Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
“Legalization and regulation” is a common approach to sex work regulation that eliminates some criminal penalties if sex workers obtain government health certification. In theory, by allowing sex workers to credibly disclose their health status, certification should enable higher prices. Yet certification rates in developing countries are typically low. I explore barriers to certification in Dakar, Senegal. I randomly offered uncertified sex workers information and an incentive covering the monetary cost of certification. This incentive only marginally increased certification. Individual- and transaction-level analysis show no evidence for a certification price premium and reveal that internalized stigma deters certification.