The next session of the RITM Economics Seminar will be held on Thursday, May 7, 2026.
This will be a special session, as we will have the pleasure of hosting Yannick Guyonvarch (INRAE-PSAE) for two consecutive events:
12:15-13:15 – Yannick will present his paper “Analytic inference with two-way clustering,” co-authored with Laurent Davezies and Xavier D’Haultfoeuille, in Room Gaudemet (Sceaux Campus).
Abstract: This paper studies analytic inference with two-way clustering. In such settings, commonly used approaches suffer from two main drawbacks: first, the associated variance estimator is not always positive; second, inference becomes invalid in non-Gaussian regimes, when the estimator of the parameter of interest is not asymptotically Gaussian. We propose a simple correction that addresses both issues. In Gaussian regimes, the resulting tests are asymptotically exact and equivalent to standard methods. In non-Gaussian settings, they remain asymptotically conservative. We also establish their uniform validity over a class of data-generating processes. Beyond our proposed tests, we highlight potential issues related to multiple testing and nonlinear estimators under two-way clustering, and we compare our approach with existing methods through simulations.
14:30-17:30 – Yannick will lead a Workshop on “Inference methods for staggered DiD designs.” This workshop, coordinated by Miren Lafourcade, Simon Reyburn, and Jean-Noël Senne, will take place in Room Imbert (Sceaux Campus).
We look forward to an engaging and stimulating whole afternoon of econometric discussions!
Link to the RITM Economics seminar web page