You cannot have it both ways. Either the bond credit ratings mean something, or they don't. Public officials cannot point to the AAA ratings as evidence of good policy, then lambast them as "inaccurate" and "flawed" when they drop to AA+....or below.
It is a fact that the ratings agency does not originate information; it simply gathers and interprets data that are publicly available to all of us. The rating itself, however, is unique in that it summarizes a particular agency's forecast of how likely the US government is to repay its debt and sustain its borrowing needs.
Don't get me wrong -- there is a LOT of information out there about the risk-adjusted rate of return on US debt to be digested. But we don't have to re-examine it from the ground up -- we need only look at the marginal changes, the most recent developments, the direction of change, to update our expectations, and -- in my view -- to understand easily why S&P downgraded the debt.
I think most of us realize that all government spending is financed by the private economy but I'm not as sure that everyone realizes that the return on government debt is also enabled by the productivity of the private economy. The more productive the private economy, the higher rate of real return we can afford to pay on U.S. debt, and the more willing others are to buy our debt. Being able to generate a return on debt is a good thing -- it's a sign of a healthy economy.
Then there is the other side of the equation: the required return on debt from the point of view of the lender. The lender assesses the risk (or likelihood or uncertainty) that they will get their money back (and that the "money" is worth the same per dollar....so we are ignoring inflation just to simplify things). The less certain they are, the higher the return they are going to demand before they buy the debt. This required rate of return is a cost to the economy -- a higher cost eats away at profits, and makes the economy less productive, less able to reinvest, employ capital and labor, and grow.
In the simplest terms, government spending is supported first by taxes and then, when those run out, by borrowing. The debt ceiling debate made it clear that Washington was unwilling or unable to reduce or curtail government spending, which was on its way to starving the private economy of the sufficient earnings, liquidity and financing to continue to be productive. The wealth creation capacity of the private economy is vast and impressive and has somehow miraculously employed labor and capital and supported AAA rating returns on government debt for a very long time, but it's not limitless.
No, the ratings do not originate information. They simply publicly confirmed what many of us who understand and respect what private enterprise does day in and day out saw coming: the current level of government spending is unsustainable. The private economy cannot take much more of the oppression and costs imposed by government policy, taxes, fees, regulations and -- perhaps the most troubling and insidous of all -- the public denigration and disparagement of the private economy, Wall Street and capitalism by our President.
It will be very interesting to see if this was a surprise to the markets.


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