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st: Problem with paneldata

From   Thomas Gericks <>
Subject   st: Problem with paneldata
Date   Wed, 16 Jun 2010 21:09:35 +0200 (CEST)


I am working with panel data.

Therefore i declared it as paneldate, saying:

xtset gvkey (company name) datadate(time)

Now, when i try to work with lagged values, i.e.

gen lag_saleq = L.saleq

It doesnt show me any errors but the varlist lag_saleq is always empty, instead of having the value of the last time period.

What do i do wrong? Can anyone help me?

Thanks a lot,

Thomas Gericks

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