Trade union decline and union wage effects in Australia

Union density in Australia fell precipitously in the 1990s. This study investigates how union wage effects may have changed as a result. The findings from 1993 data suggest that union/nonunion wage differentials were very small, especially among workers in high-density industries. By 2001 the overall union wage effect had increased significantly; however, the union/nonunion wage differential was no longer correlated with union density at the industry level.