Monday, December 1, 2008

"While I recognise the theoretical possibility that there could be something to the ‘keeping (some of) your power dry’ argument"

Willem Buiter posts again on the Liquidity Trap problem:

"The (formerly) advanced industrial countries are all in or headed for the liquidity trap ‘lite’. This is the situation where the short-term risk-free nominal interest rate cannot fall any further. A ‘heavy’ or ‘deep’ liquidity trap occurs when nominal risk-free rates at all maturities are at their lower bound(s).

A liquidity trap ‘lite’ may occur even when short-term rates above zero. It will certainly occur when the short-term nominal interest rate falls to zero. Unless the monetary authorities are willing and able to tax currency holdings, the zero nominal interest rate rate on bank notes sets a floor for all short-term nominal interest rates. I have not seen too many central bankers perusing the works of Silvio Gesell, so for the time being, I will treat a zero short risk-free nominal interest rate as the effective floor for the risk-free nominal interest rate.

If zero is the floor, there is no reason not to go there immediately. The recession in the US, the UK, the Eurozone, Japan and the rest of Europe is, with probability verging on certainty, going to be so deep and so prolonged, that the zero lower bound will be reached even by the most anal-retentive gradualist central bank before the middle of 2009. So why not get it over with in December 2008 and possibly do some good in the mean time? The required cuts in the official policy rate would be trivial in Japan (30 basis points) and in the US (100 basis points - assuming the 35 basis points penalty on bank reserves is abolished). For the UK, a mere 300 basis points cut and for the Euro Area a 325 basis points cut would anchor the official policy rate at the floor (again assuming the 25, respectively 50, basis points reserve penalties of the Bank of England and the ECB are eliminated).

In all likelihood, cutting the central banks’ official policy rates to zero will not provide a major stimulus to financial intermediation and this to aggregate demand. But even if it doesn’t help, it certainly won’t hurt.

Dr. Lorenzo Bini Smaghi, Executive Board member of the ECB disagrees. He wants to keep some of the ECB’s interest rate powder dry. He obviously has watched “They died with their boots on”, or some other movie of the battle of Little Big Horn in which George Armstrong Custer and his command were outgunned by the Cheyenne, the Lakota and the Arapaho.

The analogy with not firing your last bullet except in extremis is, however, not convincing. A cut in interest rates does not exhaust its effect on economic activity as soon as the cut is implemented. A short-term, temporary cut has a smaller effect than a long-term, more permanent cut. Cutting earlier means that the cumulative effect on activity at any given future date is likely to be larger. In George Armstrong Custer terms, once you pull the trigger, the gun keeps in firing.

It is possible that there are complex psychological mechanisms (of the kind most economists and central bankers don’t understand) that may cause an interest rate cut of a given magnitude to produce a greater cumulative effect if it is administered at just the right moment - say when an inflationary or deflationary bubble is most likely to be punctured or when fears, phobias and bandwagon effects can be influenced by some highly visible, even if largely symbolic, policy action.

While I recognise the theoretical possibility that there could be something to the ‘keeping (some of) your power dry’ argument, I have never seen any empirical evidence that supports it, or a rigorous analytical model that lays out the precise mechanism. The argument should therefore be dismissed as a constraint on actual planned rate cuts."

Here's my comment:


I’ve often wondered if the public officials who use phrases like “keep your powder dry”,speak like this at home, or whether it’s an affliction that one gets when taking on an air of pomposity in public life.

“Are you coming to bed dear?”

“Not tonight love. I need to keep my powder dry. Sorry.”

Maybe it has something to do with the way they speak, but I’m having a hard time taking bankers seriously. Sec. Paulson, for example, has forever tainted the word “deploy” for me. Now, when I hear the word “stigma”, I immediately assume that it has something to do with banking, although I’m not quite sure what.

I’m sorry. I apologize to everyone for posting. I’d liked to say more, but, well, I’m unfortunately out of powder.

Sadly, I don’t think Mr. Buiter’s advice will be taken.

Posted by: Don the libertarian Democrat | December 2nd, 2008 at 3:14 am |

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