Firm Size¶
function
frds.measures.corporate.firm_size(data)Firm size
The natural logarithm of total assets.
\text{Size}_{i,t} = \ln \left( AT_{i,t} \right)
where AT is from Compustat Fundamentals Annual WRDS.COMP.FUNDA.
If data is a Fundamentals Quarterly dataset:
\text{Size}_{i,t} = \ln \left( ATQ_{i,t} \right)
Note
If AT or ATQ is missing or negative, \text{Size} is set to missing (np.nan).
Parameters
data(Union[Funda, Fundq]) — Input dataset
Returns (Union[pd.Series, None])
Firm size
Last update: June 3, 2021