What does the GDI measure?

The GDI measures differences between male and female achievements in three basic dimensions of human development: health, education and command over economic resources. Gender disaggregated data is used in each dimension. The health dimension is captured by female and male life expectancy at birth. Education is measured using two indicators - female and male expected years of schooling for children, and female and male mean years of schooling for adults ages 25 and older. Command over economic resources is measured by female and male estimated earned income.