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.
The Islamic State is no mere collection of psychopaths. It is a religious group with carefully considered beliefs, among them that it is a key agent of the coming apocalypse. Here’s what that means for its strategy—and for how to stop it.
What is the Islamic State?
Where did it come from, and what are its intentions? The simplicity of these questions can be deceiving, and few Western leaders seem to know the answers. In December, The New York Times published confidential comments by Major General Michael K. Nagata, the Special Operations commander for the United States in the Middle East, admitting that he had hardly begun figuring out the Islamic State’s appeal. “We have not defeated the idea,” he said. “We do not even understand the idea.” In the past year, President Obama has referred to the Islamic State, variously, as “not Islamic” and as al-Qaeda’s “jayvee team,” statements that reflected confusion about the group, and may have contributed to significant strategic errors.
Defining common cultural literacy for an increasingly diverse nation.
Is the culture war over?
That seems an absurd question. This is an age when Confederate monuments still stand; when white-privilege denialism is surging on social media; when legislators and educators in Arizona and Texas propose banning ethnic studies in public schools and assign textbooks euphemizing the slave trade; when fear of Hispanic and Asian immigrants remains strong enough to prevent immigration reform in Congress; when the simple assertion that #BlackLivesMatter cannot be accepted by all but is instead contested petulantly by many non-blacks as divisive, even discriminatory.
And that’s looking only at race. Add gender, guns, gays, and God to the mix and the culture war seems to be raging along quite nicely.
For centuries, experts have predicted that machines would make workers obsolete. That moment may finally be arriving. Could that be a good thing?
1. Youngstown, U.S.A.
The end of work is still just a futuristic concept for most of the United States, but it is something like a moment in history for Youngstown, Ohio, one its residents can cite with precision: September 19, 1977.
For much of the 20th century, Youngstown’s steel mills delivered such great prosperity that the city was a model of the American dream, boasting a median income and a homeownership rate that were among the nation’s highest. But as manufacturing shifted abroad after World War II, Youngstown steel suffered, and on that gray September afternoon in 1977, Youngstown Sheet and Tube announced the shuttering of its Campbell Works mill. Within five years, the city lost 50,000 jobs and $1.3 billion in manufacturing wages. The effect was so severe that a term was coined to describe the fallout: regional depression.
The Disney CEO and the Oscar-winning actress compare notes on Hollywood.
Midway through Goldie Hawn and Michael Eisner’s on-stage conversation at the Aspen Ideas Festival on Thursday, the former Disney CEO proposed a theory for what made Hawn stand out in Hollywood over the years.
“From my position, the hardest artist to find is a beautiful, funny woman,” he said. “By far. They usually—boy am I going to get in trouble, I know this goes online—but usually, unbelievably beautiful women, you being an exception, are not funny.”
It’s a statement that recalls Christopher Hitchens’s Vanity Fair essay, “Why Aren’t Women Funny?,” which drew big controversy upon its publication in 2007, given the success of women comedians from Lucille Ball to Tina Fey. For her part, Hawn said she agreed that she may owe her sense of humor to her being an “ugly duckling” growing up.
Former Senator Jim Webb is the fifth Democrat to enter the race—and by far the most conservative one.
In a different era’s Democratic Party, Jim Webb might be a serious contender for the presidential nomination. He’s a war hero and former Navy secretary, but he has been an outspoken opponent of recent military interventions. He’s a former senator from Virginia, a purple state. He has a strong populist streak, could appeal to working-class white voters, and might even have crossover appeal from his days as a member of the Reagan administration.
In today’s leftward drifting Democratic Party, however, it’s hard to see Webb—who declared his candidacy Thursday—getting very far. As surprising as Bernie Sanders’s rise in the polls has been, he looks more like the Democratic base than Webb does. The Virginian is progressive on a few major issues, including the military and campaign spending, but he’s far to the center or even right on others: He's against affirmative action, supports gun rights, and is a defender of coal. During the George W. Bush administration, Democrats loved to have him as a foil to the White House. It’s hard to imagine the national electorate will cotton to him in the same way. Webb’s statement essentially saying he had no problem with the Confederate battle flag flying in places like the grounds of the South Carolina capitol may have been the final straw. (At 69, he’s also older than Hillary Clinton, whose age has been a topic of debate, though still younger than Bernie Sanders or Joe Biden.)
“I’m not a vegetarian because I love animals. I’m a vegetarian because I hate plants.”
If the U.S. and Iran conclude a nuclear deal next week, the Islamic Republic stands to gain billions of dollars in eventual sanctions relief. But money isn’t the most important reason the Iranian leadership may be set to shake hands with its historic enemy after 18 months of negotiations.
“One of the most important reasons Iran is signing this deal, in my opinion ... is not actually sanctions,” said Vali Nasr, the dean of Johns Hopkins University’s School of Advanced International Studies. “It’s ISIS. There is actually support for this deal within the Revolutionary Guards in Iran, because their day job is right now fighting ISIS, and they need the United States, particularly in Iraq, on the right side of that fight.”
It wasn’t that bad. But it did help me understand why it made people so angry.
From the Gray Lady, a Modest Dip Proposal. On Microblogging Platform, a Furor. For Peas, a New Use. There are times when The Times out-Timeses itself, and then there was Wednesday. The country's largest newspaper smugly tweeted a link to a recipe for guacamole. One made with peas. "Trust us," it read.
This Independence Day, we should take a page from the Founding Fathers, as well as our ancestors around the world, who imbibed gallons of low-alcohol beer pretty much all the time.
“Beer,” writes the Egyptologist Wolfgang Helck, “could easily have been discovered by chance.” The Babylonians and ancient Egyptians didn’t have microbrewing supplies, but they had grains—grains that would, from time to time, get wet, interact with airborne yeasts, and voila, a brewski was born.
That’s according to Ian Spencer Hornsey, who describes in his book, A History of Beer and Brewing, the long, global history of fermented beverages.
Today, most beer is made either by multinational conglomerates or careful artisans, but originally, all men were (rather careless) home-brewers. The Babylonians would mix crumbled bread with water, add yeast, and just forget about it for a while. One of the Sumerians’ few female deities was Ninkasi, “Lady of the inebriating fruit,” who watched over the “cooked mash” as it cooled.
The retired general and former CIA director holds forth on the Middle East.
ASPEN, Colo.—Retired U.S. Army General David Petraeus pioneered America’s approach to counterinsurgency, led the surge in Iraq, served as director of the CIA for a year, and was sentenced to two years probation for leaking classified information to his mistress. On Wednesday at the Aspen Ideas Festival, he was interviewed by my colleague, Jeffrey Goldberg, about subjects including efforts to stop Iran’s nuclear program; the civil war in Syria; ISIS and the threat it poses to the United States; and the Iraq War.
Here are several noteworthy moments from their conversation, slightly condensed:
The Risks of Attacking Iran
Jeffrey Goldberg: So you believe that, under certain circumstances, President Obama would still use military force against Iran?
David Petraeus: I think he would, actually. I know we’ve had red lines that didn’t turn out to be red lines. ... I think this is a different issue, and I clearly recognize how the administration has sought to show that this is very, very different from other sort of off-the-cuff remarks.
Goldberg: How did the Obama administration stop Israel from attacking Iran? And do you think that if this deal does go south, that Israel would be back in the picture?
Petraeus: I don’t, actually. I think Israel is very cognizant of its limitations. ... The Israelis do not have anything that can crack this deeply buried enrichment site ... and if you cannot do that, you’re not going to set the program back very much. So is it truly worth it, then?
So that’s a huge limitation. It’s also publicly known that we have a 30,000-pound projectile that no one else has, that no one else can even carry. The Massive Ordinance Penetrator was under design for almost six years. ... If necessary, we can take out all these facilities and set them back a few years, depending on your assumptions.
But that’s another roll of the iron dice, as Bismarck used to say, and you never know when those dice are rolled what the outcome is going to be. You don’t know what risks could materialize for those who are in harm’s way.
You don’t know what the response could be by Iran.
There’s always the chance that there will be salvos at Israel, but what if they decide to go at the Gulf states, where we have facilities in every single one.
This is not something to be taken lightly, clearly.
The meaning of the Confederate flag is best discerned in the words of those who bore it.
This afternoon, in announcing her support for removing the Confederate flag from the capitol grounds, South Carolina Governor Nikki Haley asserted that killer Dylann Roof had “a sick and twisted view of the flag” which did not reflect “the people in our state who respect and in many ways revere it.” If the governor meant that very few of the flag’s supporters believe in mass murder, she is surely right. But on the question of whose view of the Confederate Flag is more twisted, she is almost certainly wrong.
Roof’s belief that black life had no purpose beyond subjugation is “sick and twisted” in the exact same manner as the beliefs of those who created the Confederate flag were “sick and twisted.” The Confederate flag is directly tied to the Confederate cause, and the Confederate cause was white supremacy. This claim is not the result of revisionism. It does not require reading between the lines. It is the plain meaning of the words of those who bore the Confederate flag across history. These words must never be forgotten. Over the next few months the word “heritage” will be repeatedly invoked. It would be derelict to not examine the exact contents of that heritage.