TY - JOUR AU - Maximiliano Senci, Carlos AU - Abel Tohmé, Fernando PY - 2021/09/29 Y2 - 2024/03/28 TI - Similarity as an extension of symmetry and its application to superrationality JF - Manuscrito: Revista Internacional de Filosofia JA - Manuscrito - Rev. Int. Fil. VL - 44 IS - 2 SE - Artigos DO - UR - https://periodicos.sbu.unicamp.br/ojs/index.php/manuscrito/article/view/8667160 SP - 128-157 AB - <p>n this paper we present a concept of&nbsp;<em>similarity</em>&nbsp;in games, on which to ground alternative solution concepts, some of which differ from the classical notions in the field. In order to do this we impose a constraint on players’ beliefs that amounts to a variant of the well-known symmetry principle in classical bargaining theory. We show how this similarity relation helps to identify different Nash equilibria in games, and how these “similar Nash equilibria” can be extended to non-symmetric games. While the notion is normative, it is nonetheless inspired by phenomena in which similarities between players lead to outcomes detected in behavioral studies. We study the strategic properties of the concept of similarity and discuss its relationships with Hofstadter’ notion of superrationality.</p> ER -