Hi Everyone,

I am running an ARDL - ECM on time series data containing continuous variables. 3 of my variables are ratios (fdi, emissions and trade openness). The log likelihood when I log transform the ratios is positive. When I run the regressions without transforming the variables into logs its negative

I have read that ratios do not have to be converted to log form. In this regard, does the negative log likelihood make my results invalid or say that the estimations are not of great quality?

Should I run regressions in log form or just maintain ratios

Thanks