CONCEPT
Human Development Index
The UN measure that displaced GDP per capita as the primary indicator of national development — Sen's and Mahbub ul Haq's operationalization of the capability approach at the level of international policy.
The Human Development Index is the composite statistical measure created by the United Nations Development Programme to rank countries by human development rather than economic output alone. Developed in 1990 by Pakistani economist Mahbub ul Haq in close collaboration with Sen, it combines measures of life expectancy, education, and income to produce a single number that captures three dimensions of human flourishing. The HDI is the most widely adopted operationalization of the capability approach at the level of international policy, and its existence demonstrates that capability-sensitive measurement is not merely philosophical but practically achievable at global scale.
In The You On AI Field Guide
The HDI emerged from dissatisfaction with GDP per capita as the dominant development indicator. GDP measures aggregate economic output; it says nothing about distribution, about whether growth translates into improved lives for the people nominally benefiting from it. Countries with high GDP per capita could rank low on life expectancy or education, and countries with modest GDP