1 Forthcoming in The Phenomenology of Emotion Regulation: Feeling and Agency, edited by Thomas Fuchs and Philipp Schmidt. Oxford University Press. Please quote from published version! The Regulation of Shared Emotions from Within: A Co-Regulation Approach Mikko Salmela Center for Subjectivity Research, University of Copenhagen; Practical Philosophy, University of Helsinki ORCID-ID: 0000-0002-9988-3274 Alessandro Salice 1 University College Cork ORCID-ID: 0000-0002-7255-2889 Abstract We provide a theoretical account of the co-regulation of shared emotions within small egalitarian groups such as work groups and research teams. Previous research has not addressed co-regulation of shared emotions and it is unclear whether or to what extent current models of emotion regulation are applicable in this task. To remedy these shortcomings, the paper develops an account of emotional co-regulation (ECR) in two steps. First, we refine the idea of shared emotions in egalitarian groups, positing shared emotions as structures of participatory emotions that rely on group-identifying co-experiencers. Second, we propose that ECR is a collaborative endeavor where participants of a shared emotion collectively strive to change their emotion. We show that ECR develops along two axes (the controlled-spontaneous axis and the explicit-implicit axis) and that it may utilize all nodal points of Gross’s process model of emotion regulation. Keywords: Emotion Regulation; Emotional Co-Regulation; Group Identification; Joint Action; Shared Emotion 1 The authors contributed equally to this article.