Why do some people support the death penalty? Because research conducted by multiple teams of scholars at multiple universities have shown that the death penalty deters crime.
“Science does really draw a conclusion. It did. There is no question about it,” said Naci Mocan, an economics professor at the University of Colorado at Denver. “The conclusion is there is a deterrent effect.”
A 2003 study he co-authored, and a 2006 study that re-examined the data, found that each execution results in five fewer homicides, and commuting a death sentence means five more homicides. “The results are robust, they don’t really go away,” he said. “I oppose the death penalty. But my results show that the death penalty (deters) — what am I going to do, hide them?”
Statistical studies like his are among a dozen papers since 2001 that capital punishment has deterrent effects. They all explore the…
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