Misvaluation and Corporate Inventiveness
We test how market overvaluation affects corporate innovation. Estimated stock overvaluation is very strongly associated with measures of innovative inventiveness (novelty, originality, and scope), as well as R&D and innovative output (patent and citation counts). Misvaluation affects R&D more via a non-equity channel than via equity issuance. The sensitivity of innovative inventiveness to misvaluation is increasing with share turnover and overvaluation. The frequency of exceptionally high innovative inputs/outputs increases with overvaluation. This evidence suggests that market overvaluation may generate social value by increasing innovative output and by encouraging firms to engage in highly inventive innovation.
Published Versions
Ming Dong & David Hirshleifer & Siew Hong Teoh, 2021. "Misvaluation and Corporate Inventiveness," Journal of Financial and Quantitative Analysis, vol 56(8), pages 2605-2633. citation courtesy of