There is no commodity supercycle. There is a global inventory supercycle underway thanks to the COVID shock, stimulus and reopening. It works roughly like this:
Such a cycle can trick the unwary (and markets) into believing that short-term changes in demand patterns and inflationary impacts are permanent. They are not.
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There is no saying precisely when the cycle peaks, and it will happen at a different pace in different areas, but one indicator we can look to is the JPM global PMI and it just rolled over: