Journal of Labor Research

, Volume 8, Issue 1, pp 59–65 | Cite as

The effect of type of union on member-nonmember wage differentials

  • Janet C. Hunt
  • B. F. Kiker
  • C. Glyn Williams


The union-nonunion wage differential can be decomposed into bargaining and membership effects. While some analysts suggest that they are not separable and that bargaining power is a function of membership density, others argue that they are separable and that the former derives from monopoly power while the latter stems from socialization. Our results support the latter view. We derive estimates of bargaining and membership effects for workers covered by national, industrial, and craft union contracts as well as for all covered workers taken together. Since industrial and craft unions differ in structure and organization, we expect differences in the socialization effects among types of unions. It is clear from our results that union membership per se in each case gives a large positive wage advantage.


Collective Bargaining Union Member Union Membership Monopoly Power Labor Relation Review 
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Copyright information

© Journal of Labor Research 1986

Authors and Affiliations

  • Janet C. Hunt
    • 1
  • B. F. Kiker
    • 2
  • C. Glyn Williams
    • 2
  1. 1.University of GeorgiaAthens
  2. 2.University of South CarolinaColumbia

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