Print Email Facebook Twitter Social Agents? A Systematic Review of Social Identity Formalizations Title Social Agents? A Systematic Review of Social Identity Formalizations Author Scholz, G. (TU Delft Energy and Industry) Wijermans, Nanda (Stockholm Resilience Centre; Institute For Future Studies) Paolillo, Rocco (University of Bremen) Neumann, Martin (University of Southern Denmark) Masson, Torsten (University of Leipzig) Chappin, E.J.L. (TU Delft Energy and Industry) Templeton, Anne (The University of Edinburgh) Kocheril, Geo (University of Bremen) Date 2023 Abstract Simulating collective decision-making and behaviour is at the heart of many agent-based models (ABMs). However, the representation of social context and its influence on an agent’s behaviour remains challenging. Here, the Social Identity Approach (SIA) from social psychology, offers a promising explanation, as it describes how people behave while being part of a group, how groups interact and how these interactions and ingroup norms can change over time. SIA is valuable for various application domains while also being challenging to formalise. To address this challenge and enable modellers to learn from existing work, we took stock of ABM formalisations of SIA and present a systematic review of SIA in ABMs. Our results show a diversity of application areas and formalisations of (parts of) SIA without any converging practice towards a default formalisation. Models range from simple to (cognitively) rich, with a group of abstract models in the tradition of opinion dynamics employing SIA to specify group-based social influence. We also found some complex cognitive SIA formalisations incorporating contextual behaviour. When considering the function of SIA in the models, representing collectives, modelling group-based social influence and unpacking contextual behaviour all stood out. Our review was also an inventory of the formalisation challenge attached to using a very promising socialpsychological theory in ABMs, revealing a tendency for reference to domain-specific theories to remain vague. Subject FormalizationReviewSelf-CategorizationSocial ContextSocial IdentityTheory To reference this document use: http://resolver.tudelft.nl/uuid:bca085ae-19ca-4173-8c62-dc20b1ed2779 DOI https://doi.org/10.18564/jasss.5066 ISSN 1460-7425 Source Journal of Artificial Societies and Social Simulation, 26 (2) Part of collection Institutional Repository Document type journal article Rights © 2023 G. Scholz, Nanda Wijermans, Rocco Paolillo, Martin Neumann, Torsten Masson, E.J.L. Chappin, Anne Templeton, Geo Kocheril Files PDF 6.pdf 1.98 MB Close viewer /islandora/object/uuid:bca085ae-19ca-4173-8c62-dc20b1ed2779/datastream/OBJ/view