Pooled OLS including Year and Firm Fixed Effects

[Marc Pelow]

Hi,

I am trying to run a pooled OLS on my unbalanced panel data including firm and time (quarter) fixed effects in the following form:

reg DV IV Controls  i.Quarter i.FirmID, vce (cluster FirmID)

I receive the error: FirmID: factor variables may not contain noninteger values.
The code works fine if I go with c.FirmID but I was wondering if this will also include firm fixed effects in my model?

Cheers

[Maxence Morlet]

egen firm_id_numeric=group(FirmID)

[Maxence Morlet]

Why not use the user written command reghdfe?

 
 reghdfe DV IV Controls  , vce (cluster firm_id_numeric) abs(i.Quarter i.firm_id_numeric)

[Andrew Musau]

I receive the error: FirmID: factor variables may not contain noninteger values.

Why do you have noninteger values for FirmID in the first place? This should be your starting point.

tab FirmID

[Marc Pelow]

Thank you all for the helpful replies!