University of Cologne
Department of Economics
Institutional Affiliation: University of Cologne
NBER Working Papers and Publications
|June 2019||What Do Employee Referral Programs Do?|
with Guido Friebel, Mitchell Hoffman, Nick Zubanov: w25920
Employee referral programs (ERPs) are randomly introduced in a grocery chain. Larger referral bonuses increase referrals and decrease referral quality, though the increase in referrals from having an ERP is modest. However, the overall effect of having an ERP is substantial, reducing attrition by roughly 15% and decreasing firm labor costs by up to almost 3%. This occurs, partly, because referrals stay longer than nonreferrals, but, mainly, because all workers stay longer in treated than controls stores, even among stores where no referrals are made. The most-supported mechanism for these indirect effects is that workers value being involved in hiring.