Unit 4 · Level 2 · Global flows
Petrodollars to multipolar
Since the 1970s, most of the world's oil has been priced and paid for in US dollars. That single convention forced every energy importer on Earth to hold dollars: a colossal, permanent source of demand for America's currency. Today some commodity trade is drifting toward other currencies. The drift is real; the speed is very much debated.
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What you get asked
Why did pricing oil in dollars strengthen the dollar's global role?
If your power plants run on oil and oil costs dollars, you must earn and stockpile dollars, no matter what you think of the US. Energy trade quietly conscripted the whole world into dollar demand.
Oil exporters investing their dollar earnings back into Western bonds and assets became known as petrodollar ___.
Gulf states earned oceans of dollars and parked them in US Treasuries and global assets: dollars flowing out for oil, then straight back in as investment. A perfect loop reinforcing the throne.
Order the petrodollar story from origin to today
Half a century of oil-for-dollars built deep habits. Russia now sells oil to China in yuan, and others experiment: chips chipped off the monument, not its collapse.
Honestly, how far has 'de-dollarization' actually progressed so far?
Dollar reserves have drifted from ~70% to ~58% over two decades, yet no rival comes close: the yuan is a low single-digit share of reserves. Real trend, glacial pace; be suspicious of anyone selling either denial or doom.
If commodity trade keeps diversifying away from dollars, the likely effect is:
Reserve currencies fade the way the British pound did: over generations, not headlines. Watch the slow data, ignore the dramatic predictions in both directions. 🐜
The rest of this unit
Trade balances, petrodollars, and the money that flees at midnight.