The move comes in the face of pressure from labor groups and allies calling for a “living wage” at retailers and fast-food companies across the country, as well as increased competition for labor with the unemployment rate at its lowest in more than six years. Target shares fell 1 percent in extended trade. The clearest sign of the changing labor landscape came last month when Wal-Mart, the largest private employer in the United States, said it would move to the $9 minimum in April with a further bump to $10 next year. A week after Wal-Mart’s announcement, T.J.