Pitfalls in testing with linear regression model by OLS HerteliuClaudiu IleanuBogdan Vasile AusloosMarcel RotundoGiulia 2018 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.