Dockworkers at 36 ports across the eastern U.S. are now on strike for the first time in decades. And the work stoppage could snarl supply chains — leading to shortages and higher prices if it stretches on for more than a few weeks.

Dockworkers at ports from Maine to Texas began walking picket lines early Tuesday in a strike over wages and automation that could reignite inflation and cause shortages of goods if it goes on more than a few weeks.

Dockworkers at ports from Maine to Texas began walking picket lines early Tuesday in a strike over wages and automation that could reignite inflation and cause shortages of goods if it goes on more than a few weeks.