The Self-Sufficiency Project (SSP) was a social experiment conducted in two Canadian provinces during the 1990s that tested a generous financial incentive program for welfare recipients. A little-known subsidiary experiment, called SSP Plus, had a three-way design that tested the incremental...

This study uses meta-analysis to synthesize findings from 31 evaluations of 15 voluntary government-funded training programs for the disadvantaged that operated between 1964 and 1998. On average, the earnings effects of the evaluated programs seem to have been largest for women, quite modest for...