American workers who changed jobs in March saw their salaries shoot up‚ a sign of how much companies are putting in extra effort to attract employees at a time when the labor market is offering millions of jobs for whoever is looking for a job. Last month‚ employees who moved into new roles saw their earnings jump 10 percent‚ the second straight increase. In February‚ pay for these workers went up by nearly 8 percent. Meanwhile‚ for workers who stayed in their current positions‚ wage gains...