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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