“…For example, Shi and Wu (2017), Martín-de Castro, Delgado-Verde, Navas-López, and Cruz-González (2013), Wu (2012) and Love, Roper, and Bryson (2011) measure the relationship between the age of firms and their innovative output. Stock, Greis, and Fischer (2002), Kannebley, Porto, and Pazello (2005), Blind, Edler, Frietsch, and Schmoch (2006), Coronado, Acosta, and Fernández (2008), Banerjee and Cole (2010), Tomlinson (2010), Clausen, Korneliussen, and Madsen (2013) and Qiao, Ju, and Fung (2014) consider the relationship between the size of a firm and its innovative productivity. Kang and Park (2012), Griffiths and Webster (2010) and Cefis and Marsili (2006) consider the impact of R&D expenditure on innovation, and Berger and Ofek (1995), Seru (2014) consider whether industrial diversification is a determinant of innovation.…”