"In 1776 the United States government started out on a shoestring and quickly went bankrupt fighting its War of Independence against Britain. At the war's end, the national government owed tremendous sums to foreign creditors and its own citizens. But lacking the power to tax, it had no means to...

Previous study by Card and Lewis (2005) has found (puzzling) that inflows of Mexican immigrants into new metropolitan areas have had no effect on the relative wages of very low-skill (high school dropouts). Rather, Mexican workers do affect relative wages for high school graduates. Whereas Card...