Human Development Index

Human Development Index
HSingh1996 · CC BY-SA 4.0 · source
Name	Human Development Index
Abbreviation	HDI
Publisher	United Nations Development Programme
Country	Global
Website	hdr.undp.org

Human Development Index. The Human Development Index is a statistical composite index published by the United Nations Development Programme to rank countries based on their level of human development. It was created by Mahbub ul Haq and Amartya Sen to shift the focus of development economics from national income accounting to people-centered policies. The index assesses long-term progress in three fundamental dimensions: a long and healthy life, access to knowledge, and a decent standard of living.

Definition and components

The index is defined by its three core dimensions, each represented by specific indicators derived from global data sources. The health dimension is measured by life expectancy at birth, reflecting the ability to live a long and healthy life. The education dimension is assessed using two metrics: mean years of schooling for adults and expected years of schooling for children entering school, gauging access to knowledge. The standard of living dimension is evaluated through Gross National Income per capita, adjusted for purchasing power parity, to approximate command over resources for a decent life. Data for these indicators are compiled from organizations like the World Bank, UNESCO, and national statistical offices.

Calculation methodology

The calculation involves a multi-step process of normalization, aggregation, and geometric averaging to create a score between 0 and 1. First, dimension indices are created by normalizing each of the four component indicators against established minimum and maximum goalposts, such as those set in the Human Development Report. These normalized values for health, education, and income are then aggregated using the geometric mean, which reduces substitutability between dimensions and emphasizes balanced development. This methodology, refined over editions of the report, replaced an older arithmetic mean approach to better account for disparities, as analyzed by researchers like Sudhir Anand and Paul Segal.

Trends and global rankings

Global trends show significant improvement since the index's launch in the 1990 Human Development Report, though progress is uneven across regions like Sub-Saharan Africa and South Asia. Countries such as Norway, Switzerland, and Ireland consistently rank at the top, while nations including Niger, Central African Republic, and Chad often occupy the lowest tiers. The annual report highlights success stories like the Republic of Korea and Singapore, while also noting stagnation or decline in countries experiencing conflict, such as Syria or Yemen. The UNDP classifies nations into four tiers: very high, high, medium, and low human development, with groups like the G7 and OECD members predominantly in the highest category.

Criticisms and limitations

Critics, including economists like Martha Nussbaum and Branko Milanović, argue the index fails to capture internal inequalities, such as disparities between genders or ethnic groups, which are measured separately by the Inequality-adjusted Human Development Index. Other limitations include its omission of ecological sustainability, political freedoms, and human security, factors addressed by the Sustainable Development Goals. The reliance on Gross National Income is also contested for not reflecting wealth distribution, informal economies, or subjective well-being, topics explored by the World Happiness Report and the OECD Better Life Index.

Related indices and alternatives

Several complementary indices have been developed by the United Nations and other institutions to address the original index's gaps. The Gender Development Index and the Gender Inequality Index measure disparities between men and women. The Multidimensional Poverty Index, developed by the Oxford Poverty and Human Development Initiative, assesses acute deprivation in health, education, and living standards. Other notable alternatives include the Social Progress Index, the Legatum Prosperity Index, and the Happy Planet Index, which incorporate factors like environmental impact and personal freedom. These tools, alongside the original index, provide a broader toolkit for policymakers at forums like the World Economic Forum.

Category:Human Development Index Category:Development indicators Category:United Nations Development Programme