“…The psychological contract prescribes the manner in which organizations reward employees for extra effort above their task performance (Makin, Cooper, & Cox, 1996). It establishes reciprocity rules showing how employees' extra effort is rewarded by the organization (Goodman & Svyantek, 1999). However, when organizations do not provide or reward employees with job resources, the long-term consequence is withdrawal from work, and reduced motivation and commitment (Bakker, Demerouti, De Boer et al, 2003a;Demerouti et al, 2001), and this takes away one of the primary mechanisms by which extra-role performance is supported by the organization (Goodman & Svyantek, 1999).…”