I have heard time and again that increasing the length of prison sentences produces little or no improvements in crime rates. It is said that increasing the probability of arrest after a crime has much better results.

Is there evidence for this (especially in developing countries)?

  • I had trouble finding an example claim which didn't also provide evidence to support it. – Oddthinking Feb 8 '14 at 9:41
  • Reduce crime rates inside or outside prison? – user1873 Feb 10 '14 at 6:25
  • rates outside prison. – josinalvo Feb 12 '14 at 20:58
  • If someone is in prison, that person cannot commit a crime. Seems like it would have to help, unless it is like musical chairs (one criminal is caught, someone else steps in to their place). – user29285 Oct 24 '15 at 19:38

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