This paper argues that worker participation has not evolved out of the humanization of capitalism, as is usually suggested, but has appeared cyclically. These cycles are traced over more than a century and are shown to correspond to periods when management authority is felt to be facing challenge. Participation is thus best understood as a means of attempting to secure labour's compliance. However, the framework of common interests upon which participation is premised is untenable, and in practice the efficiency of such schemes in Britain has been for the most part severely attenuated by the realities of structural conflict.