Each year, CREST goes beyond its borders to find new minds to keep on offering pioneer research. This year, CREST was able to attract new talents from all around the world (Canada, France, Italy, Switzerland, UEA, UK and USA). These new recruits bring with them a wealth of knowledge, diverse experiences, and a passion for pushing the boundaries of their respective fields. New recruits is always very much appreciated by our PhD students and students from ENSAE Paris, ENSAI and École polytechnique, where they may teach as they arrive with a different background and knowledge base.
As CREST continues to produce groundbreaking research about and for society, the arrival of these scholars marks a significant milestone in our journey. Each professor brings unique expertise that will not only enhance our ongoing projects but also open new avenues for exploration and discovery.
In this article, we will introduce you to our new researchers, delve into their backgrounds, and share their specializations that will contribute to the vibrant research environment at CREST.
Economics
Laurent Bach, Visiting Professor (ESSEC)
Interests: Entrepreneurial Finance, Corporate Governance, Household Finance, Public Economics, Political Economy
Current position: Laurent is currently and Associate Professor of Finance at ESSEC Business School
Laurent completed is PhD from Paris School of Economics in 2010
Federico Di Pace, Associate Professor (ENSAI)
Interests: Monetary Economics, macro-labor, international economics and applied econometrics
Previous position: Federico was previously a Senior Economist at the Bank of England.
Experienced Senior Economist with a demonstrated history of working in the academia and central banking, Federico conducted economic research with particular focus on labor markets and its interaction with monetary policy. He has conducted academic policy pieces using applied theory and time series econometrics. Federico completed his PhD in Economics at Birkbeck College, University of London.
https://sites.google.com/site/federicodipace/home?authuser=0
Yameng Fan, Assistant Professor (ENSAI)
Interests: Macroeconomics of labor markets, political economy, market power and spatial economics.
Previous position: PhD in Economics from Universitat Pompeu Fabra.
Florian Grosset, Assistant Professor (ENSAE Paris, Institut Polytechnique de Paris)
Interests: Development and environmental economics with interests in labor and firms
Previous position: PhD in Sustainable Development from Columbia University
The first strand of his research focuses on labor and networks in lower-income countries. His work explores how individuals’ labor supply decisions are influenced by their social network members, primarily with field experiments. The second strand of Florian’s research focuses on firms’ responses to environmental changes. It combines insights from the natural sciences with applied micro-economic tools for causal identification.
Marion Leroutier, Assistant Professor (ENSAE Paris, Institut Polytechnique de Paris)
Interests: Applied Environmental Economics focusing on two major environmental issues, ambient air pollution and climate change.
Previous position: Postdoctoral fellow at the Institute for Fiscal Studies.
Marion’s research agenda has two angles. First, she investigates the societal cost of air pollution and the causal impact of climate and environmental policies, with an emphasis on health, productivity and distributional effects. In a second and more early-stage angle, Marion studies the determinants of support for green policies, in particular the role of social norms and identity.
Bertille Picard, Assistant Professor (ENSAI)
Interests: Econometrics, Machine Learning applied to policy evaluation and inequalities.
Previous position: PhD in Economics at Aix-Marseille School of Economics (AMSE)
Yuki Tamura, Assistant Professor (École polytechnique, Institut Polytechnique de Paris)
Interests: Micoeconomic Theory, Market Design, Social Choice and Political Economy.
Previous position: Postdoctoral Associate at the Center for Behavioral Institutional Design, NUY Abu Dhabi.
Finance-Insurance
Roxana Dumitrescu, Associate Professor (ENSAE Paris, Institut Polytechnique de Paris)
Interests: Financial Mathematics, Stochastic Control, Stochastic Differential Games, Mean-field Games, Backward Stochastic Differential Equations, Energy Markets, Machine Learning.
Previous position: Associate Professor in Financial Mathematics at King’s College of London.
Sociology
Samuel Rufat, Assistant Professor (École polytechnique, Institut Polytechnique de Paris)
Interests: Urban Geography, Urban Studies, Spatial Analysis, Socio-Economic Inequalities, Segregation, Socio-Spatial Reconfigurations, Environmental justice, …
Previous position: Lecturer at CY Cergy Université Paris Cité (Géographie-cités)
Hesu Yoon, Assistant Professor (ENSAE Paris, Institut Polytechnique de Paris)
Interests: Inequality, Poverty, and mobility, Community and Urban Sociology, Race, Gender and Class, Cultural Sociology, Social Psychology, Computational Social Science, Mixed Methods.
Previous position: PhD in Sociology at Stanford University.
Hesu’s research asks longstanding questions about spatial inequality in urban sociology: Why do some neighborhoods (or cities) grow by attracting people and capital while others do not? How does this place stratification intersect with racial and class-based inequalities? Combining experimental, computational, and qualitative approaches, she interrogates high-status consumers and place entrepreneurs – such as business owners, landlords, and travel writers – who have the power to mold physical, economic, and symbolic urban landscapes.
Statistics
Vincent Divol, Assistant Professor (ENSAE Paris, Institut Polytechnique de Paris)
Interests: Topics at the intersection of statistics and geometry, including statistical optimal transport, geometric inference and topological data analysis.
Previous position: Junior AI Fellow at Université PSL.
Marie-Pierre Etienne, Associate Professor (ENSAI)
Interests: Development of statistical methods for ecology.
Previous position: Assistant Professor at Agrocampus Ouest.
Marie-Pierre is mainly interested in the use of stochastic processes to model and infer biological processes, particularly ecological processes.
Recently she focused mainly on movement ecology application and the development of statistical methods to extract knowledge from the study of animals, but also fishing vessels movement.
Sébastien Herbreteau, Assistant Professor (ENSAI)
Interests: Statistical and Machine Learning Methods for image processing, inverse problems, optimization and mathematical understanding of neural networks.
Previous position: Postdoctoral Fellow in the Biomedical Imaging Group at the Ecole Polytechnique Fédérale de Lausanne.
Emmanuel Pilliat, Assistant Professor (ENSAI)
Interests: Machine Learning and High-Dimensional Statistics.
Previous position: Postdoctoral Fellow at ENS Lyon.
Ludovic Stephan, Assistant Professor (ENSAI)
Interests: Random graphs, inference problems, machine learning theory.
Previous position: Postdoctoral Fellow in the idePHICS lab at Ecole Polytechnique Fédérale de Lausanne.
My research interests involve the rigorous study of statistical-physics inspired methods, from belief propagation to replica equations.