model with a sample of 202 US biotechnology firms between 1990 and 2009, we investigate the extent to which the mergers and … acquisitions with different partners contribute to the depth and breadth of the focal firm's knowledge base. Our analysis also … addresses potential endogeneity issues and shows that acquisitions of related firms mainly increase the depth of knowledge …

Motivated by recently surged domestic mergers and acquisitions (M&As) and using listed firms’ data in China, this study … investigates whether M&As between Chinese acquirer firms and domestic target firms enhance innovation for the acquirers after the M …&As. The main results are the following. First, the innovation-enhancing effects of domestic M&As are only observed in the most …