Hirshleifer, David; Hsu, Po-Hsuan; Li, Dongmei - In: Journal of Financial Economics 107 (2013) 3, pp. 632-654
We find that innovative efficiency (IE), patents or citations scaled by research and development expenditures, is a strong positive predictor of future returns after controlling for firm characteristics and risk. The IE-return relation is associated with the loading on a mispricing factor, and...