For the first time in years, pay for the lowest-income Americans is rising faster than for other groups.
Weekly pay for full-time earners at the lowest 10th percentile of the wage scale rose at a faster rate last quarter, year-to-year, than for any other group measured by the U.S. Labor Department—including those at the top of the income scales who earn five times as much.
The shift for low-income workers—including restaurant…