Harvard professor Ken Rogoff has not had a good week (Reuters)
For an economist, the five most terrifying words in the English language are: I can't replicate your results. But for economists Carmen Reinhart and Ken Rogoff of Harvard, there are seven even more terrifying ones: I think you made an Excel error.
Listen, mistakes happen. Especially with Excel. But hopefully they don't happen in papers that provide the intellectual edifice for an economic experiment -- austerity -- that has kept millions out of work. Well, too late. As Mike Konczal of the Roosevelt Institute reported, Thomas Herndon, Michael Ash, and Robert Pollin of the University of Massachusetts, Amherst, have found serious problems with Reinhart and Rogoff's austerity-justifying work. That work, which shows that countries with public debt of 90 percent of GDP or more tend to grow slower, omitted data for five of its 19 countries, and used the wrong data for another. The former was, embarrassingly enough, due to an Excel misadventure, and the latter an unrelated issue. If you use all of the (right) numbers, it turns out growth does slow when debt is high, but not nearly as much as Reinhart and Rogoff -- hereafter, R-R -- claimed.
In other words, there is no evidence for anything resembling a growth tipping point when debt hits 90 percent of GDP.
This is the academic's version of the dream where you're naked in public. Except it's not a dream. It's the mortifying reality for R-R, who have admitted that they forgot to drag their Excel formula down five more cells. But it's worse than mortifying for everybody else. It's been a catastrophe. Not that R-R made a pretty galling mistake; rather, that such a flawed paper gave the intellectual ballast to an idea that has failed everywhere it's been tried the past few years. Now, policymakers would have pursued austerity regardless, but R-R gave them a reason (and seemingly a bright red 90 percent of GDP line) to do so sooner. If too much debt is associated with too little growth, then there's no time to lose for slashing deficits.
Those are important words: "associated with". As I pointed out before, the best argument against taking R-R as austerity's gospel truth was it was just a correlation. Of course a ratio tends to increase more when its denominator increases less. That's how fractions work. But it doesn't prove that the rising ratio causes the stagnating denominator. If anything, the causality runs the other way -- lower growth tends to cause higher debt, as tax revenue falls and safety-net spending rises during a slump. Indeed, as you can see below, Arindrajit Dube of the University of Massachusetts, Amherst, found that debt-to-GDP predicts past GDP growth much better than future GDP growth. In other words, higher debt doesn't cause lower growth as much as lower growth causes higher debt.
Of course, this hasn't stopped deficit hawks from touting R-R's work as proof that we must tackle the long-term debt and we must tackle it now. Including, sometimes, R-R themselves. Now, in their paper, R-R are careful to say the relationship between higher debt and lower growth is just that: a relationship. In fact, that's been their defense: they never said it was anything more than a correlation, and that correlation still holds after correcting for all their mistakes, albeit not as strongly.
That's true ... if you only look at what they said in their paper, and ignore what they said about their paper. For example, here's what they said in Bloomberg View back in July 2011:
Our empirical research on the history of financial crises and the relationship between growth and public liabilities supports the view that current debt trajectories are a risk to long-term growth and stability, with many advanced economies already reaching or exceeding the important marker of 90 percent of GDP....
The biggest risk is that debt will accumulate until the overhang weighs on growth....
Those who remain unconvinced that rising debt levels pose a risk to growth should ask themselves why, historically, levels of debt of more than 90 percent of GDP are relatively rare and those exceeding 120 percent are extremely rare (see attached chart 2 for U.S. public debt since 1790). Is it because generations of politicians failed to realize that they could have kept spending without risk? Or, more likely, is it because at some point, even advanced economies hit a ceiling where the pressure of rising borrowing costs forces policy makers to increase tax rates and cut government spending, sometimes precipitously, and sometimes in conjunction with inflation and financial repression (which is also a tax)?
To be fair, R-R do say that they only found that higher debt and lower growth are "associated" and that there's no "bright red line" (even if policymakers interpret it that way) at 90 percent. But they also make it quite clear that they think their correlation is more than just a correlation. They think higher debt causes lower growth, and, after a little throat-clearing, they're not too shy about saying so.
In a series of academic papers with Carmen Reinhart - including, most recently, joint work with Vincent Reinhart ("Debt Overhangs: Past and Present") - we find that very high debt levels of 90% of GDP are a long-term secular drag on economic growth that often lasts for two decades or more....
Of course, there is two-way feedback between debt and growth, but normal recessions last only a year and cannot explain a two-decade period of malaise. The drag on growth is more likely to come from the eventual need for the government to raise taxes, as well as from lower investment spending. So, yes, government spending provides a short-term boost, but there is a trade-off with long-run secular decline.
It's the same pattern: a few caveats, and then a semi-speculative overselling of their results. But their biggest overselling didn't come in the media. It came behind closed doors -- in Congress. Tim Fernholz of Quartz flagged the following passage from Senator Tom Coburn's recent book about the time R-R briefed members of Congress in April 2011, a few months before the debt ceiling debacle:
Johnny Isakson, a Republican from Georgia and always a gentleman, stood up to ask his question: "Do we need to act this year? Is it better to act quickly?"
"Absolutely," Rogoff said. "Not acting moves the risk closer," he explained, because every year of not acting adds another year of debt accumulation. "You have very few levers at this point," he warned us.
Reinhart echoed Conrad's point and explained that countries rarely pass the 90 percent debt-to-GDP tipping point precisely because it is dangerous to let that much debt accumulate. She said, "If it is not risky to hit the 90 percent threshold, we would expect a higher incidence."
R-R whisper "correlation" to other economists, but say "causation" to everyone else. Now, they don't always say it outright -- at least not at first. Rather, they say "this isn't definitely causation ... but come on, what else could it be?" That's been more than enough for the austerians who have been desperate for any kind of justification to forget about unemployment and worry about debt instead.
The boring reality is the relationship between public debt and growth isn't clear. As Justin Fox of Harvard Business Review points out, there simply isn't enough data. Some countries run up big debts fighting wars, and then grow fine. Some countries run up big debts fighting financial crises, and then grow slowly as the private sector deleverages. Some countries run up big debts as a matter of course, and then grow slowly as rising rates crowd out private investment. And even the few data points we do have don't always tell us all that much. Indeed, as Paul Krugman points out, it shouldn't surprise us that the U.S. has averaged negative growth during its high debt years, because most of those years came during the World War II demobilization. In other words, it's impossible to say anything dispositive about debt and growth more broadly.
But that hasn't stopped R-R from trying. This kind of overhyping is why Joe Weisenthal called them "the most dangerous economists in the world" back in 2011. And it's a far more damning error than anything they did with Excel.
Paul faced danger, Ani and Ray faced each other, and Frank faced some career decisions.
This is what happens when you devote two-thirds of a season to scene after scene after scene of Frank and Jordan’s Baby Problems, and Frank Shaking Guys Down, and Look How Fucked Up Ray and Ani Are, and Melancholy Singer in the Dive Bar Yet Again—and then you suddenly realize that with only a couple episodes left you haven’t offered even a rudimentary outline of the central plot.
The winners of the 27th annual National Geographic Traveler Photo Contest have just been announced.
The winners of the 27th annual National Geographic Traveler Photo Contest have just been announced. Winning first prize, Anuar Patjane Floriuk of Tehuacán, Mexico, will receive an eight-day photo expedition for two to Costa Rica and the Panama Canal for a photograph of divers swimming near a humpback whale off the western coast of Mexico. Here, National Geographic has shared all of this year’s winners, gathered from four categories: Travel Portraits, Outdoor Scenes, Sense of Place, and Spontaneous Moments. Captions by the photographers.
What if Joe Biden is going to run for the Democratic nomination after all?
Most Democrats seem ready for Hillary Clinton—or at least appear content with her candidacy. But what about the ones who who were bidin’ for Biden? There are new signs the vice president might consider running for president after all.
Biden has given little indication he was exploring a run: There’s no super PAC, no cultivation of a network of fundraisers or grassroots organizers, few visits to early-primary states. While his boss hasn’t endorsed Clinton—and says he won’t endorse in the primary—many members of the Obama administration have gone to work for Clinton, including some close to Biden.
But Biden also hasn’t given any clear indication that he isn’t running, and a column by Maureen Dowd in Saturday’s New York Times has set off new speculation. One reason Biden didn’t get into the race was that his son Beau was dying of cancer, and the vice president was focused on being with his son. But before he died in May, Dowd reported, Beau Biden tried to get his father to promise to run. Now Joe Biden is considering the idea.
Even when they’re adopted, the children of the wealthy grow up to be just as well-off as their parents.
Lately, it seems that every new study about social mobility further corrodes the story Americans tell themselves about meritocracy; each one provides more evidence that comfortable lives are reserved for the winners of what sociologists call the birth lottery. But, recently, there have been suggestions that the birth lottery’s outcomes can be manipulated even after the fluttering ping-pong balls of inequality have been drawn.
What appears to matter—a lot—is environment, and that’s something that can be controlled. For example, one study out of Harvard found that moving poor families into better neighborhoods greatly increased the chances that children would escape poverty when they grew up.
While it’s well documentedthat the children of the wealthy tend to grow up to be wealthy, researchers are still at work on how and why that happens. Perhaps they grow up to be rich because they genetically inherit certain skills and preferences, such as a tendency to tuck away money into savings. Or perhaps it’s mostly because wealthier parents invest more in their children’s education and help them get well-paid jobs. Is it more nature, or more nurture?
Put simply: Climate change poses the threat of global catastrophe. The planet isn’t just getting hotter, it’s destabilizing. Entire ecosystems are at risk. The future of humanity is at stake.
Scientists warn that extreme weather will get worse and huge swaths of coastal cities will be submerged by ever-more-acidic oceans. All of which raises a question: If climate change continues at this pace, is anywhere going to be safe?
“Switzerland would be a good guess,” said James Hansen, the director of climate science at Columbia University’s Earth Institute. Hansen’s latest climate study warns that climate change is actually happening faster than computer models previously predicted. He and more than a dozen co-authors found that sea levels could rise at least 10 feet in the next 50 years. Slatepoints out that although the study isn’t yet peer-reviewed, Hansen is “known for being alarmist and also right.”
A new EPA rule is designed to withstand legal challenges from Republicans while convincing world leaders to follow suit.
President Obama’s plan to reduce greenhouse-gas emissions is aimed at three major constituencies. First, there’s the plan’s immediate goal: significant decreases in the emissions in the U.S. between now and 2030. Second, the rule arrives as the world gears up for global emissions talks in Paris in December, and American action is seen as necessary to convince other countries to act. And third, Obama views the fight against climate change as an essential part of his legacy, alongside the Affordable Care Act.
“We’re the first generation to feel the impact of climate change, and the last generation that can do something about it,” Obama said at a press conference at the White House on Monday, repeating a line he’s used before. The president emphasized the moral case for reducing emissions throughout the speech, invoking Pope Francis’s call for action, and scolding “cynical” critics who charged his plan would hurt minorities and the poor. “If you care about low-income minority communities, start protecting the air they breathe and stop trying to rob them of their health care.”
For physicians who treat sick children, professional “masks,” such as white coats and detached demeanors, can be both a help and a hindrance.
Nancy Hutton, an associate professor at the medical school of Johns Hopkins University, has one of the hardest jobs in medicine: She specializes in pediatric hospice and palliative care. She sees the sickest children—the ones with severe neurological problems that cause profound developmental delays, or with cancers slowly ravaging their bodies, or severe organ failures.
The worst, though, is when she doesn’t know exactly what’s wrong with a child. “That's even harder,” she said. “When you can't give something a name.”
Sometimes her job is to keep her patients comfortable: helping them keep food down without vomiting or easing their physical pain.
But other times, the child is dying. In those cases, it falls on Hutton to counsel the family.
Two hundred fifty years of slavery. Ninety years of Jim Crow. Sixty years of separate but equal. Thirty-five years of racist housing policy. Until we reckon with our compounding moral debts, America will never be whole.
And if thy brother, a Hebrew man, or a Hebrew woman, be sold unto thee, and serve thee six years; then in the seventh year thou shalt let him go free from thee. And when thou sendest him out free from thee, thou shalt not let him go away empty: thou shalt furnish him liberally out of thy flock, and out of thy floor, and out of thy winepress: of that wherewith the LORD thy God hath blessed thee thou shalt give unto him. And thou shalt remember that thou wast a bondman in the land of Egypt, and the LORD thy God redeemed thee: therefore I command thee this thing today.
— Deuteronomy 15: 12–15
Besides the crime which consists in violating the law, and varying from the right rule of reason, whereby a man so far becomes degenerate, and declares himself to quit the principles of human nature, and to be a noxious creature, there is commonly injury done to some person or other, and some other man receives damage by his transgression: in which case he who hath received any damage, has, besides the right of punishment common to him with other men, a particular right to seek reparation.
And last year, Ypsilanti, Michigan, got a brief flare-up of Internet fame whenGawker reported on a scatological scofflaw who had been repeatedly pooping on local playground slides. A city-council member told MLive the acts were “weird and deliberate.” The manhunt launched a hashtag (#YpsiPooper), and an advertising company put up messages on a billboard it owned over the highway, urging residents to say something if they saw something: "Help us flush the pooper,” “Do your civic doody, report the pooper,” and “Help us catch the poopetrator.” The culprit—a resident of a nearby halfway house—was eventually identified and warned, which seemed to do the trick.
In departing from the religious rhetoric of hope and focusing on the “struggle,” Ta-Nehisi Coates retains the ability to relate to his multiple audiences.
When you review Ta-Nehisi Coates in The Atlantic lots of people email you to tell you what you should have said. In this final installment of the Between the World and Me Book Club, I’m exercising some privilege by responding to some of that feedback.
Many white readers seem confused about my interpretation of the book as two texts in the first of three essays. To put a finer point on that, this book’s primary audience is white people. That is not to say that the book doesn’t also appeal to other readers, but rather, that the literary device of a book written as an open letter describes a racial reality that would only surprise white readers. And Coates goes about filling in those holes with remarkable effect for all readers. For example, Coates’s parental anxieties translate into a brilliantly bracing critique of capitalism that deftly links the history of enslaved labor to everything from global inequality to climate change.