UK fiscal policy is about to tighten significantly. The average annual reduction in the cyclically-adjusted budget deficit is projected by the OBR to increase from around ½ per cent of GDP over the past two years to around 1 per cent of GDP over the next two – and the IMF expects the UK to undergo the largest fiscal adjustment of any major advanced economy over the next five years. 30 Taken together, these factors suggest that the “equilibrium” real rate of interest – the rate needed to keep the economy operating at potential and inflation on target – which was sharply negative during the crisis, will continue to be lower than on average in the past. It also seems likely that the equilibrium interest rate will move only slowly back up towards historically more “normal” levels. Everything else equal, that suggests a prospective tightening cycle that, once it starts, will be longer and shallower than those of the past. In other words, we expect Bank Rate increases to be gradual, and limited to a level below past averages. What does that actually mean? The Bank of England is around half a millennium younger than Magna Carta. To put the limited and gradual expectation in historical context, short term interest rates have averaged around 4½ per cent since around the Bank’s inception three centuries ago, 31 the same average as during the pre-crisis period when inflation was at target.
12 This set a medieval financial accelerator in train (about 750 years before Ben Bernanke coined the term) 13 by providing an alternative to storing one’s wealth in silver coin (prone to being whisked away by the King). This led to a reduction in the demand for silver money balances. An increase in money velocity would have followed and with it, all else being equal, price inflation until the transactions demand for silver had risen sufficiently to equal its supply. At the very least, the existence of an alternative store of wealth provided an environment in which money velocity could take off, were it to be nudged in that direction. One possible nudge was the anticipation of the re-coinage of 1204. 14 Re-coinages were good for the King because he benefitted from the seigniorage of the re-minting fee. They were bad for cash holders both because of the re-minting fee and because they had to exchange their clipped coins for what they were actually worth, rather than their face value (a medieval haircut – some of which were appalling). Consequently, there was a strong incentive not to be the one holding the old-issue coins when the music stopped. 15 So to sum up: a fiscal squeeze exacerbated by accelerating inflation, combined with monarchical ambition and incompetence to stretch and then break relations with the barons.