The scope and scale of occupational licensing in the United States continues to grow. Our study finds that stricter optician licensing laws and laws that have been in place for longer periods of time result in higher optician earnings. On the other hand, there is little evidence that licensing...

We analyze the effect that state licensing of radiologic technologists (RTs) has had upon RT wages with a unique dataset that allows us to control for place of work and job specialization. Using OLS and several measures of licensing, we find evidence that RTs working in states with licensing...