Collaborations in innovation work between competitors have become a common practice in the information and communication technology sector (ICT), and substantial investments are made in such collaborations. Significant rationales for these collaborations include the high expectations placed on...

There is growing evidence that firms increasingly adopt open innovation practices. In this paper we investigate the impact of two such external knowledge acquisition strategies, "buy" and "cooperate", on firm's product innovation performance. Taking a direct (productivity) approach, we test for...