In an article titled “The Impact of Right-to-Carry Laws and the NRC Report: Lessons for the Empirical Evaluation of Law and Policy” published in the American Law and Economics Review in 2011, Abhay Aneja, John Donohue III, and Alexandria Zhang report on their inability to replicate...

Although control variables are the reason for multiple regression, surprising little attention is given to the process of locating and selecting the controls. If important controls are omitted, estimates can be biased and inconsistent whereas using too many controls can reduce efficiency and...

Fixed effects panel data models are not immune to problems caused by nonstationarity. Using Monte Carlo experiments, we find that OLS standard errors invariably fail to generate significance tests with correct size when either or both of the regressors are I(1). Clustered standard errors...

In an "American Law and Economics Review" article published during 2011, Abhay Aneja, John Donohue III, and Alexandria Zhang (hereafter ADZ) examined Chapter 6 of Firearms and Violence: A Critical Review, a 2005 report from the National Research Council (hereafter NRC). The chapter examined by...