Goyal (2011:68): Extensive work exists on the role of personal contacts in gaining employment. This is much more likely to be the case for low-versus high-paying jobs. [This literature is relevant for understanding recruitment to PMCs and security services.]
Goyal (2011): Relations are relevant in several ways: they allow the flow of information about job opportunities; they allow the flow of information about competency to perform jobs; and they facilitate trust.