How does knowledge depth moderate the performance of internal and external knowledge sourcing strategies?

Management literature has consistently shown that knowledge is the most important source of competitive advantage for a firm. However, it is still not clear how knowledge can lead to competitive advantage, and how firms can find strategies to leverage their knowledge bases. This study considers the strategic implications of knowledge depth and three knowledge-sourcing strategies: R&D, strategic alliances and acquisitions. The main and interaction effects of these factors were tested in the context of the US technology firms. The results confirmed the strategic role of knowledge and external leveraging strategies. We also found that technology firms with weak knowledge depth should focus on internal R&D to accumulate knowledge in core technology areas, while those with strong knowledge depth should lower internal R&D intensity and shift their strategic resources to inter-firm alliances and acquisitions.