Human Development
Human development is about enlarging people's choices, not merely raising output. The BSEB syllabus links it to Amartya Sen and Mahbub ul Haq, the HDI and related indices.
Core ideas
- Growth is a quantitative rise in output; development is qualitative improvement in well-being.
- HDI (1990) combines health (life expectancy at birth), education (mean years and expected years of schooling) and standard of living (GNI per capita, PPP).
- The three dimension indices are combined by geometric mean, so a weak dimension pulls the HDI down.
- Related measures include the Gender Development Index, Gender Empowerment Measure, Gender Inequality Index and Multidimensional Poverty Index.
Worked example
Suppose health index = 0.80, education index = 0.60 and income index = 0.70. Product = 0.80 × 0.60 × 0.70 = 0.336; cube root ≈ 0.695. A country with the same income but stronger education would score higher, showing that HDI is not an income ranking.
Traps
Do not equate HDI with GDP per capita; GNI is converted by PPP, not market exchange rates. Do not call a rise in GDP development without welfare evidence. Remember the geometric mean, not a simple average: (0.80+0.60+0.70)/3 = 0.70 would overstate the score.