Hi all,
I have a question regarding a projection method. (Sorry that I cannot find more accurate words to describe the topic)
I have panel data of y, and x1, x2, x3, say firm- year panel.
I would to empirically estimate y as a function of x1, x2, x3 and their possible products (x1x2, x2x3, x1x3), with flexible powers for x.
i.e., a projection method,
then use AIC/BIC to determine which is the ideal polynomials approximation
I wonder if you can help on how to implement this, and how to do it efficiently in stata. Is there any packages ready for this?
Thanks a lot!
I have a question regarding a projection method. (Sorry that I cannot find more accurate words to describe the topic)
I have panel data of y, and x1, x2, x3, say firm- year panel.
I would to empirically estimate y as a function of x1, x2, x3 and their possible products (x1x2, x2x3, x1x3), with flexible powers for x.
i.e., a projection method,
then use AIC/BIC to determine which is the ideal polynomials approximation
I wonder if you can help on how to implement this, and how to do it efficiently in stata. Is there any packages ready for this?
Thanks a lot!
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