UNICEF officials explain why development approaches that emphasize equality are also the most cost-effective.
ROBERT JENKINS is Associate Director for Policy, Planning, and Programme Monitoring at the United Nations Children’s Fund. ANTHONY LAKE is the Executive Director of the United Nations Children’s Fund.

Students display their work at the Anganwadi centre in
Jamsaut village in Bihar. (Gates Foundation/flickr)
The world of international development has long been divided between idealists and pragmatists. The idealists give more weight to addressing the needs of the world's most destitute. The pragmatists are driven more by impact at the aggregate level, such as increasing GDP per capita. A growing body of evidence, however, suggests that the interests of these groups coincide. In many cases, it is most cost-effective to focus on the poorest groups.
In part, the convergence is due to the fact that, although many development indicators have improved at the national level -- including an overall reduction in poverty and child mortality and increasing school enrollment -- there are growing disparities within many countries. That is, as broad indicators improve, the gulf between the best and worst off is widening. A recent UNICEF study found that, in 26 countries, the mortality rate for children under five has declined by ten percent or more since 1990. But in 18 of those countries, the gap between the child mortality rates for the richest and the poorest quintiles of the population remained unchanged or grew. A specific example: between 1990 and 2008, measles immunization rates increased by ten percent among the wealthiest quintile of the population in West and Central Africa. They only increased by around three percent among the poorest quintile.
Read more at at Foreign Affairs' Special Report: Global Public Health.
Across the developing world, children in the poorest income quintile are still less than half as likely as those in the wealthiest quintile to have benefited from prenatal care; nearly three times as likely to be underweight; twice as likely to die before their fifth birthday; and, among girls, are three times as likely to get married before the age of 18. In addition, the disadvantaged have suffered the most from rising food and fuel prices, too often leading the poorest families to sell off vital economic assets and withdraw their children from school...
Related
Indian elites are cheering their country’s newfound status and influence. But two recent books reveal the ugly underbelly of India’s success story. A vast gulf has opened up between the rich and the poor, corruption suffuses every aspect of life, and the country’s political leaders lack the vision needed to turn this would-be world power into an actual one.
In their single-minded pursuit of economic growth, China's leaders have long overlooked public health -- which, by some measures, is now worse than under Mao. Despite recent reforms, China's citizens keep getting sicker, threatening the country's health-care system, the economy at large, and even the stability of the regime.
The key player in Algeria's crisis is not the Islamist rebels of the FIS but the army, the real power in a terrorized land. Increasingly, Algeria is run by a military caste that is above civil law. The generals will not let an international inquest try to uncover the truth about the recent spree of village massacres -- perhaps by Islamists, perhaps by a regime out to discredit them. Algeria's democrats sully themselves by failing to denounce human rights violations suffered by the Islamists. The army must get out of politics and let Algeria's parties, including the FIS, agree on a national pact that enshrines elections and civil liberties.
