The UNDP (UN Development Programme) publishes two composite indexes of gender equality, based on traditional indicators (such as the above-mentioned ones in the GID-DB), namely the Gender Empowerment Measure, or GEM, and the Gender-related Development Index or GDI.
The SIGI and its 5 components were added in 2009 to the GID-DB, readily accessible (as described below) as a specific part of the latter [REF].