26th International Conference on Group Decision and Negotiation, GDN 2026

June 28 – July 1, 2026 | University of Economics in Katowice, Poland

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GDN 2026

The International Conference on Group Decision and Negotiation (GDN) has provided a forum for scholars working in the field since 2000, bringing together researchers from around the world. It fosters a stimulating environment for the dissemination of state-of-the-art knowledge in group decision and negotiation, enabling intensive discussions among participants as well as the exchange of ideas and critical feedback aimed at further development of the field. The conference also includes a student track, offering pre-doctoral students an opportunity to present their preliminary work and receive valuable feedback.

June 28 – July 1, 2026

Katowice, Poland

Conference Language: English

Format: In-person

Registration Fee Includes

General, GDN Section Member and Student registrations cover a full conference package, including:

Scientific sessions

Access to all conference sessions, including the Doctoral Consortium.

Conference materials

PDF versions of the GDN Springer Proceedings and Local Proceedings, and printed conference materials.

Social events

Welcome reception, Gala Dinner, and a visit to a local museum.

Meals

Coffee breaks and lunches.

Registration Fees

Register by April 30, 2026, to take advantage of the Early Bird rates.
Regular rates apply after this date.

General

€480

Regular price after
April 30: €600

  • Full conference package
Register

GDN Members

€463

Regular price after
April 30: €583

  • Full conference package
  • Membership status will be checked with INFORMS
Register

PhD Students

€380

Regular price after
April 30: €500

  • Full conference package
  • Proof of PhD student status is required at check-in
Register

Accompanying Person

€120

Regular price after
April 30: €150

  • Welcome reception and Gala Dinner
  • Visit to a local museum
  • No access to sessions
Register

Frequently Asked Questions

Below you will find answers to the most common questions regarding registration, payment, and the conference venue.

e-Mail: gdn2026@gdnconference.org

Yes. During the registration process, please check the option “I require an invoice” and provide the necessary details, including your Tax ID / VAT Number and the legal name of your entity. The invoice will be sent to the email address provided.

Payments are processed online via Credit Card. Domestic participants (from Poland) may also use online bank transfers. Details will be provided at checkout.

The lower registration fee is available until April 30, 2026. After this date, regular rates apply.

Proof of PhD student status is required at the registration desk (check-in) upon arrival at the conference.

Yes. The registration form includes a dropdown menu for dietary requirements (Standard or Vegetarian). We will do our best to accommodate these preferences during lunches and the Gala Dinner.

This package includes admission to social events: the Welcome Reception, Gala Dinner, and a visit to a local museum. It does not include access to scientific sessions, conference materials, meals, or coffee breaks.

The main conference venue is the campus of the University of Economics in Katowice, located at Bogucicka Street. Detailed information on directions, the building, and the conference rooms can be found on the conference website under the “Programme” section.

Yes. Participants requiring a visa should contact the organizing committee at gdn2026@gdnconference.org after completing their registration and payment to request an official invitation letter.

Secure your spot today

Please remember that the lower registration fee (“Early Bird”) is only available until April 30, 2026. After this date, regular rates apply.