The underlying assumption of all the economic rescue plans, is that the U.S. Government remains an unassailable credit. In the economic textbooks and financial theory, the interest rate on short-term Treasury securities is the "risk free rate." That is the bedrock upon which sits the world credit markets and indeed the entire superstructure of the global economy. There is no more powerful term of art in the financial markets than the guarantee that comes with "the full faith and credit" of the U.S. Government. As we spend voraciously to stimulate the world economy, this requires careful attention.
If for a second, this assumption is shattered, woe be to all of us. The last line of defense cannot be breached. This goes by different names: a dollar crisis, runaway inflation, a systemic crisis. It all boils down to the same thing. In a modern economy, everything depends on faith and confidence and most importantly faith in the U.S. Government to have the capacity and will to honor its debts. The remarks by China's Premier Wen Jiabao on Thursday were an early warning. When you owe someone $1 trillion, it pays to listen. Of course, he also needs to be careful or we won't be able to pay him.
Debtors generally lose their standing not when they have too much debt but when their liquidity runs out; they have no more capacity to raise additional funds to service their debts. The U.S. borrows for the long term, as long as thirty years, to finance highways and airports and all types of infrastructure -- many projects that won't pay off for years or decades. Over time those debts have always been paid but they cannot all be paid today. The danger is when the debts mount so high and rapidly and when funding dries up. Even the mightiest borrower can be brought down if they have not carefully planned for such a rainy day.
The U.S. must guard against this possibility in every available way. The U.S. Government balance sheet -- it's tally of cash and borrowings -- is the critical defense against the economic troubles spreading around the globe. If the Federal balance sheet is perceived as shaky, there is no saving the global economy from complete disaster. While this sounds dire, it is, but it is also highly unlikely if proper precautions are taken.
Part of the recklessness of this decade has gone largely unmentioned. While the Federal debt has roughly doubled, the average payment period has halved. This seemingly technical point is in fact a major risk factor that should be reversed as soon as possible. At one point early in the decade when debt was low, the Treasury briefly stopped issuing its longest bonds, 30 year maturities. The average debt maturity shortened to only three years. That means that every year the Treasury had to raise enough money to cover one-third of the debt. Between the shortened maturity and the rise in debt, annual funding needs more than quadrupled.
The Government's action was comparable to a homeowner putting his mortgage or car loan (typically four to seven years effectively) on their credit card, whose balance is payable in full on demand.
Why did this happen? Interest rates were historically low and short-term borrowing was a lot cheaper than long (the yield curve was historically steep). Now interest rates for the Government are even cheaper and it's still beneficial to borrow for short term -- months rather than years.
The Government should resist that temptation and step up the longer-term borrowing. One expert has even proposed 100 year borrowings to get us over the hump of baby boom retirements. In the short-term it will be more expensive to extend borrowings. But if we put too much pressure on the credit markets by constantly coming to market with tens of billions of dollars of short-term borrowings, it raises the likelihood of the credit markets balking. By taking precautions, that need not happen. Once it happens, there's no turning back so we should sacrific whatever is necessary to avoid that possibility.