Machine generated contents note: pt. 1 The Youth Bulge Emerges -- The Cohort as a Concept in the Study of Social Change / Norman B. Ryder -- Youth as a Force in the Modern World / Herbert Moller -- Youth Cohorts and Political Unrest in South Korea / Forrest R. Pitts -- pt. 2 Does the Youth Bulge Contribute to Conflict and Violence? -- The Evolution of Studies on the Youth Bulge, Violence, and Conflict / Debbie L. Fugate -- Male Age Composition and Severity of Conflicts / Neil I. Wiener -- The Young and the Restless: Population Age Structure and Civil War / Sarah Staveteig -- pt. 3 Is the Youth Bulge an Economic Burden or a Demographic Dividend? -- Demographic Transitions and the "Demographic Dividend" / Jaypee Sevilla -- What Is the Demographic Dividend? / Andrew Mason -- Why Do Some Countries Have a Demographic Dividend and Others Do Not? / John R. Weeks -- pt. 4 How Does the Youth Bulge Operate as an Agent of Political Change? -- The Demographic Fit Between the United States and Latin America / John R. Weeks -- Half a Chance: Youth Bulges and Transitions to Liberal Democracy / Richard P. Cincotta.