“…joint ventures, in-licensing, out-licensing and cross-licensing (Gambardella and Panico, 2014;Lombardi, 2019), Abulrub and Lee's (2012) study shows that firms use only a few types of the 13 identified modes of open innovation, including joint research development, contract R&D, customer involvement and external networking. In implementing open innovation modes, firms change their activities and processes by transforming innovation management models and business models (Zhu et al, 2019;Garzella et al, 2020;Saebi and Foss, 2015;Abdulkader et al, 2020) and sharing knowledge with producers, providers, users, research centres, universities and other network actors (Lombardi et al, 2016;Cassiman and Valentini, 2016;West and Bogers, 2013;Secundo et al, 2019). The involvement of several external resources has become a focal issue in recognizing firm boundary resources and in governing firms through strategic boundary management (Giannopoulou et al, 2010;West et al, 2014;Fiorentino, 2016).…”