Larry Summers is talking about it. So is Paul Krugman. So are other economists. And everyone else is talking about the folks who are talking about it.
The “it” is secular stagnation, which seems to be the New New Thing or the new new normal: a way to describe the persistent state of subpar economic growth plaguing developed nations. Think of it as Japan's lost decade gone global.
The diagnosis? Too much saving and a lack of investment opportunities, according to Harvard University's Summers. And with the funds rate close to zero, the Federal Reserve can't deliver the negative real interest rates he says the economy needs unless it creates higher inflation.
So what do Summers and Krugman advocate for the secular malaise? Why, a cyclical solution: government spending on infrastructure. They want the kinds of things Keynesians typically promote to stabilize the economy during a recession to become a permanent part of the fiscal architecture.
A bit of history is in order. Summers didn't coin the phrase "secular stagnation," which has been gaining traction since he used it in his presentation at the International Monetary Fund Research Conference last month. It traces back to Harvard economist Alvin Hansen, who adopted it in the 1930s to explain why the Great Depression lasted so long. Hansen said that all the ingredients for economic growth - technological innovation, population growth, territorial expansion - had dissipated. The solution was constant deficit spending by the government.
The post-World War II boom discredited Hansen's theories. History may do the same for Summers's.
“Secular stagnation sounds cool and profound,” says economist Arnold Kling of askblog. “It's appealing after five years of slow growth and high unemployment, but no one has defined it or written a peer-reviewed paper on the topic. No one knows what it means.” Even Summers seems to be backing away from his advice from 2008 that fiscal stimulus should be “timely, targeted and temporary.” “Now he's saying we need a permanent stimulus,” Kling says. “He has to rationalize why the economy is doing what it's doing based on what he recommended.” Real secular problems need real secular solutions, not some Keynesian pump-priming dressed up as a long-term remedy. The focus should be on potential growth, or the supply side of the economy.