Stephen J.LurieMD, PhD, Senior EditorIndividualAuthorPhil B.FontanarosaMD, Executive Deputy EditorIndividualAuthor
In Reply: Dr Lott's econometric suggestions
are problematic. It is well known that arrest rates have a spurious negative
correlation with the crime rate, since the latter constitutes the denominator
of the former.1 Introducing an "independent"
variable that is codetermined with the dependent variable will generally bias
all coefficient estimates.
Ludwig J, Cook PJ. Impact of the Brady Act on Homicide and Suicide Rates—Reply. JAMA. 2000;284(21):2718-2721. doi:10.1001/jama.284.21.2717