Hello ! I am a PhD candidate in economics at Stanford University. Prior to joining Stanford, I studied at Ecole Polytechnique. I also hold master's degrees from ENSAE (in statistics) and from Institut Polytechnique de Paris/HEC Paris (in economics). Here is a CV.
You can contact me at tordjman[at]stanford.edu.
I sometimes post piano-related things here.
Under Revision
The Limits of Auctions under Ex-Ante Collusion (with R. Jagadeesan, I. Segal and K. Wu, 2026)
R&R at Econometrica
Ex-Ante Individually Rational Trade (with R. Jagadeesan, 2025)
R&R at AEJ: Micro
Working Papers
Robustly Efficient Implementation Under Collusion: Holdout Threats and the Anti-Core (with R. Jagadeesan and I. Segal, 2026)
Axiomatics, personal judgments and fair sharing rules for conflicting water needs (with B. Ouvrard and A. Reynaud, 2023)
Work in Progress
Corruption in Auctions: a Foundation for the Second-Price and Dutch Auctions (with T. Ayrapetyan)
Extended abstract to appear in the Proceedings of the 27th ACM Conference on Economics and Computation [EC'26]
Draft coming soon
Private Perspectives and Cancellation (with D. Chen and R. Sethi)
In progress
Costly Off-Path Commitment
In progress
Teaching
Stanford University
Teaching Assistant for Graduate Microeconomics II (Game Theory) - ECON 203
Instructor: Paul Milgrom - Winter 2026
Instructor for Economics Department Math Camp - Summer 2025
France (in French)
Teaching Assistant for Undergraduate Microeconomics I (GE) - MICRO 2AD - ENSAE Paris
Instructor: Hugo Molina - Summer 2026
Oral Examiner for Undergraduate Preparatory Classes (PSI*) - Mathematics - Institution Sainte Marie d'Antony
Instructor: Frederic Butin - AY 2021-2022