Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: rollreg - r134

From   "Fabian Schönenberger" <>
Subject   st: rollreg - r134
Date   Wed, 02 May 2012 21:56:54 +0200

Dear all
I have a problem running rollreg regression for my panel data. The sample is very large, about 2'400'000 observations. First, I tsset the date:

. tsset cusip datemonthly
       panel variable:  cusip (unbalanced)
        time variable:  datemonthly, 1969m2 to 2012m2, but with gaps
                delta:  1 month

I want to conduct rolling regressions for my panel date. I tried:

rollreg stockpremium marketpremium, move(36) stub(capm)

The output is:
Observations with preceding time gapstoo many values

I did some internet research and found out that some years ago the same problem was discussed among Statalist. However, I did not find a solution for the problem. I am not sure if the problem are too many values, or the gaps. I dropped all missing observations (monthly stock prices). However, it is possible that for some cusips the sequence of months has gaps. The reason why I want to conduct rollreg is that I am interested in how the explanatory power of marketpremium changes over time. 

Any advice?

Many thanks, Fabian
NEU: FreePhone 3-fach-Flat mit kostenlosem Smartphone!                                  
Jetzt informieren:
*   For searches and help try:

© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index