GrievanceThis study examines the differences between blue-collar and white-collar employees with respect to grievance behavior in the work place. Specifically, the grievance-filing behavior of blue-collar and white-collar bargaining unit workers-members of the same union local-were compared with respect to number o factions, their severity, and their outcomes. Analyses of these grievances (n = 604) indicated gross differences in the grievance-filing activity of these groups. These groups are, however, invariant with respect to severity or outcomes of the contested issues.