“…Bass (1999) defined transformational leadership (TL) with four characteristics including (1) idealized influence: ability to provide a vision and perception of mission, instilling pride, gaining respect and trust); (2) intellectual stimulation: ability to promote intelligence, rationality and attentive problem solving); (3) inspirational motivation: interested in communicating high expectations, using symbols to focus efforts, expressing important purposes in simple ways); and (4) individualized consideration: interested in personal attention, treating each employee individually, coaching and advising. The theory of TL has attracted much observation from scholars and emerged as one of the most powerful leadership theories (Le & Lei, 2017;Le & Lei., 2018a,b,c;Van et al, 2018;Hui et al, 2018;Le et al, 2018a,b;Phong et al, 2018;Lei et al, 2019a,b,c,d;Sengphet et al, 2019;Le & Tran, 2019;Ha et al, 2019). Consequently, investigating the relationship between TL and innovation capability of Vietnamese firms will enrich the understanding and knowledge of new leadership style and innovation management in Vietnamese context.…”