This paper examines the influence of unions on 37 human resource manag
ement practices, ranging from hiring policies to promotion practices.
The logistic regression results show that unionization is positively a
ssociated with a more formal approach to human resource management. Th
ere is, however, a shift from performance-based payment systems and pe
rformance appraisal (P.A.) functions in unionized settings. The result
s also indicate that union firms are more selective of new hires by ad
opting a formal probationary period for new employees. Last, the estim
ates suggest that the impact of unions on training programs varies wit
h the nature of the programs.