This book examines the problem of staff loyalty. The differences between “young” and “old” organizations are analyzed as decisive factors in the phenomenon of loyalty. The reasons for disloyalty are identified and measures to neutralize this negative phenomenon are proposed. In addition, the role of the manager in the formation and maintenance of loyalty is analyzed. An algorithm for sociological research on the topic of loyalty of “old” and “new” employees is proposed. For executives, HR managers and everyone who is interested in this problem of business psychology.