I am using real values for variables such as GDP and Effective exchange rate for my OLS regression I was wondering if I should use the Producer Price index to to find the real value of net exports or should I just use the nominal value. I am confused about which index I should use in all essence and in need of help.

  • $\begingroup$ I'm not entirely sure this is something that a statistician, nor data scientist would be able to give you concrete off-the-shelf answers to, unless they have a specialist training in economics or econometrics. For this reason, I think it might be a good idea to specify your regression model? I.e. $y = \beta_0 + \beta_1 GDP + ....$ etc.? $\endgroup$
    – microhaus
    Mar 19 at 19:24

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