Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re:st: Lagged independent variables & panel data


From   "sistoand80" <sistoand80@libero.it>
To   "statalist" <statalist@hsphsun2.harvard.edu>
Subject   Re:st: Lagged independent variables & panel data
Date   Mon, 17 May 2004 15:50:53 +0200

Dear dr.Cordula,
if the problem is that the lagged explanatory variable is endogenous you can use the command "ivreg2" an extension of traditional ivreg that allows for GMM estimation and other possible estimation methods for dynamic panel data. 

If there's not an endogeneity problem I know that "xtreg" command don't allow for time series operator. You have to proceed as follow

First step: generate lagged explanatory variable:
for example: generate x(t-1) ---"gen lagx(t) = l.x(t)"

The time series operator are
l. = lagged level
f. = led level
d.= first-difference
ld. = lagged level in first-difference
ecc.

than perform the traditional regression

xtreg x(t) lagx(t) ecc.

Best regards
Andrea Sisto


*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index