“…The theory of social exchange has been widely adopted in recent years by researchers in management sciences (Brimhall, Lizano & Barak, 2014, Singh and Selvarajan, 2013, Ertürk and Vurgun, 2015, George, 2015, Cheng & Waldenberger, 2013, Thurasamy et al, 2011, Taştan, 2014. Blau (1964), cited in Paillé et al (2015), states that social exchange is based on "favors that create diffuse future obligations, not precisely specified, and whose nature of the counterpart can not be negotiated. but must be left to the discretion of its author.…”