I think you'll need the offset option.
ln( Y ) = ln( K ) + b1 ln( X1 ) + b2 ln( X2 / X3 ) + 1 ln( 1 / X3 )
as in:
glm( log(Y) ~ log( X1 ) + I(log( X2 / X3 )),
offset=I(log( 1 / X3 )))
-tgs
On Tue, Apr 20, 2010 at 7:14 AM, rajiv guha wrote:
> I am trying to estimate a demand function:
>
open up the brackets (-1-b1) and you would get an equation in which you
would have to estimate only b1 and b2...
then you can proceed by the normal method..
On Tue, Apr 20, 2010 at 4:44 PM, rajiv guha wrote:
> I am trying to estimate a demand function:
> Y=K * X1^b1 * X2^b2 * X3 ^(-1-b1)
>
> in
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