This index will help youth have a stronger voice, and policy, society, and business leaders collectively make smarter investments, develop more strategic policies, and encourage greater action that will improve outcomes for the world's young people. We release the index at a critical moment, when policymakers across the globe are assesing the 2015 Millenium Development goals and planning for a world where noone is left behind. Youth must be at the forefront of that global agenda. The index helps us make that case.