Unanticipated Consequences of Union-Management Cooperation: An Interrupted Time Series Analysis

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Abstract
In this article, the authors compare the grievance rates an organizational subunit experienced prior to, during, and after a union-management cooperative effort. This participative program provided a naturally occurring field experiment with multiple time-interval pretest measures, treatment removal, and a no-treatment, nonequivalent (intact) control-group design subject to interrupted time series analysis. Markedly fewer grievances occurred during the joint, cooperative effort than during the periods prior to and after the implementation of the one-year experimental program. The authors offer their observations and discuss the implications of these findings for the grievance process and union-management cooperative arrangements.