Tipping Points: Referral Homophily and Job Segregation
Roberto M. Fernandez
Massachusetts Institute of Technology (MIT) - Sloan School of Management
June 21, 2010
MIT Sloan Research Paper No. 4783-10
How does referral recruitment contribute to job segregation? Current theory emphasizes the segregated nature of job-seekers’ information and contact networks. The job-seeker perspective characterizing most research on network effects in the labor market leaves little role for organizational influence. But referrals are necessarily initiated within a firm by referrers. This paper focuses on the neglected half of the referring dyad and seeks to explain the segregating effects of referring from the referrer’s perspective. Our main finding is that if a firm can get its under-represented group to refer more, referral recruitment can be made neutral to job segregation, or even integrative. Our analysis reveals a tipping point in referring dynamics – precisely how much more the under-represented group needs to refer to neutralize the segregating effects of referring. We build upon previous research to generate a formal model of referring dynamics as a regular Markov population process. We use this model to build theory regarding the segregating effects of referring, and the role of organizations in this process. In so doing, we show the prevailing wisdom fails to explain how referring contributes to job segregation. We reveal the conditions necessary for referring to segregate and identify policy levers for firms to mitigate this effect.
Number of Pages in PDF File: 51
Keywords: Job Segregation, Referral Homophily, Labor Marketworking papers series
Date posted: June 21, 2010
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