Incomplete Information, Unawareness, and Psychological Games

July 6 – July 17, 2026

Maastricht University

Register: The registration deadline is June 1, 2026. To register, first pay the registration fee of 120 euros (see below), then make a picture or screenshot of your bank transfer, and subsequently fill in the registration form.

In the registration form, you need to upload this picture or screenshot as a proof that you have paid the registration fee.

With the registration fee you obtain, amongst other things, a copy of the textbook “From Decision Theory to Game Theory: Reasoning About the Decisions of Others” by Andrés Perea, on which the workshop is based.

Register early: We can only allow 30 students to the workshop. So please be early with your registration. The first 30 students who register will be able to follow the workshop.

Registration fee: The registration fee is 120 euros. Please transfer 120 euros, mentioning “Order number 45290000024N EGT” and your name, to:

Maastricht University

IBAN: NL05 INGB 0657 6187 05, SWIFT (or BIC) code: INGBNL2A

Bank address: ING Bank, Oost-Brabant BB, Schimmelt 36, 5611 ZX Eindhoven, The Netherlands

Beneficiary address: Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands

Please mention clearly “Order number 45290000024N EGT” and your name.  Otherwise we cannot trace your payment! The fee has to be paid before June 1st, 2026.

Without the payment of the registration fee, your registration is not complete.

For the fee of 120 euros you will get: a copy of the book that is used for the workshop, coffee, tea and cookies during the breaks, a lunch after the city walk on Saturday, and an enjoyable workshop. 

About this workshop: The EPICENTER, our research center on Epistemic Game Theory at Maastricht University, offers this two-week intensive workshop as an introduction to the blooming field of Epistemic Game Theory. This field takes a new, fresh approach to game theory, and studies how people reason in game theoretic situations before they eventually make a choice. More precisely, it explores how we reason about the minds of others before we make a choice. Hence, the reasoning of people like you and me is at the center stage of epistemic game theory.

In this workshop, we focus on games with incomplete information, games with unawareness, and psychological games. In games with incomplete information, a player may be uncertain about the utility functions of some of his opponents. In a game with unawareness, a player may be unaware of some of the choices that his opponents can make. In a psychological game, the preferences of a player may depend on what he believes that the opponent believes about his choice.

For each of these games, we explore the central reasoning concept of common belief in rationality, and see what happens if we assume correct or symmetric beliefs.

Last year’s workshop was based on a different book: “Epistemic Game Theory: Reasoning and Choice” by Andrés Perea, and covered different topics. To follow this year’s workshop, it is not necessary to have followed the previous edition. In fact, you should be able to follow this year’s course without having any prior knowledge about game theory. The course is completely self-contained.

Audience: The course is primarily meant for advanced bachelor students, master students, research master students and PhD students all over the world, but researchers are also very welcome.

Instructors The instructors for this workshop are Christian Bach (University of Reading, UK),  Ákos Balázs (Corvinus University at Budapest, Hungary), Rubén Becerril (Universidad Autónoma Metropolitana de Mexico), Niels Mourmans (Central Bureau of Statistics, Netherlands), Andrés Perea (Maastricht University, Netherlands) and Joep van Sloun (Maastricht University, The Netherlands) — all members of our EPICENTER. For more information about the instructors, click here

Literature: The workshop will be based on the new textbook “From Decision Theory to Game Theory: Reasoning about the Decisions of Others” by Andrés Perea. The book is published by Cambridge University Press in 2025.

There is no need to buy the book. You will receive a copy of this book at the beginning of the workshop.

Organization of the workshop: The workshop stretches over 10 days. Typically, a day consists of two theory lectures and one exercise session, where the two theory lectures cover one chapter from the book “From Decision Theory to Game Theory: Reasoning about the Decisions of Others”. In the exercise sessions we will discuss some problems from the book which you should prepare the day before. During the last two days, the students will work in groups on some overarching exercises that cover all the topics discussed in the workshop. At the last day, every group of students will present the solutions to one such overarching exercise. 

Certificate: If you attend at least 20 out of 24 sessions, and actively participate in the group presentation on the last day, you will receive an official certificate stating that you successfully followed the workshop. At your home university, you can use the certificate to obtain credits for the workshop.

Housing: If you would like to rent a room in Maastricht at a reasonable price during these two weeks, please visit: https://www.maastrichthousing.com/ . They offer rooms / apartments at a very reasonable price per day. On their website, indicate that you are a summer school student.

Previous editions: If you want to see some pictures from previous editions, and want to know which students participated and where they came from, please click here

Questions? If you have further questions, please send an E-mail to Andrés Perea at: course@epicenter.name

Location 

The course takes place at Maastricht University

Building of the School of Business and Economics

Tongersestraat 53, Maastricht

Room A1.22

Schedule