About 1 in 4 U.S. jobs requires an occupational license, according to the National Conference of State Legislatures. Licensing requirements differ by state and can apply to everyone from barbers to lawyers. The general idea, of course, is to keep unqualified workers out. But technology, and specifically artificial intelligence, is making inroads. Rebecca Haw Allensworth, a law professor at Vanderbilt University, is also author of the new book “The Licensing Racket: How We Decide Who Is Allowed to Work, and Why It Goes Wrong.” She told Marketplace’s Stephanie Hughes that in some instances, AI is letting consumers bypass licensed workers altogether.