Joseph sends us:
> ...
> A look beyond the handgun Ban
> By Murray Whyte
> Reporter
> The Toronto Star
> TheStar.com
> April 27, 2008
> http://www.thestar.com/News/World/article/418838
>
>
> CHICAGO ...
> In the two police districts where the program was applied, homicide
> rates were cut by almost half - numbers, Williams says, the districts
> have been able to maintain or better since. From the initial two, the
> model is now being applied in six of the city's 25 districts. Results
> are encouraging: The events of the past week notwithstanding, gun
> violence in Chicago has been declining steadily over the past 10
> years.
This steady decline has been during the time of the handgun ban.
Will this steady decline be attributed to the handgun ban and be used
as evidence of its effectiveness?
It is really hard in the social sciences to track down causation, and
this article gives an example why it is hard ("confounding".)
--henry schaffer
> ...
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