“We could see a hit to the GDP, a hit to growth and a hit to working America.”Prolonged failure to reach a deal would be costly.“We estimate that each week of shutdown would reduce US GDP growth by 0.1 percentage points (ppt) in Q4 (in annualized terms), translating into a $7 billion weekly hit to the economy,” a report by EY Parthenon said, citing the effect of lack of pay for furloughed federal workers, delayed government procurement of goods and services and decline in demand.