Distinguish between the Human Development Index (HDI) and the Inequality-adjusted Human Development Index (IHDI) with special reference to India. Why is the IHDI considered a better indicator of inclusive growth?

HDI and IHDI: Key Distinction

• HDI: Measures three dimensions — life expectancy, mean and expected years of schooling, and GNI per capita.

• IHDI: Uses the same three dimensions but discounts the HDI according to inequality in their distribution.

• HDI as an average: It can conceal disparities between States, regions, genders, rural and urban populations and social groups because a high-performing group can raise the national average.

• IHDI as an inequality-sensitive measure: It reveals the loss in human development caused by unequal access to health, education and income.

• Potential vs actual development: HDI represents the level of development before considering distributional inequality, whereas IHDI gives a more realistic picture of the human development actually experienced by the population.

India-Specific Picture

• India's HDI has improved substantially over the long term, but the national average can conceal regional and socio-economic disparities.

• The source material places India's recent HDI at approximately 0.685, ranking 130 out of 193 countries, in the medium human development category.

• India's IHDI falls to approximately 0.50, showing a substantial loss of human development because of inequality.

• The gap demonstrates that improvement in national averages does not automatically mean that health, education and income gains are distributed equally.

Why IHDI Is a Better Indicator of Inclusive Growth

• 1. Exposes the limitation of averages: HDI can rise even when development remains concentrated among better-off regions and groups. IHDI reveals whether improvements are reaching the poorer and marginalised sections.

• 2. Measures the cost of inequality: The difference between HDI and IHDI represents the loss in human development due to inequality, making inequality a measurable part of development assessment.

• 3. Captures India's socio-economic diversity: Differences across States, rural-urban areas, women, SCs, STs and tribal communities can remain hidden behind a single national HDI. IHDI provides a more distribution-sensitive assessment.

• 4. Helps target public policy: A large inequality-adjusted loss signals the need for greater attention to healthcare, school quality, income opportunities and access to basic services among disadvantaged groups.

• 5. Directly reflects inclusive growth: Inclusive growth is not merely about increasing aggregate income; it requires the benefits of development to reach different sections of society. Since IHDI penalises unequal distribution, it is a better test of whether growth is genuinely inclusive.

Limitation of HDI

HDI remains important because it provides a simple measure of long-term national progress and enables international comparison. However, it should be read alongside IHDI and measures such as the Multidimensional Poverty Index (MPI) to understand both average development and its distribution.