by Mario Rizzo
Douglas Irwin, a very fine economist at Dartmouth College, has a very puzzling opinion piece in yesterday’s Financial Times. The root of the puzzle is that Irwin seems to accept what I consider the naïve monetarist view, yet calling it by a new name “market monetarism,” that the effectiveness of monetary policy largely revolves around portfolio adjustment effects that are induced by an increase in real balances. (Isn’t this warmed over Pigou, and 1970s monetarism?)
What seems to be new is the “Divisa monetary indexes” which weight the different components of the monetary aggregates by their monetary services. In principle, this is what Milton Friedman talked about in his course “Money: The Demand Side” in the early 1970s. He said then that he thought it would be a good idea to weight the various components of the money supply by their “degrees of moneyness.” He did wonder, as I recall, if these weights would be stable over time.
Now, by this new measure, monetary policy has been tight. In fact, the money supply is no higher today than in early 2008. Continue reading