Pitfalls in testing with linear regression model by OLS
  This is a comment on Economic Letters DOI http://dx.doi.org/10.1016/j.econlet.2015.10.015. We show that due to some methodological aspects the main conclusions of the above mentioned paper should be a little bit altered. 
C. Herteliu, B.V. Ileanu, M. Ausloos, G. Rotundo
stat.AP physics.soc-ph