The top economist at EY thinks the US economy faces a 'trifecta' of threats that could make Americans stop shopping and cause a slowdown

• EY chief economist Gregory Daco thinks "consumers are becoming more conservative with their spending."
• That's partly because of elevated inflation, which also sped up recently.
• Coming up is another headwind: the restart of federal student-loan payments.

After boosting the US economy over the last couple years through a wave of spending on everything from restaurant visits to Taylor Swift tickets, the American consumer might be running out of steam.