Summary: Melbourne Institute inflation rate declines in May; annual rate above 3 per cent as April 2020 fall drops out of calculation.
Despite the RBA’s desire for a higher inflation rate, ostensibly to combat recessions, attempts to accelerate inflation through record-low interest rates have failed to date. The RBA’s stated objective is to achieve an inflation rate of between 2% and 3%, “on average, over time.” Since the GFC, Australia’s inflation rate has been trending lower and lower; the “coronavirus recession” then crushed it in the June quarter of 2020.
The Melbourne Institute’s latest reading of its Inflation Gauge index declined by 0.2% in May, following increases of 0.4% in April and March respectively. On an annual basis, the index rose by 3.3%, accelerating from April’s comparable figure of 2.3%. It is worth noting a good chunk of the annual increase is the result of a 1.5% bounce through June 2020 and July 2020 following a 1.2% drop in April of last year.

The figures were released on the same day as the latest private credit figures. Long-term Commonwealth bond yields increased, ignoring lower yields in US Treasury bond markets overnight. By the close of business, the 10-year ACGB yield had added 2bps to 1.65% while the 20-year yield finished 3bps higher at 2.37%. The 3-year yield remained unchanged at 0.22%.
The Melbourne Institute’s Inflation Gauge is an attempt to replicate the ABS consumer price index (CPI) on a monthly basis. It has turned out to be a reliable leading indicator of the CPI, although there are periods in which the Inflation Gauge and the CPI have diverged for as long as twelve months. On average, the Inflation Gauge’s annual rate tends to overestimate the ABS headline rate by around 0.1% on average.
Central bankers desire a certain level of inflation which is “sufficiently low that it does not materially distort economic decisions in the community” but high enough so it does not constrain “a central bank’s ability to combat recessions.” Hence the recent obsession among central banks, including the RBA, to increase inflation.