Americans get back to their spending ways. Economy might be speeding up again.

The August rebound in consumer spending suggests household demand remains resilient even as the economy absorbs a series of strains. Because consumer outlays account for roughly two-thirds of U.S. economic activity, shifts in spending behavior are among the most closely watched signals of underlying momentum. A snapback after a brief lull implies that whatever held spending down earlier in the summer may have been temporary rather than a change in direction.

For markets, the key question is what renewed strength means for the path of interest rates and corporate earnings. Faster growth can support revenue expectations, but it can also complicate the inflation outlook if demand outpaces the economy's capacity to supply goods and services. That tension is central to how policymakers and investors interpret incoming data.

What to watch: whether the August pickup persists in subsequent months, how it interacts with inflation and labor-market readings, and whether the strains cited alongside the data prove transitory or start to weigh more heavily on households.