The US economy expanded at a 2.8 per cent annual rate from July through September, a surprising acceleration ahead of the 16-day partial government shutdown. But much of the strength came from a buildup in company stockpiling.
Home construction also rose, and state and local governments spent at their fastest pace in four years. But businesses spent less on equipment, federal spending fell and consumers spent at a slower pace. All are cautionary signs for the final three months of the year.
Overall, growth increased in the third quarter from a 2.5 per cent annual rate in the April-June period to the fastest pace in a year, the Commerce Department said.
The third-quarter growth was nearly a full percentage point stronger than most economists had predicted. Analysts noted that much of the unforeseen strength came from a buildup in company inventories. That suggests that businesses overestimated consumer demand.
Restocking contributed 0.8 percentage point to growth double its contribution in the second quarter.