To say that government is successful if it taxes as much as it spends is like saying an oil company is successful if it collects as much oil from its customers as it sells to them.
An oil company is successful if oil flows out to its customers, and does not come back.
How does the government fund itself? I see the taxes as a means of income for our government. What else would there be for our government to draw an income from?
- Let's go one more post, because this will really wrap this up.
Treasury securities. If government doesn't need to tax to spend, it doesn't need to borrow, either. So why does it?
When your bank accepts the deposit of a government check, it gets awarded with an amount of reserves equal to the value of your check.
We know that banks don't need that many reserves - you're not going to spend all your money in one day, and the Fed only requires that it keep 10% of the value of its transaction accounts (checking deposits) in reserve balances.
So 90% of the reserves your bank received for your bank deposit are excess - your bank does not need to keep them, and would like to invest them somewhere that they earn some interest. Since your bank is not allowed to "withdraw" reserves, it really doesn't have any options, unless the Fed will sell them something that pays interest.
The Fed will, indeed, do that. It will sell your bank Treasuries in exchange for reserves, and Treasuries pay interest. Your bank will, of course, buy as many Treasuries as it can, keeping its reserve balance as close to the 10% requirement as possible, in order to earn the most possible interest on reserves.
Why would the Fed do this? Why would the Fed gratuitously sell bonds which obligate the government to pay interest?
The Fed has the mission of controlling inflation (among other things). After decades of experimentation, the Fed decided in the 1980s that the best way to do that was to control interest rates, which they felt operated inversely with inflation.
Their thinking is based on the theory of the term structure, which holds that all interest rates pay the same, no matter what the maturity of the loan. If I lend you money overnight, or over thirty years, I want the same rate of return. That means to get it I have to charge you a higher rate of interest for a longer term loan than for an overnight loan, because my inflation risk is higher.
There ought to be a logical structure of interest rate terms, a curve on which the interest rates for all maturities lie. If the interest rate for 10 year loans were suddenly to become more profitable than for other loans, lenders would start trying to sell more ten-year loans, and that would make the price fall through arbitrage so that all interest rates were again equally profitable.
In other words, if it's possible to control one interest rate, it should really be possible to control them all.
That meant the Fed had to control just one interest rate. The problem is that the Fed is not allowed, by law, to dictate any interest rates. Their solution was to create a market for loans of a certain type where they could control the interest rate by controlling what was bought and sold in the market, and by controlling the currency which was used to buy what was bought and sold.
By requiring banks to keep a certain percentage of the value of their deposits in reserve accounts at the Fed, the Fed realized that it could force banks to borrow reserves from each other, if it could convince banks to leave themselves in positions where they might run short of reserves.
The Fed, by selling interest-bearing Treasuries, is inducing banks to reduce their reserve balances as much as possible. That leaves banks at risk of running short of the reserve requirement, which forces them to borrow reserves from other banks, on an overnight basis.
The Fed, having induced banks into a lending market which it could control, now needed a way to control the interest rate at which banks lent each other reserves - thus, in theory, controlling all interest rates by inducing arbitrage throughout the term structure. The Fed did this by offering Treasuries for sale, or offering to buy Treasuries, almost on a daily basis, to create excesses or shortages of reserves which would change the interest rate that banks charged each other for loans of reserves.
That's the role that Treasuries have played. That's why government has needed to issue them - not because it needs to borrow money, but because it needs its central bank to be able to conduct monetary policy, which largely means controlling interest rates.
In fact, as you can see, Treasuries are issued AFTER spending has taken place in order to sop up the excess reserves created by federal spending, not before spending to enable it.
Two notes. The system is in fact a little more complex than this. Because the federal government does not receive and spend money on an even daily basis, tax days would cause large reductions in reserves which would push interest rates up, and paydays would create large amounts of reserves which would push interest rates down. This is called the "reserve effect". In order to buffer it, the Fed and Treasury coordinate to hold Treasury money balances in commercial banks, in accounts called Treasury Tax and Loan accounts. By depositing tax receipts into TTL accounts, it prevents large reserve drains, which can be eased out over time as the government slowly "deposits" those tax receipts with the Fed over time.
Second, after QE, this whole scheme became largely meaningless. Banks are stuck with tons of excess reserves, because the Fed created a shortage of Treasuries by buying so many of them. Banks no longer borrow reserves, and the fed funds rate is meaningless as it was formerly constructed. The Fed's approach has been to pay banks interest on reserves directly. This creates an opportunity cost for banks to lend out reserves - they won't do so unless they can get more interest than the Fed pays them, so the fed funds rate is established that way. When Yellin talks about raising interest rates, what she will actually do is raise the interest rate she pays banks on their reserves.
So where does that leave Treasuries, since they are no longer needed for borrowing, and no longer needed to control interest rates? It's an open question. Most economists who understand the system still think there will be a policy role for Treasuries in the future (if QE is unwound, for example), but many don't, and see no more need to issue Treasuries.
I think the Fed will continue to issue them, because they serve a role in enabling financial stability. They are a safe and liquid investment, and serve a vital role in money markets. They also help induce international trade - foreign banks are more likely to be happy accepting US dollars (which don't pay interest) if they can swap them for Treasuries (which do). Any privately produced substitute for Treasuries would probably be deeply destabilizing. The 2008 crisis was largely, I think, triggered by something very like this. With high trade deficits, foreign banks were hungry for Treasuries, and there simply weren't enough. The financial markets offered these very highly rated bonds based on collateralized mortgage debt as a substitute, and the rest is history.