We examine how far the over-representation of women in part-time jobs can explain the gender gap in hourly earnings, and also investigate how far wage-setting institutions are correlated with the overall gender wage gap and the female part-time wage gap. Using European Union Statistics on Income and Living Conditions (EU-SILC) 2009 data for 11 European countries, we implement a double decomposition of the gender wage gap: between men and women employed full-time and between full-time and part-time working women. This shows that the wage penalty of women employed part-time occurs mainly through the segregation of part-time jobs, but the full-time gender pay gap remains mostly unexplained. At the macro level, the gender wage gap tends to be higher in countries where part-time employment is more widespread. Some wage-setting institutions seem to reduce the female full-time/part-time pay gap and the gender gap among full-time workers.
From wage regulation to wage gap: how wage-setting institutions and structures shape the gender wage gap across three industries in 24 European countries and Germany