The research of the seasonal price analyses for the anti-damping practices by USA: An alternative method to Cohens D test for a Turkish company subject to antidumping investigation

This study shows that the claim by DOC to examine the different paths of the rebar prices is possible if time series regressions are applied. It is suggested that time series should be used to detect price differentials other than cohens d test analysis. At this point, this study shows that best approach for regression models could be recognized in the use of "dynamic models" in time series. Moreover, autocorrelation and heteroscedasticity problems in the regression models are resolved with the help of dynamic models. Therefore, the problems in the regression models with dummy variables are removed in the dynamic regressions. Finally, the dynamic models could be used as a reference study to determine seasonal price differences in the rebar sales.