We examine how research and development (R&D) incoming spillovers affect long-run firm performance following firms’ R&D increases. We use a stochastic frontier production method to capture R&D incoming spillover effects. Firms reaping more benefits from R&D investment made by other firms experience more improvement in profitability and more favorable long-run stock performance in the post-R&D-increase period. Firms with higher levels of R&D incoming spillovers recruit more key employees from other firms, suggesting that obtaining know-how through hiring is an important source of incoming spillovers. The evidence also shows that firms experiencing more R&D outgoing spillover effects tend to underinvest in R&D.

We examine the motives behind the share repurchase decisions of initial public offering (IPO) firms by studying the stock and operating performance after the IPO date. We find that IPO firms that announce repurchases within 3years of IPO dates exhibit poorer long-run abnormal operating performance than other IPO firms. These IPO firms also experience poorer stock return performance and downward analyst forecast revisions. Moreover, these firms show intensive insider selling transactions after the IPO date. These results for IPO announcing repurchase firms are consistent with the misleading hypothesis, which suggests that these IPO firms mislead investors by announcing repurchases as false signals.