The direction of the Augustin Cournot Doctoral School would like to thank everyone who contributed to the success of the 13th edition of the Augustin Cournot Doctoral Days 2016. First of all thank you to all the participants, PhD candidates from France and Europe for coming and presenting their research. Congratulations to the winners of the ACDD Best Paper and Best Poster awards. Thank you to our PhD candidates from the ACDD 2016 committee: Marine André, Johanna Gouzouazi, Paul-Olivier Klein, Sila Ocalan, Cyrielle Poiraud, Arnaud Tamini, Vincent Vergnat. You have mastered the entire process of organizing an international conference, dealing with both scientific and logistic issues, and have selected very interesting papers. Thank you to the keynote speakers who gave remarkable speeches: Prof. Villeval (Lyon) and Prof. Rochet (Zurich). Thank you to our research centers (BETA, GESTE, HUMANIS, IRIST, LARGE) for financial support and all our senior collegues who discussed papers and/or chaired parallel sessions. Thank you to Prof. Florentz, VP Research and Doctoral Programs of the University of Strasbourg for her welcome speech to launch the ACDD 2016 and the Collège Doctoral Européen for hosting the conference. Thank you to all the administrative staff for helping organize the ACDD 2016. Thank you to the Art Café and City of Strasbourg for the gala dinner and the reception. A bientôt next year for the ACDD 2017 ! Pictures of the ACDD 2016 will soon be released via the conference website (http://www.acdd-conference.org/). Meanwhile you can see some pictures on our twitter account @EDACournot (check #ACDD2016 or jump directly to using this link)