H. Gregg Lewis' estimates of the relative wage effect of unionism between 1920 and 1958 are routinely cited though they have rarely been subject to scrutiny. This paper extends Lewis' data to 1980 and, in particular, we construct a series on union membership that links up with the data available...

This paper represents the first empirical application of a model of trade union behavior that has been discussed in the literature for over thirty years. The wages and employment o typographers are examined to see whether they can be usefully characterized as the outcome of a process by which...