To understand the furor over the decision by Standard & Poor’s, the rating agency, to downgrade US government debt, you have to hold in your mind two seemingly (but not actually) contradictory ideas. The first is that the US is indeed no longer the stable, reliable country it once was. The second is that S&P itself has even lower credibility; it’s the last place anyone should turn for judgements about the US’ prospects.
Let’s start with S&P’s lack of credibility. If there’s a single word that best describes the rating agency’s decision to downgrade the US, it’s chutzpah — traditionally defined by the example of the young man who kills his parents, then pleads for mercy because he’s an orphan.
The US’ large budget deficit is, after all, primarily the result of the economic slump that followed the 2008 financial crisis. And S&P, along with its sister rating agencies, played a major role in causing that crisis, by giving “AAA” ratings to mortgage-backed assets that have since turned into toxic waste.
Nor did the bad judgement stop there. Notoriously, S&P gave Lehman Brothers, whose collapse triggered a global panic, an “A” rating right up to the month of its demise. And how did the rating agency react after this “A”-rated firm went bankrupt? By issuing a report denying that it had done anything wrong.
So these people are now pronouncing on the creditworthiness of the US?
Wait, it gets better. Before downgrading US debt, S&P sent a preliminary draft of its news release to the US Treasury. Officials there quickly spotted a US$2 trillion error in S&P’s calculations. And the error was the kind of thing any budget expert should have gotten right. After discussion, S&P conceded that it was wrong — and downgraded the US anyway, after removing some of the economic analysis from its report.
As I’ll explain in a minute, such budget estimates shouldn’t be given much weight in any case, but the episode hardly inspires confidence in S&P’s judgement.
More broadly, the rating agencies have never given us any reason to take their judgements about national solvency seriously. It’s true that defaulting nations were generally downgraded before the event. But in such cases the rating agencies were just following the markets, which had already turned on these problem debtors.
And in those rare cases where rating agencies have downgraded countries that, like the US now, still had the confidence of investors, they have consistently been wrong. Consider, in particular, the case of Japan, which S&P downgraded in 2002. Well, nine years later Japan is still able to borrow freely and cheaply. As of Friday, in fact, the interest rate on Japanese 10-year bonds was just 1 percent.
So there is no reason to take Friday’s downgrade of the US seriously. These are the last people whose judgement we should trust.
And yet the US does have big problems.
These problems have very little to do with short-term or even medium-term budget arithmetic. The US government is having no trouble borrowing to cover its current deficit. It’s true that we’re building up debt, on which we’ll eventually have to pay interest. However, if you actually do the math, instead of intoning big numbers in your best Dr Evil voice, you discover that even very large deficits over the next few years will have remarkably little impact on US fiscal sustainability.