The Retreat of Macroeconomic Policy and The Instability of Moderation

First, DeLong in Project Syndicate:

I would confidently lecture only three short years ago that the days when governments could stand back and let the business cycle wreak havoc were over in the rich world. No such government today, I said, could or would tolerate any prolonged period in which the unemployment rate was kissing 10% and inflation was quiescent without doing something major about it.

I was wrong. That is precisely what is happening.

How did we get here? How can the US have a large political movement – the Tea Party – pushing for the hardest of hard-money policies when there is no hard-money lobby with its wealth on the line? How is it that the unemployed, and those who fear they might be the next wave of unemployed, do not register to vote? Why are politicians not terrified of their displeasure?

Economic questions abound, too. Why are the principles of nominal income determination, which I thought largely settled since 1829, now being questioned? Why is the idea, common to John Maynard Keynes, Milton Friedman, Knut Wicksell, Irving Fisher, and Walter Bagehot alike, that governments must intervene strategically in financial markets to stabilize economy-wide spending now a contested one?

It is now clear that the right-wing opponents to the Obama administration’s policies are not objecting to the use of fiscal measures to stabilize nominal spending. They are, instead, objecting to the very idea that government should try to serve a stabilizing macroeconomic role.

Paul Krugman adds, over at his blog:

[W]atching the failure of policy over the past three years, I find myself believing, more and more, that this failure has deep roots – that we were in some sense doomed to go through this. Specifically, I now suspect that the kind of moderate economic policy regime Brad and I both support – a regime that by and large lets markets work, but in which the government is ready both to rein in excesses and fight slumps – is inherently unstable. It’s something that can last for a generation or so, but not much longer.

By “unstable” I don’t just mean Minsky-type financial instability, although that’s part of it. Equally crucial are the regime’s intellectual and political instability.