This study, utilizing data from the 1977 Quality of Employment Survey, finds important differences in the way labor is managed among unionized and nonunion workers, as well as among unorganized workers who are willing to vote for unionization and those who are not. Furthermore, components of “bureaucratic control” are found to inhibit unionization and the desire to unionize. The effect of these labor management mechanisms persists even in a structural model of the determinants of unionizat