Human Development Index (HDI) Explained

By YESPYQ · Updated July 2026 · 5 min read
Quick answer

The Human Development Index (HDI) is a composite measure of average achievement in human development, published by the United Nations Development Programme (UNDP) in its Human Development Report.

The Human Development Index (HDI) is a composite measure of average achievement in human development, published by the United Nations Development Programme (UNDP) in its Human Development Report.

Three dimensions

HDI combines three dimensions: a long and healthy life (life expectancy at birth), knowledge (mean and expected years of schooling), and a decent standard of living (Gross National Income per capita).

Why it matters

HDI shifts the development focus from income alone to people's capabilities, and countries are ranked as low, medium, high or very high human development.

Why it matters for UPSC

HDI's publishing body (UNDP) and its three dimensions are among the most frequently tested index facts.

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Frequently asked questions

Who publishes the Human Development Index?

The United Nations Development Programme (UNDP).

What three dimensions make up the HDI?

Health (life expectancy), education (years of schooling) and income (GNI per capita).