The Social Institutions and Gender Index is an innovative measure of underlying discrimination against women for over 100 countries. While other indices measure gender inequalities in outcomes such as education and employment, the SIGI helps policy-makers and researchers understand what drives these outcomes. The SIGI captures and quantifies discriminatory social institutions - these include among others, early marriage, discriminatory inheritance practices, violence against women, son bias, restrictions on access to public space and restricted access to productive resources. Methodology can be found at the GenderIndex page. The 2009 data is separate.