Nowaday, organisations are seeking to understand how one of the last truly competitive resource, their human resource, can be managed for competitive advantage (Allen and Wright,2006). As Wright and McMahan (2011) state, today and organisation's human resource have become more important than ever to their success. Consequently,a better understanding is needed of the role of HRM in creating better organisational performance. Although, human resource management practices have continued to be the focus of strategic HRM research (Combs et al., 2006), human capital has received little attention (Takeuchi et al.,2007), and human resource behaviours have received even less (Sun et al.,2007).