 It's not clear how long the Chinese economy can rely on overseas customers. In Shanghai, I'm Jennifer Pak for Marketplace. And I'm David Brancaccio. You're listening to the Marketplace Morning Report from APM American Public Media. I'm Meghna Chakrabarty. Join me weekdays at 1 for On Point on NPR News. The show unites distinct and provocative voices with passionate discussion of the stories that are at the center of what's important in the world today.