For the past 80 years, Gross Domestic Product (GDP) has been the standard measure of a given country’s progress and success. But while GDP is an important tool for measuring economic performance, it’s not necessarily a good measure of well-being. In this TED Talk, Michael Green argues for a new measure called the Social Progress Index, intended to measure what really matters for a country’s citizens. Do they have enough to eat? Are they safe? Can they read and write? Do they have a chance to pursue their dreams? Do they have rights? Watch his talk to find out how the U.S. and other countries scored!