This paper presents an initial formalization of teamwork in multi-agent domains. Although
analyses of teamwork already exist in the literature of multi-agent systems, almost no work
has dealt with the problem of teams that comprise self-interested agents. The main
contribution of this work is that it concentrates specifically on such teams of self interested
agents. Teams of this kind are common in multi-agent systems as they model the implicit
competition between team members that often arises within a team.