The answer, I’d suggest, is an excess of virtue. Righteousness is killing the world economy.

What, after all, is our fundamental economic problem? A simplified but broadly correct account of what went wrong goes like this: In the years leading up to the Great Recession, we had an explosion of credit (mainly to the private sector). Old notions of prudence, for both lenders and borrowers, were cast aside; debt levels that would once have been considered deeply unsound became the norm.

Then the music stopped, the money stopped flowing, and everyone began trying to “deleverage,” to reduce the level of debt. For each individual, this was prudent. But my spending is your income and your spending is my income, so when everyone tries to pay down debt at the same time, you get a depressed economy.

So what can be done? Historically, the solution to high levels of debt has often involved writing off and forgiving much of that debt. Sometimes this happens explicitly: In the 1930s F.D.R. helped borrowers refinance with much cheaper mortgages, while in this crisis Iceland is outright canceling a significant part of the debt households ran up during the bubble years. More often, debt relief takes place implicitly, through “financial repression”: government policies hold interest rates down, while inflation erodes the real value of debt.

What’s striking about the past few years, however, is how little debt relief has actually taken place. Yes, there’s Iceland — but it’s tiny. Yes, Greek creditors took a significant “haircut” — but Greece is still a small player (and still hopelessly in debt). In major economies, very few debtors have received a break. And far from being inflated away, the burden of debt has been aggravated by falling inflation, which is running well below target in America and near zero in Europe.

Why are debtors receiving so little relief? As I said, it’s about righteousness — the sense that any kind of debt forgiveness would involve rewarding bad behavior. In America, the famous Rick Santelli rant that gave birth to the Tea Party wasn’t about taxes or spending — it was a furious denunciation of proposals to help troubled homeowners. In Europe, austerity policies have been driven less by economic analysis than by Germany’s moral indignation over the notion that irresponsible borrowers might not face the full consequences of their actions.