This paper examines changes in unionization that have occurred over the last decade or so using individual level micro data on twenty seven of the thirty OECD countries, with particular emphasis on Canada, the United Kingdom and the United States. Micro-data is also used to model union...

This paper uses broadly comparable micro data at the level of the individual to examine the extent to which union relative wage effects vary across groups and through time. The main findings may be summarized as follows. a) The union wage gap averages 15% in the US and 10% in Great Britain. b)...