Right now, the chief economist at the Institute of International Finance, Robin Brooks, is watching weakening commodity prices.
Specifically, Brooks pointed out that oil and copper prices have slumped roughly 6% each since mid-January, despite China's easing of zero-COVID policies.
"Whatever is going on in China, there's no sign that the end of zero-COVID is boosting global growth, based on commodity prices," Brooks said in a tweet.
"Oil prices never went up and copper prices are falling after the initial China reopening excitement fades."
He pointed to the sharp change in oil prices last week as an example of shallower liquidity.