Lucas Girard

Post-Doctoral Researcher in Econometrics

• Address: 5 avenue Henry Le Chatelier, Palaiseau, 91120, France
• Office: 4097
• E-mail: lucas.girard[at]ensae.fr
• Personal Website: https://faculty.crest.fr/lgirard/

Biography

Between 2017 and 2021, I completed my Ph.D. in econometrics at CREST (Center for Research in Economics and Statistics) under the supervision of Xavier D’Haultfoeuille.
I worked as a Teaching Fellow (2020-2022) and a Teaching Coordinator in mathematics (2022-2024) at ENSAE Paris.
I have been working as a postdoctoral researcher at CREST since September 2024 under the supervision of Elia Lapenta.

I am interested in econometric theory and its application, with three main themes of research as of now:

1. Reliable (robust to the “small-unit bias”) measures of polarization/segregation.
2. Nonasymptotically valid (coverage at least the nominal level for finite sample sizes) confidence intervals in linear regressions and in more general settings.
3. Reproducing Kernel Hilbert Spaces (RKHS) estimation tools in Nonparametric Instrumental Variables (NPIV) regressions.

Last but not least, I like teaching and think it is a vital complement to research and how to communicate and convey it. I have taught as a teacher assistant for maths, econometrics, statistics, and microeconomics courses at ENSAE, and as a lecturer at ENS Paris-Saclay (“Intermediate Econometrics” in the Master of Economics program) and at Ecole Polytechnique (“Mathematical Tools for Economics” in the Bachelor of Science program).