Shutdown Will Cost U.S. Economy $300 Million a Day, IHS Says

A partial shutdown of the federal government will cost the U.S. at least $300 million a day in lost economic output at the start, according to IHS Inc.

While that is a small fraction of the country’s $15.7 trillion economy, the daily impact of a shutdown is likely to accelerate if it continues as it depresses confidence and spending by businesses and consumers.