Nowadays, in spite of the great amount of qualitative discussions in management about the teams’ role, there are no formal models of team building and functioning. Generally a team is defined as a community of people, who implement joint activity and possess common interests, which is able to achieve goals autonomously and coordinately under minimal control.The paper considers the model, based on the concept of the reflexive game, which describes and explains team building in terms of hierarchy of agents’ beliefs about types of each other. From game-theoretical point of view a team is a set of agents, who implement joint activity and whose actions form stable informational equilibrium. The analysis allows concluding, that the stability of team is possible also under false consistent beliefs of its members. Formal model of the team-building process leads to the corresponding management problem, which is formulated and solved in the paper.
