by Grant Martsolf (@GRMartsolf) Starting in the late 1970s, the U.S. economy underwent a sharp shift away from manufacturing, a sector that had long offered stable, well-paying jobs to men without college degrees—a group often identified as “working class.” As manufacturing declined, especially in regions like the Rust Belt that were hardest hit by deindustrialization, job growth concentrated in the service sector. In my hometown of Pittsburgh, for example, civic leaders responded to in...
