The not-enoughers — a group that includes yours truly — have argued all along that the clear and present danger is Japanification rather than Hellenization. That is, they have warned that inadequate fiscal stimulus and a premature turn to austerity could lead to a lost decade or more of economic depression, that the Fed should be doing even more to boost the economy, that deflation, not inflation, was the great risk facing the Western world.

To say the obvious, none of the predictions and warnings of the too-muchers have come to pass. America never experienced a Greek-type crisis of soaring borrowing costs. In fact, even within Europe the debt crisis largely faded away once the European Central Bank began doing its job as lender of last resort. Meanwhile, inflation has stayed low.

However, while the not-enoughers were right to dismiss warnings about interest rates and inflation, our concerns about actual deflation haven’t yet come to pass. This has provoked a fair bit of rethinking about the inflation process (if there has been any rethinking on the other side of this argument, I haven’t seen it), but not-enoughers continue to worry about the risks of a Japan-type quasi-permanent slump.

Which brings me to Europe’s woes.

On the whole, the too-muchers have had much more influence in Europe than in the United States, while the not-enoughers have had no influence at all. European officials eagerly embraced now-discredited doctrines that allegedly justified fiscal austerity even in depressed economies (although America has de facto done a lot of austerity, too, thanks to the sequester and cuts at the state and local level). And the European Central Bank, or E.C.B., not only failed to match the Fed’s asset purchases, it actually raised interest rates back in 2011 to head off the imaginary risk of inflation.

The E.C.B. reversed course when Europe slid back into recession, and, as I’ve already mentioned, under Mario Draghi’s leadership, it did a lot to alleviate the European debt crisis. But this wasn’t enough. The European economy did start growing again last year, but not enough to make more than a small dent in the unemployment rate.