"A Brookings Institution Press and the Center for the New Economy publication As a territory of the United States, Puerto Rico enjoys the benefits of key U.S. legal, monetary, security, and tariff systems, and its residents are U.S. citizens. In the decades following World War II, Puerto Rico emerged as one of the world's fastest-growing economies. From 1950 to 1970 per capita income nearly doubled as a percentage of the U.S. average, making...