Blattman,Christopher et al

Cognitive behavioral therapy reduces crime and violence over ten years: Experimental evidence - The American Economic Review: Insights - 5(4), Dec, 2023: p.527-545

Several small, short-term, or nonexperimental studies show that cognitive behavioral–informed interventions reduce antisocial behaviors over one to two years, but persistence research is rare. We followed 999 high-risk men in Liberia ten years after randomization into eight weeks of low-cost, nonspecialist-led therapy; $200 cash; both; or neither. A decade later, antisocial behaviors (such as robbery and drug selling) fell 0.2 standard deviations from therapy alone—significantly greater than the one-year impacts. Meanwhile, men who received therapy plus cash were 0.25 standard deviations less anti-social—similar to one-year results. In both cases, impacts were concentrated in men exhibiting highest baseline risk.-Reproduced

https://www.aeaweb.org/articles?id=10.1257/aeri.20220427