Between June 15 and 18, 2025, the XXV International Conference on Group Decision and Negotiation, organized by INFORMS GDN, will take place in Zaragoza, Spain. The conference focuses on group decision-making and negotiation and serves as a forum for the exchange of ideas among professionals in this field, bringing together researchers and practitioners from all over the world.

For the past ten years, the thematic stream Preference Modeling for Group Decision and Negotiation, chaired by Prof. Danielle Morais Costa (UFPE, Recife, Brazil) and Prof. Tomasz Wachowicz (University of Economics in Katowice, Poland), has been a part of the conference. This track gathers a scientific community conducting research on the use of formal decision-support methods for preference analysis and for organizing and facilitating multi-person decision problems.

We cordially invite you to submit your contributions to the conference and to this thematic track. This year, submissions may take the form of full papers, extended abstracts, or posters.

The Call for Papers for the PMfGDN track can be downloaded via the following link: CFP_GDN_PMfGDN_2025.pdf

More information about the conference and the track can be found on the conference website: https://gdnconference.org/gdn2025/