“…Considering the fact that authors from the different countries cooperate with each other, in order to obtain unambiguous results, we applied the lead author's affiliation as a determinant for the articles being discussed. The majority of the studies included in our analysis have been conducted on the USA (Engel and del-Palacio 2009, DeFillippi 2015, Bagchi-Sen and Scully 2004, Sahaym et al 2012, Cunningham and Link 2015, Pett and Wolff 2009, Hegde and Shapira 2007, Snow et al 2011, Acworth 2008, Levina and Vaast 2008, Rodriguez et al 2013, Vasudeva 2009, Wu et al 2016, followed by Italy (Archibugi and Coco 2001, Archibugi and Coco 2005, Cerrato and Piva 2015, Checchinato et al 2017, Colombo et al 2016, Dell' era and Verganti 2009, Di Matteo et al 2015, Fabrizi et al 2016, Geisler and Turchetti 2015, Greco et al 2016, Johnson and Filippini 2010. Paradoxically, a lot of articles on a given subject were written by the authors from Italy, although most of them do not describe the situation in this country, but refer to others, such as the USA, Japan, China and the whole of Europe.…”