The federal government is heading toward a shutdown. Here's what economists say would be the impact.

A government shutdown could begin within days, halting pay for hundreds of thousands of federal workers and delaying services, as lawmakers remain deadlocked over funding past Sept. 30.

The financial impact of a shutdown typically depends on the length of the disruption, with each week costing the U.S. economy about $7 billion, according to a new analysis from EY-Parthenon Chief Economist Gregory Daco. A suspension could also weigh on investor and consumer confidence at a time when the U.S. economy is already facing headwinds, he told CBS News.

Government shutdowns aren't new: The U.S. has experienced 14 of them since 1980, with the longest occurring over 34 days from December 2018 into January 2019, according to the Bipartisan Policy Center. They're triggered when Congress fails to pa