“…Then, this question has risen: What kind of pressure is that? OCB is investigated from the positive side such as its positive image, its constructive implications, its contribution to individuals and organizations at multiple levels, and its general reinforcement of performance in the workplace till today but in recent years, the assumptions behind the concept are started to question and there are growing studies (Bolino, Klotz, Turnley & Harvey, 2013;Bolino, Turnley, Gilstrap & Suazo, 2010;Bolino, Turnley & Niehoff, 2004;Gadot, 2006;Salamon & Deutsch, 2006;Zhao, Peng, Han, Sheard & Hudson, 2013;Zhao, Peng & Chen, 2014) which have examined OCB from a different perspective focuses on internal or external pressures on employees for exhibiting those behaviors. Gadot (2006) has proposed that OCB can arise from other motives, some of them less voluntary or less self-initiated.…”