This year, 2018, marks the 60^th anniversary of a landmark publication by a pair of academic social scientists who first recognized the close relationship between population age structure (the distribution of a country’s population, by age) and development. In Population Growth and Development in Low Income Countries (Princeton U. Press, 1958), demographer Ansley Coale (1917-2002) and economist Edgar M. Hoover (1907-1992) theorized that eventual declines in fertility would transform developing-country age structures. Coale and Hoover demonstrated that these newly transformed age structures would exhibit larger shares of citizens in the working ages, and smaller shares of dependent children and seniors (Fig. 1). This transition, they argued, would someday help lift countries with youthful populations in Asia, Latin America, and Africa out of the low-income bracket.

“Adolescence is a time to support young peoples’ access to information, to education, to skills and to services that can result in a healthy and safe transition into adulthood,” said Sarah Barnes, Project Director of the Maternal Health Initiative, at a recent Wilson Center event on engaging youth and protecting their sexual and reproductive health and rights. “It’s time to make adolescents a priority,” said Barnes.

The Kurdish people’s century-long quest for self-determination reveals a key aspect of ethnic separatist conflicts. Ideas of nationhood can endure for generations, unifying people across borders and often making separatist conflicts hard to resolve. But how much harder is it to resolve separatist conflicts than other violent, non-territorial intra-state wars (such as political revolutions)? In practical terms, how much longer, on average, can policymakers expect separatist conflicts to persist and reoccur than the typical political revolution? These are tough questions. Surprisingly, demography helps us find the answers.

“There are more young people in the world today than in any other time in the history of the world,” said Beza Tesfaye, Senior Researcher at Mercy Corps, at a recent event at the U.S. Institute of Peace on Mercy Corps’ efforts to engage youth in Somalia and Afghanistan in order to promote stability and prevent violence. “As we know, marginalized youths are the ones often to be recruited into violent movements. Not only do we have to focus on conflict, but we also have to put youth at the center of development programs to address these issues.”

“There is a close relationship between fertility rates and health on one hand, and economic growth on the other,” said Peter McPherson, President of the Association of Public Land-Grant Universities and former USAID Administrator, at the final event in a three-part series on the role of population and family planning in supporting economic growth, health, and education.

“Over 130 million girls around the world are not in school through no fault of their own,” said Her Excellency Joyce Banda, former president of the Republic of Malawi, at the launch of her new book, From Day One: Why Supporting Girls Aged O to 10 Is Critical to Change Africa’s Path, at the Center for Global Development.