What are the three components of the UN HDI, and how is each component measured?

What are the three components of the UN HDI, and how is each component measured?

• A. Life expectancy at birth (health); education (mean years of schooling for adults and expected years of schooling for children); GNI per capita at PPP (standard of living).
• B. Life expectancy at birth; GDP per capita; literacy rate.
• C. Infant mortality rate; education (years of schooling); GDP per capita at nominal exchange rate.
• D. Healthy life expectancy; education (mean years of schooling); GNI per capita at market exchange rate.

Answer: (A)

The UN HDI combines three dimensions to capture how people live, learn, and earn. Health is measured by life expectancy at birth, which shows how long people can expect to live and serves as a proxy for overall health conditions, healthcare access, and living standards. Education uses two indicators: mean years of schooling for adults and expected years of schooling for children, combining current educational attainment with future schooling opportunities to reflect both existing knowledge and future potential. Standard of living relies on Gross National Income per capita at PPP, which adjusts for price level differences across countries so comparisons reflect real living standards rather than currency values.

The UN HDI combines three dimensions to capture how people live, learn, and earn. Health is measured by life expectancy at birth, which shows how long people can expect to live and serves as a proxy for overall health conditions, healthcare access, and living standards. Education uses two indicators: mean years of schooling for adults and expected years of schooling for children, combining current educational attainment with future schooling opportunities to reflect both existing knowledge and future potential. Standard of living relies on Gross National Income per capita at PPP, which adjusts for price level differences across countries so comparisons reflect real living standards rather than currency values.