This paper outlines a "collective voice" approach for examining the behavioral determinants of variation in strike activity at the organizational level. The author argues that strikes should be viewed primarily as expressions of worker discontent rather than a result of imperfect or asymmetrical information. An analysis of survey data collected from 1 12 Canadian firms in 1980-81 indicates that managerial practices, operations size and technology, product market structure and conditions, union politics, and various other factors that influence the behavioral context of negotiations are significantly related to days lost due to strike activity. These findings are generally consistent with predictions from the collective voice approach. OVER the past decade, the quantitative literature on strike activity has been dominated by neoclassical economic models that attribute strikes primarily to imperfect or asymmetrical information. This literature does a great deal to advance our understanding of how economic and organizational conditions such as unemployment and bargaining structure affect the strategic interactions of negotiators and how this influence is reflected in strike activity (Franzosi 1989). But it fails to adequately account for sociological, psychological, and political considerations forming the behavioral context within which negotiations occur, despite a long history of behavioral analysis in the strike literature (Godard 1992c).