Before revision:  Simulations show that assigning unemployed to programmes that maximise individual gains as identified in our estimation can considerably improve effectiveness . Simplified rules, such as one giving priority to unemployed with low employability, mostly recent migrants, lead to about half of the gains obtained by more sophisticated rules .
After revision:  Simulations show that assigning unemployed to programmes that maximise individual gains as identified in our estimation can considerably improve effectiveness : up to 20 percent more (less) time spent in (un)employment within a 30 months window. A shallow policy tree delivers a simple rule that realizes about 70 percent of this gain .