Second Round of Evaluation Round 2: The paper is much better and I only have some minor comments.
List of references is scant and limited. It is necessary to add more recent works on the subject with alternative ways of testing for Wagner’s Law. Suggestions include “Testing the Validity of Wagner’s Law in Bolivia: A Cointegration and Causality Analysis with Disaggregated Data” by A. Bojanic (2013); “Wagner’s Law and Italian Disaggregated Public Spending: Some Empirical Evidences” by C. Magazzino (2010); and “Panel Data, Cointegration, Causality and Wagner’s Law: Empirical Evidence from Chinese Provinces” by Narayan, P.K., et al. (2008).