Booth, Alison2015-12-100927-5371http://hdl.handle.net/1885/39580A striking feature of the past few decades has been the development of wage-determination models that assume that labor markets are imperfectly competitive. This paper discusses two such models (trade unions and oligopsony), although there are many more.201410.1016/j.labeco.2014.06.0102015-12-09