The Human Development Index (HDI) — Living Standards & Development Indicators | IGCSE Economics

Exam Frequency Analysis

Past paper frequency (2018 to 2024)

This topic accounts for approximately 11% of your exam marks.

stable

Medium

Stable11%

GDP per capita limitations, HDI components, and living standards comparisons appear regularly in Section B; typically 8 to 12 marks.

The Human Development Index (HDI) is a composite index (combined single-number score) that captures three dimensions of human development: income, health and education. Each country gets an HDI score between 0 and 1; higher = more developed.

The three components

Component	What it measures	Captures...
GNI per capita (PPP-adjusted)	Average income per person	The economic dimension
Life expectancy at birth	Number of years a newborn can expect to live	The health dimension
Education	Mean years of schooling for adults + expected years of schooling for children	The dimension

The three are combined into a single score by the United Nations Development Programme (UNDP) each year. Countries are then ranked into very high, high, medium and low human development categories.

Why HDI is a better measure than GDP per capita alone

HDI directly addresses two of the four limitations of GDP per capita.

It includes health (life expectancy), capturing the non-monetary "you can be rich but unhealthy" dimension.
It includes education, recognising that a society with high literacy and many years of schooling has higher human capital and broader life chances.

Both health and education matter for living standards in their own right; they are not just inputs to higher future GDP. A country with high GDP but poor health and low schooling will have a noticeably lower HDI than its GDP rank suggests.

Limitations of HDI

HDI is broader than GDP per capita but is not perfect.

It still ignores inequality unless the inequality-adjusted version (IHDI) is used.
It does not capture gender equality, environmental sustainability or political freedom directly.
It puts equal weight on its three components, which is a normative choice.
It depends on data quality, which is weaker in some developing countries.

Exam tip

Explain two ways an event could reduce a country's HDI (4 marks)

What comes up: a 4-mark "Explain two ways [some event, e.g. flooding/disease/conflict] could lead to a fall in a country's HDI" — one mark per way identified, one mark per explanation.

Write (two marks each, pick two distinct components): (1) Education component — the event disrupts schooling (e.g. schools damaged or closed), reducing mean years of schooling or expected years of schooling, which lowers the education dimension of the HDI score. (2) Health component — the event causes an increase in disease or death, reducing life expectancy at birth, which lowers the health dimension of the HDI score. (3) Income component — the event destroys farmland, jobs or infrastructure, cutting household incomes and reducing GNI per capita, which lowers the income dimension of the HDI score.

Watch out: HDI has three components — income (GNI per head), education (years of schooling) and health (life expectancy). Do not conflate them or claim HDI only measures income. The mark scheme credits each component as a separate valid way.