Hello,
I have downloaded two datasets from Wharton.
One CRSP/Compustat Merged - Fundamentals Annual dataset and one Beta Suite by WRDS (Beta) dataset. I would like to merge these two datasets again.
The CRSP/Compustat Merged - Fundamentals Annual has as company code LPERMNO (and gvkey), the Beta Suite dataset only PERMNO.
Now to my questions:
1) What is the difference between PERMNO and LPERMNO?
2) It seems to me that both are the same. So by renaming, can I merge both records based on these variables (and the date)?
Thanks a lot for your help!
With best regards
Sven
I have downloaded two datasets from Wharton.
One CRSP/Compustat Merged - Fundamentals Annual dataset and one Beta Suite by WRDS (Beta) dataset. I would like to merge these two datasets again.
The CRSP/Compustat Merged - Fundamentals Annual has as company code LPERMNO (and gvkey), the Beta Suite dataset only PERMNO.
Now to my questions:
1) What is the difference between PERMNO and LPERMNO?
2) It seems to me that both are the same. So by renaming, can I merge both records based on these variables (and the date)?
Thanks a lot for your help!
With best regards
Sven
