Want a six-figure salary? Try Walmart. Alyssa DeOliveira followed a well-worn path: go to college, get a degree, find a white-collar job. Her mother always told her she'd grow up to be a doctor ...

Those gains have helped close the gap between blue- and white-collar workers. WSJ explains what’s driving the higher wages, and whether they will stick around. Illustration: Paige Money News ...

While this is great news for many people, it’s a tale of two job markets. Frontline, blue-collar and service-sector jobs boomed, whereas white-collar professionals were left in the dust.