Government shutdown could cost US economy billions of dollars a week, analysts say

1. Federal government shutdown could cost the US economy billions weekly. 2. Shutdown may reduce GDP growth by 0.1 percentage points per week. 3. Potential job loss of 43,000 workers with prolonged shutdown. 4. Shutdown impacts consumer spending by approximately $30 billion per month. 5. Financial markets may weaken due to increased uncertainty and delayed data.