摘要:The objective of this Campbell systematic review was to estimate the effects of work programmes, including elements such as job search assistance, job search training, subsidised employment, job clubs, vocational training, etc. on welfare recipients' employment and economic self‐sufficiency. Randomised controlled impact evaluations of welfare‐to‐work programmes came almost exclusively from the United States. A total of 46 programmes with more than 412 thousand participants were included in this review. Welfare‐to‐work programmes in the USA have shown small, but consistent effects in moving welfare recipients into work, increasing earnings, and lowering welfare payments. The results are not clear for reducing the proportion of recipients receiving welfare. Little is known about the impacts of welfare‐to‐work programmes outside of the USA.