This article is an exercise in economic methodology. It replicates two published models of the effect of military expenditure on the United States economy but, in order to study variations in the relevant estimated parameters, applies two different military expenditure data sets to the models...

In addition to federal firearms legislation applicable to all firearms manufacturers operating in the United States, each of the 50 U.S. states has its own state, and sometimes additional municipal, firearms laws. Conceivably, the relative strictness or laxity of these laws influences location...