“…External knowledge sources include acquisitions (Chaudhuri & Tabrizi, 1999) and other forms of international relationships (Vermeulen & Barkema, 2001), such as alliances (Lane & Lubatkin, 1998). However, exposure to external sources of knowledge is necessary but not sufficient for transfer (Matusik, 2000); transfer also requires an understanding of the breadth and depth of this exposure, the new information's relatedness to prior knowledge, and the extent to which the new knowledge is different from current internal knowledge (Cockburn & Henderson, 1998;Lane & Lubatkin, 1998;Lofstrom, 2000;Matusik & Heeley, 2001;Van Wijk, Van den Bosch, & Volberda, 2001).…”