New York based Gruenwald, who visited Auckland this week, notes that consumer spending now accounts for nearly 70 per cent of GDP in the US.
In New Zealand that figure is more like 57 per cent.
So even as trade-war woes hit market confidence and sectors like manufacturing and agriculture in the US, recession was not a certainty, he said.
Volatile equity markets and gloomy bond markets, with inverted yield curves, make the headlines.
"That's a path to pay attention to," he said.
"But really, the more important one for the US is employment, wage growth and consumer spending. That's going to be the big driver."
As long as employment and consumer confidence stay solid there is likely to be a baseline of at least some GDP growth.
So far unemployment levels have remained stuck near record lows in both the US and New Zealand.
We saw unemployment fall to just 3.9 per cent in the second quarter.
Despite that, there was still concern around the employment outlook in New Zealand, ANZ's Zollner said.
"While the labour market is undeniably tight at the moment, that appears set to change," she said.
A key downside risk over the year ahead is that employment indicators have deteriorated.
That is to say the employment intentions section of all the major business surveys, and actual job ads, point to less hiring.
If there's anything that will stop your shopping spree in its tracks, its losing your job.
To get a sense of the balance between business and consumer confidence, ANZ puts together a composite index.
Closely tracking actual GDP growth the combined index provided a better indicator than either series individually, Zollner said.
Unfortunately it still shows a negative trend.
It suggests we could see GDP growth dipping at least as low as 2 per cent in the next six months (It's currently 2.5 per cent year on year).
But that's not a recessionary slump.
"The composite remains within recent low ranges, in line with our pick that while economic growth slowed this year it is finding a floor," Zollner said.
"We expect that the 50bp OCR cut delivered in August will filter through to consumers in time which should lift confidence, as long as the labour market holds up."
So there's hope. Get out there this weekend and have some fun, buy those new shoes.
You'll be doing your bit for the economy.
Consumer power won't be enough in itself to stave off a slowdown, but it will play an important role in maintaining momentum as we head through a tough part of the economic cycle.