The report according to the ILO ' contributes to the United Nations 2030 Agenda for Sustainable Development by making comparative data and information on recent wage trends available to governments, social partners, academics and the general public. These trends show that global real wage growth dropped sharply during the post-2008 economic crisis, recovered in 2010, but has since decelerated. " and " More specifically, the report analyses the extent to which overall wage inequality is the result of wage inequality between enterprises and wage inequality within enterprises."
There is also a youtube video at https://youtu.be/JsSHGz4Q3kw
The 8 page summary can be located at http://www.ilo.org/global/research/global-reports/global-wage-report/2016/WCMS_537982/lang--en/index.htm
The report covers range of mechanisms to help with wages grow and inequity, including stronger labour institutions ( that means unions !! ) - Greg McLean