How much do temporary drags slow quarterly GDP growth?
Core argument: Quarterly annualized GDP growth is expected to slow from +3.1% in Q3 to +1.3% in Q4, compared with consensus forecasts of +2.9% and +0.6%.
First, we expect the resumption of student loan payments to subtract 0.5pp from quarterly annualized GDP growth. Second, the federal government looks more likely than not to temporarily shut down. A government-wide shutdown would reduce quarterly annualized growth by around 0.2pp for each week it lasted. Third, we estimate that reduced auto production from a potential UAW strike would reduce quarterly annualized growth by 0.05-0.10pp for each week it lasted, if all three companies currently undergoing contract negotiations are impacted. We expect quarterly annualized GDP growth to slow from +3.1% in Q3 to +1.3% in Q4 (vs. consensus of +2.9% and +0.6%). We expect the slowdown to be shallow and short-lived, with GDP growth rebounding to +1.9% in Q1 (vs. consensus of +0.1%) as these temporary drags abate and income growth reaccelerates on the back of continued solid job growth and rising real wages.


