General Discussion
In reply to the discussion: Largest Gun Study Ever: More Guns, More Murder [View all]DanTex
(20,709 posts)At best, you can claim that it's difficult to determine what the exact effects are of specific gun control laws because there is no environment in which to perform controlled experiments. That's a far cry from "it doesn't work". The fact of the matter is across states, there is less gun violence where there is tighter gun control, and the same holds internationally.
We also know that guns used in crimes originate more frequently from states with weaker gun laws, indicating that gun laws are effective in making it more difficult for criminals to get them. We know that when Virginia passed it's "one gun a month law" fewer guns from Virginia showed up in crimes in places like New York. The closest I've seen to a "natural experiment" is a study in Hawaii which documented a drop in gun ownership and also homicide following a tightening of gun laws.
http://home.uchicago.edu/~ludwigj/papers/UCLF-HawaiianExperience-2005
The inability to perform experiments is common to all social sciences. No branch of public policy has hard-science quality evidence. The evidence for gun control is at least as compelling as it is in areas like healthcare or economic policy.