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Ok so I'll better work some more on the model to be clearer, and not be bothering you guys at each moment hahahah (sorry by the way).
But the last question, when I write the name of the variable instead of the value I get an error message that says "A is not defined", where can I define it? before the estimate equation? or at the "command's window"? (this happens when I write "A" insted of the value of 0,0128 in the equation).
thanks for your time, bye.

PS: what's the sequence's order when estimating an equation? "dependent variable independent variables c" ? is it necessary to always put the c?

You might find the opening chapter of EViews Illustrated, available free online at http://www.eviews.com, useful for some examples.

You might find the opening chapter of EViews Illustrated, available free online at http://www.eviews.com, useful for some examples.

ok thanks startz! I finnally achieve to estimate the parameters I needed!! I've created a POOL ESTIMATION:

Estimation Command:
=====================
LS(CX=F) CONSUMO 0.0064896*STOCK^(-0.493) COSTOCAPITAL+0.05 (EFECTIVIDAD-0.507/COSTOCAPITAL)*CONSUMO

Estimation Equations:
=====================
CONSUMO = C(5) + C(1) + C(2)*0.0064896*STOCK^(-0.493) + C(3)*(COSTOCAPITAL+0.05) + C(4)*(EFECTIVIDAD-0.507/COSTOCAPITAL)*CONSUMO
etc....

So thank you very much for the help! I' really appreciate the time you took to explain me when i was so lost...aahahah THANKS!