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hello.. I am wondering if someone can help i ll be very thankfull I estimated this equation: dlog(cpi) c dlog(neer) dlog(epi) d(open) Using OLS which come originally from the low of one price after linearizing, which is: P = P" * E i estimated the equation for three countries indvidually and no...

how i can estimate non linear equation?
i have not menipulate my data yet, sohuld i do it by excel

this is the equation:

and it has to be estimated by the first difference except for the varibal (open)

〖 lnCPI〗_t=α+ β_(1 ) ln⁡(NEER) +β_(2 ) ln⁡(WWPI)+β_3 OPEN+ε_t


thanks