD dissertation] Fair climate policies and technical change: essays on distributional impacts and social acceptability on the path to net zero

PDF
Emilien Ravigné, Frédéric Ghersi, Franck Nadaud
March 2022 Ecological Economics, 196

Is a fair energy transition possible? Evidence from the French Low-Carbon Strategy

The distributional consequences of environmental policies are a major issue for the public acceptability of energy transitions, as the Yellow-vest demonstrations highlighted. Our objective is to assess the short and mid-term distributional impacts of policy packages on firms and households – rather than of single policy instruments - including carbon taxing, technology adoption subsidies and compensating lump-sum transfers.
PDF DOI
Emilien Ravigné, Pascal da Costa
February 2021 Energy Policy, 149

Economic and environmental performances of natural gas for heavy trucks: A case study on the French automotive industry supply chain

This paper is a micro-simulation of the adoption of compressed natural gas in heavy-duty vehicles based on real French data on industrial flows in 2018 from the automotive manufacturer Renault. We show that bio-sourced natural gas can be cost-effective for heavy-duty trucks and that detours to reach refuelling stations are key parameters for emissions. That is why fossil natural gas trucks emit more than diesel trucks in real conditions due to low-density of refuelling network.
PDF DOI

Working Papers

Emilien Ravigné, Mehdi Senouci
November 2022

Disentangling the directions of technical change: a new growth accounting method

Current growth theories do not allow for the study of the bias of technical change and the evolution of factor shares —- at aggregate nor sectoral level — without strong assumptions on the elasticity of substitution between capital and labour. We present a growth accounting framework that disentangles the different factor-saving directions of technical change and factor substitution. We build the framework for two primary factors, capital and labour. We represent technical change as the shift of a Leontief production function to a new function which is the convex hull of two shifts of this Leontief production function, one purely labour-saving, the other purely capital-saving. We apply this framework to industry-level data to answer the following questions. What has been the bias of technical change? Does an increase in the price of one factor spurs specific factor-saving innovation? Can we forecast the evolution of factor shares? We find that most industries are capital-biased but with a growing trend of labour-saving technical change. In some industries, we find significant evidence of labour-saving technical change induced by the cost of labour. The framework is validated by better forecasting the evolution of the factors shares than CES, Cobb-Douglas and Leontief functions.
Emilien Ravigné, Franck Nadaud
January 2022 CIRED Working paper

Can a carbon tax increase emissions? The backfire effect of carbon tax recycling

Recycling the revenues of a carbon tax can mitigate the distributional impacts and lowers the burden on the lowest income deciles. However, a lump-sum rebate to households induces consumption, hence emissions. In this paper, we study the existence of a backfire effect where emissions increase above the pre-tax level because of the recycling of carbon tax revenues.
PDF

Work in Progress

Emilien Ravigné, Frédéric Ghersi, Franck Nadaud
February 2022

Designing and calibrating carbon tax reycling schemes

Grants & Projects

European Project Eramus+: Europe Sri Lanka Capacity Building in Energy Circular Economy

Task Leader in “EUSL-Capacity” European project (Europe Sri Lanka Capacity Building in Energy Circular Economy) Partners: KTH Stockholm, Univ. of Twente, CentraleSupélec, Univ. of Moratuwa, Univ. of Ruhuna, Open University of Sri Lanka, Univ. of Peradeniya.

The Europe Sri Lanka Capacity Building in Energy Circular Economy Project aims to facilitate digital education, with the high-level input of these well renowned EU universities, to create a new Master’s program on Energy Technology that isprimarily focused on the energy-related challenges in Sri Lanka. The project is a partnership with three Universities from the European Union and four universities from Sri Lanka.

ADEME project, French Environment Agency (ADEME),

Evaluation of the distributive impacts of the National Low-Carbon Strategy (CNRS contract n°165267)

Teaching

In charge

Micro-economics and game theory

Creation/In charge/Lectures/Tutorials
ESSEC x Université Paris-Saclay (CentraleSupélec), Master of Data Science and Business Analytics-M1, 15h (en) - Fall 2019

Economic modelling of climate change

Weekly intensive course - Creation/In charge/Lectures/Tutorials
Université Paris-Saclay (CentraleSupélec), Bachelor of Engineering-L3, 35h (fr) - Spring 2019, 2020, 2021

Lectures

Inequalities in Growth Economics

Université Paris-Saclay, (CentraleSupélec), Master of Engineering-M1, 4.5h (fr) - Fall 2020, 2021

Introduction to Environmental Economics

Paris-Diderot University, Master of Applied Economics-M2, 3h (fr) - Spring 2021, 2022

Distributive impacts of environmental policies

Institut Polytechnique (ENSTA), Master of Engineering-M1, 3h (fr) - Spring 2021, 2022

Environmental Economics

Université Paris-Saclay (Univ. Versailles-St-Quentin-en-Yvelines), Master in Nuclear Energy-M1, 9h (en) - Spring 2020, 2021, 2022

Tutorials

Introduction to Economics

Université Paris-Saclay, (CentraleSupélec), Master of Engineering-M1, 21h (en & fr) - Fall 2018, 2019, 2020

Growth and Innovation Economics

Université Paris-Saclay, (CentraleSupélec), Master of Engineering-M1, 9h (fr) - Fall 2019, 2020, 2021

Advanced Economics

Université Paris-Saclay, (CentraleSupélec), Master of Engineering-M1, 9h (fr) - Fall 2018

Industrial Engineering

Université Paris-Saclay, (CentraleSupélec), Bachelor of Engineering-L3 (fr) - Fall 2018 (27h), Spring 2019 (6h)

Various MOOCs

EUSL – Energy Capacity Building and Circular Economy in Sri Lanka (digital Master)

Climate change economics / Introduction to externalities – Price and quantity approaches / Ecosystem services / Impact pathway approach

Contact