Economic expansions never go on forever. As the United States' long, slow recovery from the Great Recession stretches past the decade mark, regulators and economists are starting to get a little jumpy.
So where's the bubble that will trigger the next downturn? Housing, like the last time? Corporations up to their gills in debt? Or something else economists haven't even spotted yet?
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Certain indicators already show softening, from capital expenditures to to manufacturing sentiment to residential construction. The question is whether that's just a cooling off — or the beginning of a steeper slide.
A paper published this month by researchers at the International Monetary Fund found that forecasters typically have a hard time predicting serious downturns until they're well underway. But it is possible to spot weaknesses that could snowball into crises if unforeseen events — from a trade war to a real war to a cybersecurity meltdown — knock the economy off its glide path.
On Wednesday, the Federal Reserve will release its first-ever report on the nation's financial stability, which might begin to answer some of these questions. Here are three that Fed watchers already have their eye on.
1. Risky corporate borrowing
Historically, peaks in corporate borrowing have been followed by recessions. In the first quarter of 2018, US companies held a total of $29.6 trillion in debt, more than ever before. More importantly, that figure as a share of the economy is only slightly off its all-time peak in the last quarter of 2017.
For almost the past decade, that debt has been essentially free, as the Federal Reserve kept interest rates near zero to spur growth. Companies used the money to invest in equipment and research, as well as to gobble up other companies and buy back their own stock.
Now, however, interest rates are on the rise again, which could mean that owing lots of money will get more expensive. And it's not just the quantity of the debt outstanding — it's also the quality.
In 2017, according to a recent note by Citibank, $1.6 trillion in new debt issued in the United States went to borrowers with less-than-stellar credit ratings. That's the highest since the years leading up to the 2008 financial crisis, and 2018 is on track to almost match it.
Those leveraged loans have floating interest rates, and risky corporate borrowers could have a hard time making payments if rates rise too fast. That raises the prospect of larger and more widespread bankruptcies if there's an economic shock — and research shows that companies that hold more debt end up laying off more people during recessions.
That's why everyone from Senator Elizabeth Warren to the IMF has raised the alarm about the rise of leveraged lending, likening it to the deterioration in mortgage underwriting standards that preceded the last financial crisis.
"The regulators have not taken preventive action to prevent the buildup of risk," says Richard Berner, who until last year ran the Treasury Department's Office of Financial Research. "So they have to think about what they do when bad things happen."
2. The return of 'buying more house than you can afford'
In the years following the financial crisis, banks became extremely careful about mortgage lending, often to the point where even credit-worthy borrowers had a hard time getting loans. Gradually, those standards have eased up — but it's not clear whether they've gone too far.
One worrying indicator: The average debt-to-income ratio for mortgages insured by the Federal Housing Administration, which makes up about 22% of the housing market, is now at its highest level ever.
Much of the increase is driven by the fact that limited inventory has made housing in general much more expensive, while wages haven't kept up.
"Owning a home and having a high debt-to-income ratio makes a lot of sense if the alternative is renting and having all your income go towards rent," says Ed Golding, a former head of the FHA who is now a fellow at the Urban Institute.
This isn't necessarily a problem as long as borrowers are on a sound financial footing, which lenders now have to confirm by verifying that applicants have sufficient collateral and a stable income stream. So far, those fundamentals continue to look strong, and default rates remain very low.
"If you look at requirements they have from an assets perspective, back in the day, in 2006 and 2007, you could write it on a napkin and get a mortgage loan," says Leo Loomie, senior vice president with the mortgage monitoring and compliance firm Digital Risk. "You cannot do that anymore. There's a ton of data control that wasn't in place 10, 12 years ago."
But there are potential red flags in the FHA's annual report, including a dramatic rise in cash-out refinances that allow homeowners to tap the equity in their homes for money — essentially, the return of homeowners using their properties as ATMs as home values rise. The FHA also voiced concern about the proliferation of down payment assistance programs, which are associated with higher rates of delinquency.
And housing isn't the only reason consumers are taking on debt. Total credit, including student and auto loans, has risen far above its pre-recession peak, according to the Federal Reserve Bank of New York — creating a problem if the job market softens.
"The American public is more leveraged than I would like," says Golding.
3. Unemployment is lower than it's supposed to be
The near 50-year low in the US unemployment rate, which stood at 3.7% in October, is a great thing for many reasons. It's finally starting to fuel wage increases. It creates opportunities for workers who might otherwise be passed over by prospective employers, such as disabled people and those with criminal records. It means that the consequences of being laid off, which happens even in the best economies, might not be as dire.
But if history is any guide, the United States can't sustain the current level of unemployment for very long. Right now, it's well below what economists call the "natural rate" of unemployment, which is a level that accounts for workers moving between jobs.
Typically, the Federal Reserve responds to that mismatch by raising interest rates in order to forestall inflation fueled by wage and price increases, trying to engineer a "soft landing." But very often, the economy instead hits the brakes.
"The simple reality is it is quite difficult to apply just the right amount of policy restraint — fiscal and monetary — to slow the economy enough to see the unemployment rate rise without causing an outright recession," wrote analysts with IHS Markit in a report earlier this year.
That doesn't mean an overcorrection is inevitable — but nobody should be surprised if it happens, despite the Fed's best efforts to avoid it.
"Raising rates too quickly could unnecessarily shorten the economic expansion, while moving too slowly could result in rising inflation and inflation expectations down the road that could be costly to reverse," said Fed Vice Chairman Richard Clarida in a speech on Tuesday.
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