Few skilled workers in the UK have flexible working time - GPs are the exception - most can only choose between unemployment, or full-time work, which has changed little in recent years, while part time work is mainly unskilled. This market rigidity imposes major welfare losses, in contrast to...

The non-constancy of factor shares is drawing the attention of many researchers. We document an average drop of the labour share of 8 percentage points for eight European countries and the US between 1980 and 2007. We investigate theoretically and empirically two mechanisms: the substitution...