• The evolution of inequality in productivity and wages : panel data evidence 

      Salvanes, Kjell Gunnar; Faggio, Giulia; Reenen, John Van (Discussion paper, Working paper, 2007-08)
      There has been a remarkable increase in wage inequality in the US, UK and many other countries over the past three decades. A significant part of this appears to be within observable groups (such as age-gender-skill ...