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Should the unit of measure of the variables be the same in an econometric equation?

For example if I estimate this equation:

Price of gold (per gram Turkish Lira) = constant + Turkish Lira/US Dolar exchange rate + Price of gold ( ons/dolar)

could it be correct?

thank you again.....

for 3732 data I had this output: D(V) = -0.03709782312*V(-1) and CoefficientStd. Error t-Statistic Prob. C(1) -0.037098 0.004418 -8.396117 0.0000 so, the coefficent is significant and the prices don't follow a random walk. But is it possible to get p via this equation= p-1 = -0,037 and p= 0,96291 if...

Thank you for your explanation it is very satisfactory...

or could we work with raw data if so would it suit to the theory of econometrics. For examp: I would like to estimate an Index model. Dependent variable was going to be Stock prices (for an exact corporation) and the ındependent variable was going to be oil prices. Should I deflate those variable or...

thank you for your help. I think I got it know. the process we are talking about testing, testing a random walk process. If the market is strong effective stock prices follow a random walk so It is not possible to predict expected price what Fama said in 1950......

I mean is it possible to form an exact model for stock's next price via ewievs??

anyone who knows this stuff plz help me.... thank you for your help... I have followed your instructions both first and second and with your second instructions I have estimated this equation for 82 data (which are a stock's prices) Dependent Variable: D(Y) Method: Least Squares Date: 09/23/08 Time...

anyone who knows this stuff plz help me....