An ongoing US dockworkers strike could cost the economy up to $4.5 billion daily and shave a half percentage point off of US GDP for the fourth quarter, analysts say. But experts agree the overall economic impact will be modest. The strike could result in one of the greatest supply chain disruptions since COVID-19.

The union representing U.S. dockworkers has signaled that 45,000 members will walk off the job at midnight, kicking off a massive strike likely to shut down ports across the East and Gulf coasts.