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).
You can contact me at tordjman[at]stanford.edu.
I'm currently visiting the Hausdorff Institute for Mathematics at the University of Bonn.
I sometimes post piano-related things here.
Under Revision
The Limits of Auctions under Ex-Ante Collusion (with R. Jagadeesan and I. Segal, 2026)
Revision requested at Econometrica
Ex-Ante Individually Rational Trade (with R. Jagadeesan, 2025)
Revision requested at AEJ: Micro
Working Papers
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
Collusion-Robust Efficient Implementation: Holdout and the Anti-Core (with R. Jagadeesan and I. Segal)
Draft coming soon
Private Perspectives and Cancellation (with D. Chen and R. Sethi)
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