“…Commonly within the social sciences, intangibles are classified as knowledge resources (Nonaka and von Krogh, 2009; Miller and Choi, 2010; Tsai et al , 2013a); as intellectual capital (Roos et al , 1997; Marr et al , 2004; Schiuma et al , 2008; Celenza and Rossi, 2014); or as intangible assets (Hall, 1992; Lev, 2001; Lopes and Rodrigues, 2007; Ittner, 2008; Lopes, 2010; Tanfous, 2013). Dependent on accounting rules, several studies (Moeller, 2009; Zéghal and Maaloul, 2010; Kianto et al , 2013; Tsai et al , 2013b; Salchi et al , 2014; Shakina and Molodchik, 2014; Tudor et al , 2014; Vallejo-Alonso et al , 2015) have identified and measured the impact of intangibles on value-creation and performance in business. Traditionally, intellectual capital can be split into two main categories: human capital and structural capital (Roos et al , 1997).…”