The stronger of two studies of Seattle's recent minimum-wage hikes shows clear gains in weekly earnings and no loss of jobs or hours. These University of California-Berkeley findings contrast with the negative outcomes recently presented to the Oregon Business Alliance by the University of Washington's Jacob Vigdor (Sunday, Sept. 25).

Research teams at both UC Berkeley and UW assessed the first two years of Seattle's six-year process to raise the minimum wage paid by all Seattle employers to $15 by 2021. Today, Seattle's minimum wage ranges from $15, at large companies that don't contribute to health care, to $11 at small firms where employees are assisted with health insurance payments or earn at least $2 an hour in tips.