Oblicz wartość rynkową pandy CRSP
CRSP['market_value'] = (CRSP['PRC']/CRSP['CFACPR'])*(CRSP['SHROUT']*CRSP['CFACSHR'])
The Frenchy
CRSP['market_value'] = (CRSP['PRC']/CRSP['CFACPR'])*(CRSP['SHROUT']*CRSP['CFACSHR'])