US Growth Accelerates to 3.4%, but September Spending Stalls After Inflation

The U.S. economy expanded at a 3.4% annualized rate in the third quarter, up from 2.2% in the second, the Bureau of Economic Analysis reported Thursday. A separate September spending release showed a more difficult finish to the period: consumers paid more without buying appreciably more after inflation.

That combination gives investors two different signals from the same morning’s data. Growth remains resilient enough to challenge expectations of easier monetary policy. Household purchasing power, however, is under pressure, limiting how confidently businesses can extrapolate the quarter’s performance into the holiday shopping season.

The GDP estimate is adjusted for inflation and describes July through September. Its annualized rate expresses how fast output would grow if that quarterly pace continued for a full year. It does not mean the economy expanded 3.4% in three months. BEA’s technical notes put the actual quarterly increase at 0.8%.

Investment strengthens, while trade subtracts

BEA identified investment, consumer spending and government spending as positive contributors. Exports fell and imports increased. Investment’s acceleration and a rebound in government spending helped explain why overall growth picked up from the second quarter, despite a less favorable trade contribution.

The equipment increase was led by computers and peripheral equipment. Inventories also rose, particularly in wholesale trade and manufacturing. These are different sources of growth: equipment can expand productive capacity, while accumulating unsold goods can reflect stocking decisions that will not necessarily repeat in the next quarter.

A useful measure of demand beneath those fluctuations is real final sales to private domestic purchasers, which combines consumer spending with private fixed investment. It rose at a 4.9% annualized pace, compared with 4.6% previously. That measure excludes inventory changes, government purchases and net exports, helping distinguish private domestic demand from shifts elsewhere in the accounts.

Imports also require careful interpretation. They are subtracted in GDP accounting because purchases made abroad are already captured in other spending categories. The subtraction prevents foreign production from being counted as U.S. output; an increase in imported equipment can still accompany businesses investing in their operations.

September’s higher bills bought little extra

The monthly household figures were less comfortable. Spending in current dollars increased 0.5% in September, but the PCE price index also rose 0.5%. After adjusting for prices, consumption increased less than 0.1%, rounded to zero in BEA’s summary table. In August, real spending had risen 0.5%.

Disposable income, meaning income after personal taxes, increased 0.2% before inflation but fell 0.3% in purchasing-power terms. The saving rate was 3.8%. These figures help explain why solid aggregate output does not automatically translate into households feeling better off: the amount available to spend and the amount that money buys can move in opposite directions.

Headline PCE inflation reached 3.6% from a year earlier. Excluding food and energy, prices increased 0.3% for the month and 3.1% over the year. The distinction between a slower inflation rate and a lower price level, also relevant to reading consumer-price reports, matters when judging pressure on family budgets.

A difficult backdrop for the Fed

The figures arrived a day after the Federal Reserve held its policy range at 3.75% to 4%. Two officials preferred a quarter-point increase. The statement described strong activity and robust capital investment while emphasizing that inflation remained elevated and further information would guide policy.

Thursday’s releases reinforce that tension without settling the next decision. Sustained demand can support company revenues, but persistent inflation can keep borrowing costs restrictive. For consumer businesses, nominal sales growth needs to be separated from growth in quantities sold, particularly when assessing the signals coming from retailer earnings.

This is an advance GDP estimate, scheduled for revision on November 25. The immediate issue is whether September’s weak real spending was a pause within a strong expansion or an early sign that higher prices are constraining the next quarter.