In this study, we examine the effect of investor sentiment on the stock market reaction to earnings news (i.e., the earnings response coefficient or ERC) for loss firms. We find that the ERC for loss firms' earnings increases is less positive as sentiment increases, contrary to the findings in...

Regulators have alleged that digital giants (Alphabet, Facebook, Microsoft, Apple, and Amazon) have misused their market power to earn abnormal profits. Research that systematically documents whether technology firms earn abnormal profits is limited, arguably because (i) U.S. GAAP based...