It's OK if you have that Animal Farm feeling. There's been a revolution, but nothing has changed. The Fed still thinks it's first rate hike will come in 2015-ish, and it's still buying $85 billion of bonds a month. This is a true fact. But it undersells the intellectual shift at the Fed. It's gone from mostly thinking about inflation to creating a framework to guide its thinking about inflation and unemployment. And it's done that in just a year. This framework, the Evans Rule, is really just a quasi-NGDP target. It's not exactly the catchiest of phrases, but NGDP, or nominal GDP, targeting would be a real revolution in central banking. In plain English, it's the idea that central banks should target the size of the economy, unadjusted for inflation, and make up for any past over-or-undershooting. In theory, a flexible enough inflation target should mimic an NGDP target, which is why the Evans rule is so historic. It's an incremental step on the way to regime change at the Fed.
That doesn't mean we should expect the Fed to move toward NGDP targeting anytime soon. A risk-averse institution like the Fed will want to see another country try it first--and it might get that chance soon. Incoming Bank of England chief Mark Carney, who currently heads the Bank of Canada, endorsed the idea in a recent speech, and British Treasury officials indicated they might be open to it too--which is significant because the British treasury can unilaterally change its central bank's mandate. It might not be long till NGDP targeting comes to Britain, and from there, the world. If it does, you can be sure that Charles Evans will be figuring out how to make it work here.
The Evans Rule won't save the economy today, but it might tomorrow--if it leads to better central banking. It should. It's a big conceptual step forward. And it's a big conceptual step forward we're going to need if Evan Soltas is right that we're likely to hit the zero bound more often in the future.
Occupy the Fed. Charles Evans is.