The Human Development Index (HDI) is a comparative measure of life expectancy, literacy, education and standards of living for countries worldwide. It is a standard means of measuring well-being, especially child welfare. It is used to distinguish whether the country is a developed, a developing or an underdeveloped country, and also to measure the impact of economic policies on quality of life. The index was developed in 1990 by Pakistani economist Mahbub ul Haq and Indian economist Amartya Sen.
Old method (before 2010 Report)
The HDI combined three dimensions last used in its 2009 Report: * Life expectancy at birth, as an index of population health and longevity * Knowledge and education, as measured by the adult literacy rate (with two-thirds weighting) and the combined primary, secondary, and tertiary gross enrollment ratio (with one-third weighting). * Standard of living, as indicated by the natural logarithm of gross domestic product per capita at purchasing power parity.
New method (2010 Report onwards)
Published on 4 November 2010 (and updated on 10 June 2011), starting with the 2010 Human Development Report the HDI combines three dimensions: * A long and healthy life: Life expectancy at birth * Education index: Mean years of schooling and Expected years of schooling * A decent standard of living: GNI per capita (PPP US$)
Infant mortality
Infant mortality is the death of a child less than one year of age. Childhood mortality is the death of a child before its fifth birthday. National statistics tend to group these two mortality rates together. Ninety-nine percent of these deaths occur in developing nations. Infant mortality takes away society’s potential physical, social, and human capital.
Generally the most common cause worldwide has been dehydration from diarrhea, a preventable disease; however, a variety of programs combating this problem have decreased the rate of children dying from