Treasury bonds are auctioned by the Treasury department. It is an auction: banks say what rates they will accept, the ones who offer the lowest rate get the bonds. You can agree to buy bonds without bidding, in which case you just get whatever rate the auction sets.
So Treasury does not set the rates and say “take it or leave it.”
The rates for short term bonds are close to the Federal Reserve rate, longer term bonds can diverge a lot based on how much banks think the future is dangerous. After all if you’re locked in for five, ten or twenty years, and bond interest rates go up, you just took a bath relatively speaking. And since they probably went up because inflation went up, you could wind up with less real money than you started with. With short term bonds you can take a loss, but you aren’t stuck with it.
This is the primary market. The secondary market is FAR larger and is people selling bonds that already exist to each other. If interest rates go up, the price of existing bonds goes down, and vice-versa.
The largest holders of Treasury bonds outside of the US are Japan, China and the EU. If they sell a lot of bonds (and Japan is considering it) then for the usual reasons, the price will go down on bonds and that means interest rates need to rise in the next auction. If I can get bonds for cheaper, I’m not going to buy them off the primary market or from primary dealers.
Now there are banks who are required to buy bonds. First there are primary dealers, 25 of them: they have to bid. But they aren’t required to take the interest rates Treasury wants taken. As a rule they’ll try to be close to what Treasury wants, being a Primary Dealer is valuable, but they aren’t going to cut their throats.
The secondary market effectively determines the minimum interest rate that Primary Dealers can accept, because if they accepted less they’d be buying bonds worth less than bonds on the secondary market. They’re not going to eat billions of dollars of losses.
Next we have the fact that all US banks are essentially required to hold Treasuries as part of their liquidity requirements. Most assets count for liquidity, but only some assets are counted at 100%. Treasuries count, because the idea is that the Feds can always print money and therefore you are always sure to at least get your interest payments. The federal government cannot go bankrupt, so long as the US debt is denominated in dollars.
BUT as prices for bonds drop, which remember happens in inverse to interest rates on new bonds and also drop if there’s much more selling than buying on the secondary market, the value of the bonds that all these banks hold as their reserve requirement also drops.
So if Treasuries become a lot cheaper the banks suddenly can’t, en-masse, and for no fault of their own (this time) meet their liquidity requirements. And then you have a potential banking crisis.
Yes, the Fed could then step in and pull some arguably illegal shenanigans. But that has its own downsides. The bottom line is that if the world suddenly doesn’t want as many Treasuries as the debt and interest payments requires, the US has a real problem.
Go back to “as long as US debt is denominated in dollars”. A lot of counries can’t borrow in their own currency, or can’t borrow all the money they need. So they issue bonds denominated in other currencies, usually the US dollar.
If there isn’t enough demand for US bonds, then suddenly the US is in the same position. Bear in mind, even if I want exposure to the US, do I want it in Treasuries? After all, it’s the stock market that’s been super juicied, and if I think inflation is going to go up significantly, why buy Treasuries now? Why not wait?
But this where the rest of the current clusterfuck comes in. There’s every reason to believe that inflation will go up. A barrel of diesel is now selling for around $180 dollars. The Iran mess shows no end in sight. AI looks like a circle jerk bubble.
What happens if AI is a bubble and bursts at the same time as all this is going on?
Well that tanks the stock market. Suddenly foreigners want a lot less US dollars, since they don’t want as many US bonds or stocks.
If this happens, the US dollar starts falling. All assets owned in US dollars become worth less to everyone, foreigners and domestic, since the US dollar can buy less (remember, net importer.)
What we have right now is a perfect storm: the AI bubble, treasury bond problems, the Bank of Japan needing to sell treasuries to prop up the Yen, the Iran war. The US isn’t intervening to help Japan with the Yen because out of the goodness of their own hearts, most of these people would sell their own kids into sex slavery if it’d help them get ahead. They’re doing so because if they don’t help Japan, Japan will help itself by selling potentially hundreds of billions of Treasuries in a short time.
If you’ve been following, you know that means that bond prices will drop and interest rates on new issues will have to go up and banks will become insolvent. It also will mean that a lot of other people will sell because they’ll get hit by margin calls as the value of their portfolio drops precipitously.
This is a real problem. It is not fake. And because it is a few problems: the Iran war, the carry trade, the AI bubble all at the same time, it’s very hard to manage.
If Trump had a lick of sense or wasn’t being blackmailed by Israel (or whatever the reason is) he’d end the damn war tomorrow and give Iran what is needed, because keeping the war going is risking the entire ball of wax.
Once the US loses dollar hegemony, it won’t get it back because most of the world hates it and Russia/China and others have been working hard to create SWIFT alternatives. Likewise if the US loses dollar hegemony most of the West can expect a huge hit to standards of living.
Dollar hegemony could have continued for another twenty years if the US had played nice with China and Russia, not abused sanctions, and not started stupid wars. Moving off has real costs and if the price of staying on wasn’t high, countries would have just gone along with it. But the US made unnecessary enemies and fucked around, and now it’s going to find out. If not during this crisis conflux, then the next, and there will be a next.
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