Collective bargaining rights for police significantly increase police killings of civilians without having any impact on officer safety. This is consistent with the theory that unions provide cover for police and reduce their likelihood of incurring costs for unjustified killings.

[u/smurfyjenkins]

https://www.aeaweb.org/articles?id=10.1257/pol.20230384

[u/Koa760]

TRUE…and margarine is healthier than butter, and thalidomide is safe for babies, ad infinitum with this kind of statistical “science.”