PT - JOURNAL ARTICLE AU - Kurt Lavetti AU - Carol Simon AU - William D. White TI - The Impacts of Restricting Mobility of Skilled Service Workers AID - 10.3368/jhr.55.3.0617-8840R5 DP - 2020 Jul 01 TA - Journal of Human Resources PG - 1025--1067 VI - 55 IP - 3 4099 - http://jhr.uwpress.org/content/55/3/1025.short 4100 - http://jhr.uwpress.org/content/55/3/1025.full SO - J Hum Resour2020 Jul 01; 55 AB - Why do skilled services firms use noncompete agreements (NCAs), which prohibit workers from leaving firms and competing against them? We conduct a survey of physicians linking NCA use to labor-market outcomes and firm performance and show that by deterring poaching of patients NCAs increase the return to job tenure, with larger effects in states with more enforceable NCA laws. These effects are consistent with NCAs enabling practices to allocate clients to new physicians through intrafirm referrals, reducing a form of investment holdup. We discuss an array of supporting suggestive evidence, but also find NCAs provide some benefits by reducing job turnover.