
Health-care licensure rules vary in ways that matter for competition and mobility.
This chart focuses on one large licensed occupation, showing how licensing policies vary for nurse practitioners across the states. Though public discussion of the institution often focuses on occupations that have been more recently licensed (e.g., interior designers or tour guides), the economic impacts of licensure are likely to be especially important in the economically large health-care sector, which accounts for more than one-quarter of all licensed workers.