How many times have you heard “you can be what you want to be if only you work for it”? The American dream has brought millions to our shores, legally or surreptitiously, in search of upward economic mobility. And, over the decades, millions of children of immigrants or of working-class Americans have prospered and advanced in our competitive economy. But how easy is it for the children of poor parents to become prosperous? Recent evidence shows that there is much less mobility in the United States than most people assume. Download the report.