It is perhaps not a great surprise then that their central projections tend to cluster in a remarkably narrow range. For example, take the forecasters who were surveyed by Reuters prior to the July MPC meeting last year. At that point there were only two out of 47 who expected interest rates to rise above 5% by now and only one expected them to be below 4.25%. Fast forward to the most recent survey and you will see that none of the 52 expect rates to go above 6% in the next year and only two expect rates to go below 5.5%. To gauge the real range of uncertainty you need to look beyond the central forecasts at the full probability distribution of possible outcomes. The fact that most forecasters agree on the prospect does not mean it is likely to happen. Central banks need to be particularly cautious in putting weight on market expectations and outside forecasts because they are based at least in part on judgements about what we will do. In my view it is sensible for independent forecasters to assume that we will do our job and keep inflation low; but we can’t take comfort from the fact that most external forecasters therefore expect inflation to return and stay around target – its our job to justify their faith and keep their confidence. We must avoid chasing our own tail. Of course, the uncertainty of the future and of the past is a factor in our decisions on interest rates.
Chart: Mainland GDP  1/4  BIS central bankers' speeches  In Norway, growth in the mainland economy picked up through 2017 and the economic outlook improved. Low interest rates, improved competitiveness and an expansionary fiscal stance contributed to the upturn, while oil investment declined at a slower pace after falling sharply for several years. Although the activity level in the Norwegian economy was still somewhat below a normal level, the economy was emerging from the downturn that followed in the wake of the fall in oil prices in 2014. Employment was rising and unemployment was falling. The improvement in the labour market was reflected in a moderate increase in wage growth, which in the preceding years had been restrained by the decline in oil prices, lower capacity utilisation and lower underlying productivity growth. Chart: Consumer prices The depreciation of the krone following the sharp fall in oil prices in 2014 and 2015 gradually fed through to prices and resulted in higher inflation. As this effect faded and the krone appreciated, inflation fell back. Both low imported inflation and weak cost growth in the Norwegian economy contributed to low inflation in 2017. Underlying inflation remains below target, but prospects for higher levels of activity and slightly higher wage growth indicate that inflation will rise in the period ahead. Chart: Debt ratio and interest burden Elevated house price inflation and high debt growth have increased household sector vulnerabilities. After rising faster than household income for several years, house prices began to fall in April 2017.