“…It is indicated that this diversity have a positive effect on the performance (Larson, 2007;Mitchell, Nicholas, & Boyle, 2009;Tyran & Gibson, 2008). Because of the fact that there are differences among employees from different nationalities in terms of worldview, behavior patterns, values, and norms, the majority of the employees of different nationalities refers to deep-level heterogeneity as cultural diversity (Hambrick, Davison, Snell, & Snow, 1998;Jackson et al, 1995). In line with the paradigm of diversity, it is stated that group members of different nationalities have a positive effect on group performance (Ely & Thomas, 2001;Hambrick et al, 1998;Maznevski, 1994;Oosterhof et al, 2009).…”