Indeed, the decade-long economic rebound from the financial crisis has been impressive more for its durability than for its strength. Millions of Americans remain stuck in part-time or temporary work, and many of the middle-class jobs wiped out by the recession have never returned. As a share of the population, employment remains well below its 2000 peak, a gap only partly explained by the aging population.

Most significant, strong hiring has not yet translated into robust raises for many workers. Average hourly earnings rose 2.8 percent in September from a year earlier, down from 2.9 percent in August and well below the growth that economists would usually expect with the unemployment rate this low.

But there are signs that wage growth could at long last be gaining momentum. Before last month’s hiccup, the pace of growth had been drifting upward. Industries where labor is especially tight, such as construction and technology, are seeing wages rise faster.

Workers at the bottom of the earnings ladder, who were left behind early in the recovery, are now seeing particularly strong growth: Amazon announced this week that it would raise the minimum wage for its employees in the United States to $15 an hour.

Amy Glaser, a senior vice president at the staffing firm Adecco, heard the Amazon news on television while preparing for a meeting with a rival e-commerce firm. Ms. Glaser helps companies hire for the holiday season, a task that Amazon had just made even more difficult for them.

“There was definitely a feeling of concern,” she said. “It puts increased pressure on them in a market where they already knew they were going to have to make significant adjustments on wages.”