Seattle's Painful Lesson on the Road to a $15 Minimum Wage

``This morning's data gives ammunition to the mayor's opposition. The University of Washington released its second study, this one covering the increase from $11 an hour to $13. And this study found huge effects: For every 1 percent increase in their hourly wage, low-wage workers saw a 3 percent reduction in the number of hours worked. As a result, they lost about $125 in earnings a month, clawing back the entire gain from the earlier hike and more.''