Characteristics of Low-, Middle- and High-Income Countries

What this note covers

1. How countries are classified by income, and why it matters
2. Life expectancy and under-5 mortality across the income groups
3. Safe water, sanitation and the disease burden
4. Education and poverty
5. The Human Development Index (HDI) as a composite comparison
6. Explaining the relationship between income and human development

6 sections · 15 key terms & formulas · 7 common mistakes