If countries unload their Treasuries, that means the pool of Treasuries increased (supply up). New Treasuries being issued by the Treasury has to compete with old Treasuries so they can sell and that means they are forced to have higher interest to pay the investors more and make them more attractive. New Treasuries need to be issued by the Treasury to pay the yearly deficit which is $1 trillion a year now. Higher interest rates on Treasuries are passed on to the banks as higher borrowing interest, which raises the business expenses of companies.
Fed can buy up excess Treasuries through quantitative easing by printing money to buy up the Treasuries but something happens. This is uncharted territory when a central bank now holds over $4.5 trillion in debt.
Fed held treasuries have only two fates:
1. They are allowed to mature, which means the Treasury has to pay the Fed, and the only way to do that is to further increase the deficit --- which is used to pay for the maturing notes and their interest --- by issuing more Treasuries. Payment of these treasuries by maturation is part of the yearly deficit. So the hole only gets bigger. And to soak up more excess Treasuries, which means more QE, which means printing more money to use to buy these Treasuries, and printing more money will lead to inflation and devaluation of currency.
2. Sell the Treasuries to the market so that investors, like foreigners, buy them. This has the same effect as countries unloading their Treasuries, and you will be forced to raise the interest rates of your new Treasuries to compete with the older ones. This leads us back to the first paragraph.
For either, the result is a cyclical black hole because more debt is being made to pay off existing debt.
Point 1. ->
Point 2. Same as point 1 .The FED is capable to manipulate the yield curve. It target the inflation and unemployment, and that is affected by the supply/demand of goods NOT by the amount of treasuries on the open market.
In practice the treasuries has a very liquid secondary market, and on that the price of the treasury calculated based on the maturity and interest, with a discount.
So, if the current treasury yield 3% then the you can buy a 100$ atone year later maturity for bit less than 97$.
So, how China can push down the discount of treasuries, if the FED simply keeping to lend the banks on the same interest rate, so they capable to mop up the Chines treasuries ? I mean, China needs to increase the unemployment OR increase the prices.
The custom increase the prices, but the increase in price 1:1 coming from government income (customs).
I think China can be more successful if it start an EXPORT customs for Chinese good if want to increase the treasury discount. That will increase the inflation without increase in the government income.