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From |
Kit Baum <baum@bc.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: re: system estimation with dynamic panel |

Date |
Tue, 5 Aug 2008 20:02:47 -0400 |

< >

Hewan said

I used the example from Nicola so as to not introduce a whole different

example but to re-ask Nicola's question. In my particular case, my

equations didn't have a dynamic nature altogether, but they did have

endognous vars on the right hand sides (e.g. one equations dependent var

was the other's regressor and vice versa). I had, at the time, wanted to

use a "panel version" of reg3, i.e. use 3SLS to estimate a simultaneous

equation system, only that each of three equations wasn't a cross- section

(i.e. along the lines of y_i = a + b*x_i + e_i; consider the x_it a vector

of regressors) but rather panel (ie. y_it = a + b*x_it + e_it).

Is it correct then that there is no panel version of reg3, and one would

have to use a more "manual" approach in imposing the desired restrictions

on the parameter and error matrices?

(1) There is to my knowledge no systems estimator that has panel- specific features.

(2) What are the 'desired restrictions on the parameter and error matrices'? Do you have cross-equation restrictions or restrictions on the VCE in mind?

If not, I see no reason why equation-by-equation -xtivreg2- would not yield the desired estimates, as it handles limited-information estimation for a panel with endogenous regressors.

Kit Baum, Boston College Economics and DIW Berlin

http://ideas.repec.org/e/pba1.html

An Introduction to Modern Econometrics Using Stata:

http://www.stata-press.com/books/imeus.html

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