Results of research on whether changes in earnings can predict future stock returns are inconclusive. We add to this debate by using long-term data from 1871 to 2004 to examine the predictive power of changes in earnings in periods of intrinsic bubbles and in periods absent intrinsic bubbles. Our results show that accounting for bubbles is important in whether changes in earnings can predict future stock returns. In periods of no bubble, we find that changes in earnings Granger-cause future returns, whereas in periods of bubble, this Granger causality from changes in earnings to future returns cannot be found. We conclude that changes in earnings can predict future stock returns, but only in periods absent bubbles.

Private equity placement data allow us to determine whether sophisticated investors can uncover the true value of firms. This can be done by defining sophisticated investors as those who meet the stringent participation requirements of the private equity market. Our results show private equity issuing firms overstate their earnings in the quarter preceding private equity placement announcements and that sophisticated investors do not ask for a fair discount when purchasing the shares of the private issuing firms. We also find evidence showing that the reversal of the effects of pre-issue earnings management is a significant determinant of the long-term performance of private issues. Results further show that post-issue stock performance and operating performance of firms using “aggressive” earnings management significantly underperform those using more “conservative” earnings management.