Presentation of paper

Referral-based job search networks

Speaker

Christian Dustmann

ULC - London

Abstract

Christian Dustmann, Albrecht Glitz, and Uta Schoenberg

This paper develops a model and derives novel testable implications of referral-based job search networks in which employees provide employers with information about potential job market can- didates that they otherwise would not have. Using unique matched employer-employee data that cover the entire workforce in one large metropolitan labor market over a 20 year period, we find strong support for the predictions of our model. We first show that firms are more likely to hire minority workers from a particular group if the existing share of workers from that group employed in the firm is higher. We then provide evidence that workers earn higher wages, and are less likely to leave their firms, if they were hired by a firm with a larger share of minority workers from their own group and are therefore more likely to have obtained the job through a referral. The effects are particularly strong at the beginning of the employment relationship and decline with tenure in the firm. These findings support the hypothesis that, through referrals, job search networks help to reduce informational deficiencies in the labor market and lead to productivity gains for workers and firms.

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