The index was developed in 1990 by Indian economist Amartya Sen and Pakistani economist Mahbub ul Haq Countries fall into four broad human development categories , each of which comprises 47 countries : Very High Human Development , High Human Development , Medium Human Development and Low Human Development ( 46 countries in this category ) .
The index was developed in 1990 by Pakistani economist Mahbub ul Haq and Indian economist Amartya Sen. Countries fall into four wide human development categories , each of which has 47 countries : Very High Human Development , High Human Development , Medium Human Development and Low Human Development ( 46 countries in this category ) .