The self-sufficiency Project (SSP) is a large-scale social experiment being conducted in Canada to evaluate the effects of an earnings supplement (or subsidy) for long-term welfare recipients who find a full-time job and leave income assistance. The supplement is available to single parents who...

David Card and Alan B. Krueger have already made national news with their pathbreaking research on the minimum wage. Here they present a powerful new challenge to the conventional view that higher minimum wages reduce jobs for low-wage workers. In a work that has important implications for...