Fight disinformation. Get a daily recap of the facts that matter. Sign up for the free Mother Jones newsletter.

Paul Krugman writes in the New York Times magazine this week about how economists got everything so wrong.  “As I see it,” he says, “the economics profession went astray because economists, as a group, mistook beauty, clad in impressive-looking mathematics, for truth.”  Brad DeLong puts it this way:

The big lesson, I think, is that Wall Street is much less sophisticated than we imagined it was: Goldman Sachs simply did not do any of the due diligence it needed to do to understand the AIG-specific risks it was assuming, Citigroup was unable to manage its own derivatives book to understand what “liquidity put” risks it was assuming, and as for Bear Stearns, Lehman Brothers, Merrill Lynch — hoo boy…

Oh my, yes.  Wall Street bankers are smart, and rich, and experienced, and knowledgable — but they aren’t sophisticated.  They are hairless apes a few gene mutations removed from the savannah who only think they’re sophisticated.

So what to do?  Krugman thinks the Great Recession will affect macroeconomics about the same way that black body radiation1 affected physics: it will uproot it completely.  Markets are no longer plausibly efficient, neoclasscial economics plainly doesn’t work, and market agents are far more irrational than anyone thinks:

So here’s what I think economists have to do. First, they have to face up to the inconvenient reality that financial markets fall far short of perfection, that they are subject to extraordinary delusions and the madness of crowds. Second, they have to admit — and this will be very hard for the people who giggled and whispered over Keynes — that Keynesian economics remains the best framework we have for making sense of recessions and depressions. Third, they’ll have to do their best to incorporate the realities of finance into macroeconomics.

Many economists will find these changes deeply disturbing. It will be a long time, if ever, before the new, more realistic approaches to finance and macroeconomics offer the same kind of clarity, completeness and sheer beauty that characterizes the full neoclassical approach. To some economists that will be a reason to cling to neoclassicism, despite its utter failure to make sense of the greatest economic crisis in three generations. This seems, however, like a good time to recall the words of H. L. Mencken: “There is always an easy solution to every human problem — neat, plausible and wrong.”

Sounds like a good time to become an economist, if you ask me.  There’s work to be done.

1Sorry for the obscure reference, non-science folks.  Max Planck’s solution to the black body radiation problem in 1900 was the starting point of quantum mechanics, which uprooted all of classical physics.  See here for more.

HERE ARE THE FACTS:

Our fall fundraising drive is off to a rough start, and we very much need to raise $250,000 in the next couple of weeks. If you value the journalism you get from Mother Jones, please help us do it with a donation today.

As we wrote over the summer, traffic has been down at Mother Jones and a lot of sites with many people thinking news is less important now that Donald Trump is no longer president. But if you're reading this, you're not one of those people, and we're hoping we can rally support from folks like you who really get why our reporting matters right now. And that's how it's always worked: For 45 years now, a relatively small group of readers (compared to everyone we reach) who pitch in from time to time has allowed Mother Jones to do the type of journalism the moment demands and keep it free for everyone else.

Please pitch in with a donation during our fall fundraising drive if you can. We can't afford to come up short, and there's still a long way to go by November 5.

payment methods

ONE MORE QUICK THING:

Our fall fundraising drive is off to a rough start, and we very much need to raise $250,000 in the next couple of weeks. If you value the journalism you get from Mother Jones, please help us do it with a donation today.

As we wrote over the summer, traffic has been down at Mother Jones and a lot of sites with many people thinking news is less important now that Donald Trump is no longer president. But if you're reading this, you're not one of those people, and we're hoping we can rally support from folks like you who really get why our reporting matters right now. And that's how it's always worked: For 45 years now, a relatively small group of readers (compared to everyone we reach) who pitch in from time to time has allowed Mother Jones to do the type of journalism the moment demands and keep it free for everyone else.

Please pitch in with a donation during our fall fundraising drive if you can. We can't afford to come up short, and there's still a long way to go by November 5.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate