Time is running out for a compromise that would prevent the U.S. auto industry’s largest worker strike in history.

Quinnipiac University management professor Robert Yawson says even just a 10-day strike could cost the U.S. gross domestic product $5 billion.

“This would definitely contribute to higher inflation. We all saw what happened to the supply chain, and it will affect everything from groceries to everything else," said Yawson.