... and Business, Athens, Greece (2008), Leadership’s impact on employee engagement - Differences among entrepreneurs and professional CEOs, Leadership & Organization Development Journal Vol 30 No 4, ... TI U LU N MÔN PHƯƠNG PHÁP NGHIÊN C U KHOA H C ð TÀI: LEADERSHIP’S IMPACT ON EMPLOYEE ENGAGEMENT DIFFERENCES AMONG ENTREPRENEURS AND PROFESSIONAL CEOS LÃNH ð O TÁC ð NG ð N S THAM GIA C A NHÂN ... vigor, dedication and absorption” (Salanova and Schaufeli, 2008), successfully portrays the composite state of “commitment, effectiveness, motivation and satisfaction”, used in this study On the other...