![Marketplace show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/804/small/apm-marketplace.jpg)
Summary: <p>President Trump told an audience at the World Economic Forum in Davos today that the U.S. was in a “blue-collar boom.” We’re going to take some time to assess that claim and the state of blue-collar work in general. Plus: AI goes to the movies, a new spate of retail closures and why China is leading the world in solar, wind and … coal.</p>