This document describes the problem of GBV faced by adolescent girls in emergencies and advocates for economic strengthening (ES) as a means to prevent it. It presents impact evidence from development context interventions, and insights from a review of girls’ ES programs in humanitarian contexts. It aims to inform the design, monitoring and evaluation of GBV prevention programs in emergencies that take into account the full range of assets girls need to realize their rights to safety, dignity and empowerment.