Summary: We get skads of information from the federal census every ten years: how many people live in the United States, where they live, how much money they make, and much more. But that's every ten years, and it is a gigantic undertaking. It is augmented in non-census years by the less comprehensive, but still expensive, American Community Survey (ACS). Couldn't we use other, available information to come up with more frequent and cheaper data on people? The answer appears to be yes , especially if we
