Definition -firm’s expansion of its technology base into a wider range of technologies(Koren and Trenreyro) For firms, technological diversification has been defined ‘as the expansion of the corporation’s technological competence’ captured in terms of the‘ diversity, or the breadth(or width)of the corporation’s technology base’ (Granstrand and Oskarsson 1994, p. 355).Technological diversification thus reflects the range ‘of the firm’s technological competencies’ (Piscitello 2000, p. 296),The ‘diversity in the knowledge system’ (Quintana-Garc´ıa and Benavides-Velasco 2008, p. 492) The extent to which technology is spread across a range of different areas’ (Lai and Weng 2014, p. 81).