Quote:
Originally Posted by Rococo
There is very little evidence that the death penalty, at least as used in the United States, has a significant deterrent effect.
Well it should be mandatorily execution the day of the appeal sentence.
Also if you use the death penalty only for ultra rare and weird crimes that require massive mental health problem, or a model of the world very distant from reality and not working very well, IE crimes not done by rational people, you won't deter.
Those crimes aren't committed usually by people assessing the benefit they gain from crime, the risk of being caught properly, and making tradeoff calculations.
Deterrence only work in those cases, when you change the payoff matrix of a rational or pseudo rational agent.
What you want to deter is evil behavior by people that are at least pseudo rational most of the times, if someone know he will die, rapidly, if caught robbing, and most of all he know thousands have been killed for that credibly, repeatedly, in the last couple of years, you will deter robbery
But the main deterrence is "horrible people objectively incompatible with society aren't around anymore".
Keep in mind those people will commit crimes inside jails as well often against people you could have thought could have been recovered somehow, so by not killing them you are exposing other, lesser criminals to violence as well