Inflation – William Mitchell – Modern Monetary Theory

A lower yen is not inflationary once the adjustments are absorbed

December 8, 2025
bill
Inflation, Japan
6 Comments

Last Friday (December 5, 2025), I filmed an extended discussion with my Kyoto University colleague, Professor Fujii about a range of issues concerning the Japanese and Global economy. Once it is edited, the video will be available on YouTube. Fujii-sensei is advising the new Japanese Prime Minister and is the author of the ‘Responsible proactive fiscal policy’ slogan that is summarising the shift within the Japanese government from the Ishiba Cabinet and their austerity mindset to the new Takaichi Cabinet and its desire to introduce renewed fiscal expansion. Among the topics discussed: (a) my conjecture that Japan is caught in a vicious cycle of secular stagnation and requires a large fiscal shock to alter the deflationary mindset that has crippled the economy over several decades; (b) the need for tariffs to protect Japanese industry to advance food security (in the face of major rice shortages during the last year or two); (c) whether Japan should participate in Plaza Accord 2.0 (aka Mar-a-Lago Accord) that Trump is demanding China accept; and (d) policy structures that are necessary to reallocate labour from areas of excess (gig economy) to sectors where shortages and bottlenecks are present (for example, Construction), The latter will be essential if the proposed fiscal expansion is to stimulate production rather than prices. For the purposes of this blog post though, we also discussed the validity of fiscal expansion within the context of the yen. Mainstream economists keep arguing that the expansion is not viable given the depreciation of the yen, which they claim has been inflationary. It is a standard argument and I mentioned it in this recent blog post – Panel of Japanese economists mired in erroneous mainstream constructions and logic (November 27, 2025). I consider that issue more today.

IMF comes late to the party but then cannot quite admit it

In an early blog post – Inflation targeting spells bad fiscal policy (October 15, 2009) – I outlined prior research that I had done on the issue of inflation targetting (IT). In my 2008 book with Joan Muysken – Full Employment abandoned – we provided further analysis on the issue. We found that there was no significant difference in inflation and output dynamics between IT and non-IT nations. This was consistent with the evidence from other studies. Mainstream economists continually claim that IT delivers a range of virtues and central banks that implement IT use interest rates hikes aggressively when there is a hint of price pressure emerging. The latest evidence from an IMF study is that there was no significant difference between IT and non-IT nations in the recent inflationary episode. The research exposes IT for what it is – an article of ideological faith rather than an evidence-based and responsible policy approach.

October 6, 2025
bill
Central banking, Fiscal policy, Inflation, Japan
4 Comments

This will be a series of blog posts where I analysis the period ahead for Japan under the new LDP leadership of Ms Sanae Takaichi. The motivation is that on November 7, 2025, the research group I am working with at Kyoto University will be staging a major event at the Diet (Parliament) Building in Tokyo where I will be one of the keynote speakers. The strategic intent of the event is to outline a new policy agenda to meet the challenges that Japan is facing in the immediate period and the years to come. It is highly likely that the Lab Director here at Kyoto, who promotes and Modern Monetary Theory (MMT) perspective and was formerly the special advisor to the Shinzo Abe, will return to that position under Ms Takaichi. This gives the event increased importance for outlining an Modern Monetary Theory (MMT)-based perspective. Today, I examine the inflation issue in Japan.

August 28, 2025
bill
Central banking, Inflation, Job Guarantee, Labour Force
1 Comment

Central banks around the world tightened interest rates starting late 2021 in some places and there was a systematic period of hikes over the next year or more despite the inflationary pressures mostly showing signs of abatement as a result of factors that were not sensitive to the rising interest rates. In Australia, the RBA started hiking in May 2022 and continued through to November 2022, despite the inflation rate peaking in December 2022. The RBA consistently claimed the labour market was too tight and that the unemployment rate was below the unobservable Non-Accelerating-Rate-of-Unemployment (the so-called NAIRU), which meant to stabilise inflation in their eyes, they had to force unemployment higher. Their logic was not consistent with reality and tens of thousands of workers have lost their jobs over the last few years as a result of deliberate policy choices all for nothing. The inflation outbreak was not the result of excess spending and came down on its own accord as the COVID constraints abated and supply chains worked around Putin and all that. In this blog post I produce some research that further cements that conclusion. There are some technical details but essentially the narrative should be easy to follow.

Inflation continuing to fall in Australia further exposing the incompetence of our central bank

The Australian Bureau of Statistics (ABS) released the latest – Consumer Price Index, Australia – for the June-quarter 2025 today (July 30, 2025). The quarterly data showed that the inflation rate rose by 0.7 points in the quarter but over the 12 months and on an annual basis fell from 2.4 per cent to 2.1 per cent. However, the monthly measure for June 2025 shows annual inflation at 1.9 per cent – which the RBA should be stating is ‘too low’ given the lower bound of their targetting range is 2 per cent. The inflation rate has been within the RBA’s inflation targeting range for four successive quarters and inflationary expectations are falling or benigh. There are no significant wage pressures evident. Using the RBA’s own logic, its policy interest rate should now be cut.

July 10, 2025
bill
Central banking, Inflation, Labour costs, Labour Force
8 Comments

Once again the Reserve Bank of Australia has gone rogue. On Tuesday (July 8, 2025), it held its cash rate target (the interest rate that expresses its monetary policy stance) constant at 3.85 per cent despite all the indicators suggesting that it would cut that target rate. The financial markets are in uproar because they bet on the cut and will have lost money on a myriad of speculative bets based on that expectation. I don’t care about that. But what I care about is that the RBA decision continues to punish low-income mortgage holders and reward high income holders of financial assets, thus continuing one of the most pernicious redistributions of income in the history of our nation. Moreover, the logic expressed by the RBA indicates they really have no idea of what the reality of the situation is and are rather living in a world of fictional economics that reality has exposed to be false. The Treasurer should sack the Governor and her underlings as well as dismissing the Monetary Policy board who have, in my view, failed. Such systematic failures should require the RBA officials to be dismissed.

Australia – the inflation spike was transitory but central bankers hiked rates with only partial information

The Australian Bureau of Statistics (ABS) released the latest CPI data yesterday (June 26, 2025) – Monthly Consumer Price Index Indicator – for May 2025, which showed that the annual underlying inflation rate, which excludes volatile items continues to fall – from 2.4 per cent to 2.1 per cent. The trimmed mean rate (which the RBA monitors as part of the monetary policy deliberations) fell from 2.8 per cent to 2.4 per cent. All the measures that the ABS publish (including or excluding volatile items) are now well within the ABS’s inflation targetting range which is currently 2 to 3 per cent. What is now clear is that this inflationary episode was a transitory phenomenon and did not justify the heavy-handed way the central banks responded to it. On June 8, 2021, the UK Guardian published an Op Ed I wrote about inflation – Price rises should be short-lived – so let’s not resurrect inflation as a bogeyman. In that article, and in several other forums since – written, TV, radio, presentations at events – I articulated the narrative that the inflationary pressures were transitory and would abate without the need for interest rate increases or cut backs in net government spending. In the subsequent months, I received a lot of flack from fellow economists and those out in the Twitter-verse etc who sent me quotes from the likes of Larry Summers and other prominent main stream economists who claimed that interest rates would have to rise and government net spending cut to push up unemployment towards some conception they had of the NAIRU, where inflation would stabilise. I was also told that the emergence of the inflationary pressures signalled the death knell for Modern Monetary Theory (MMT) – the critics apparently had some idea that the pressures were caused by excessive government spending and slack monetary settings which demonstrated in their mind that this was proof that MMT policies were dangerous. The evidence is that this episode was nothing like the 1970s inflation.

Australian inflation rate stable at 2.4 per cent – solid case now for further cuts in the policy interest rate

The Australian Bureau of Statistics (ABS) released the latest – Consumer Price Index, Australia – for the March-quarter 2025 today (April 30, 2025). The data showed that the inflation rate rose by 0.9 points in the quarter but over the 12 months was stable at 2.4 per cent . The inflation rate has been within the RBA’s inflation targeting range for the last 9 months and inflationary expectations are all within the range. There are no significant wage pressures evident. Using the RBA’s own logic, its policy interest rate should now be cut.

Australia – inflation continues to fall and the RBA should cut interest rates

The Australian Bureau of Statistics (ABS) released the latest – Consumer Price Index, Australia – for the December-quarter 2024 today (January 29, 2025). The data showed that the inflation rate rose by just 0.2 points in the quarter and has fallen to 2.4 per cent on an annual basis (down from 2.8 per cent). The inflation rate has been within the RBA’s inflation targeting range for the last 6 months and with inflationary expectations falling, the RBA has no justification left for holding to its elevated interest rates. Using the RBA’s own logic, interest rates should now be cut.

ECB research shows that interest rate hikes push up rents and damage low-income families

I have been arguing throughout this latest inflationary episode that the central bank rate hikes were actually introducing inflationary pressures through a number of channels, the most notable one in the Australian context being the rental component in the Consumer Price Index. The RBA has categorically denied this perversity in their policy approach, and, instead, claimed the rapidly escalating rental inflation was the result of a tight rental market, end of story. Well the rental market is tight, mostly due to the massive cutbacks in government investment in social housing over the last few decades. But the rental hikes followed the RBA rate hikes and the simple reason is that landlords when in a tight market will always pass on the costs of their investment mortgages to the tenants. They weren’t doing that before the rate hikes. A recent ECB research report – How tightening mortgage credit raises rents and increases inequality in the housing market (published January 16, 2025) – provides some robust evidence which supports my argument. That is what this blog post is about.

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