@article{ref1,
title="Impact of the Brady act on homicide and suicide rates (Letter)",
journal="JAMA journal of the American Medical Association",
year="2000",
author="Cook, Philip J. and Ludwig, J.",
volume="284",
number="21",
pages="2718-2721",
abstract="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 co-determined with the dependent variable will generally bias all coefficient estimates. DOI 10.1001/jama.284.21.2717",
language="en",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}