The world of welfare has changed radically. As the poor trade welfare checks for low-wage jobs, their low earnings qualify them for a hefty check come tax time—a combination of the earned income tax credit and other refunds. For many working parents this one check is like hitting the lottery, offering several months’ wages as well as the hope of investing in a better future. Drawing on interviews with 115 families, the authors look at how parents plan to use this annual cash windfall to bu...