“…TTO and incubators (Lockett and Wright, 2005;O´Shea et al, 2005;Powers and McDougall, 2005); (4) the nature and type of technology, namely their pervasiveness, novelty and intellectual property protection (Conceição et al, 2012;Gilsing et al, 2010;Shane, 2001);and (5) the external characteristics, i.e. the regional infrastructures that impact on spin-off activity, such as venture capital availability, knowledge infrastructures and industry structure (Audretsch et al, 2005;Stam, 2010;Woodward et al, 2006).…”