Heterogeneity in bubble experience across firms: an examination of the tech bubble

We study heterogeneity in bubble experience across individual stocks. Applying the date-stamping technique and using the tech bubble in late 1990s as our laboratory, we find that tech firms vary in whether, when and how long they experience bubbles. In multivariate regressions, we find that bubbles are more likely to happen and they on average last longer in more liquid stocks, in smaller firms, in fast-growing firms and in firms with higher ownership by institutional non-blockholders rather than blockholders.