ABSTRACT
In much of the discussion of wage equations, the role of the trade union in setting the nominal wage level in a highly unionised economy like the UK has generally either been disregarded or treated as a source of exogenous 'militancy1. There are, however, distinguished exceptions in the literature and the number is steadily increasing; the earliest contribution was Sargan (1964), and recently Johnston (1972), and Johnston and Timbrell (1973).
