This conversation is continued from Part 2.
This is not to say they were the only ones. No one claims otherwise.
Tom Palley came to the same conclusion in about 19971. Parguez allegedly came to the conclusion in 19862. Wynne Godley whom MMT borrows their stock-flow consistency framework came to the same conclusion in 1992 and with more detail in 1997. MMT persisted with the stock-flow consistent monetary modelling and claimed it often over the years.
Whilst there are many disputes over the optimal currency area of the Eurozone, as it turns out with no unified fiscal body this was always going to happen. Getting it right is not about being able to say “I told you so,” but about having the credibility to say “here’s what should happen next”. It is about being able to understand the monetary operations within the system. Sovereign currency is the key.
I highlight this to show stock-flow consistent modelling of MMT has its effective use.
Why this is cause for laughter I remain unsure. I shall attribute it to Possum’s infamous snark.
If it is in dispute of Krugman coming to this view with regards to MMT, through his NY Times Column and his Conscience of a Liberal blog he has been engaged multiple times on MMT. Like most he has had many misconceptions but they do seem to be dwindling over time. Krugman has been engaged with the expanding MMT community since at least 2010, many of the discussions can be seen here and here. He has been getting closer over time and his recognition of the import of having your own currency is just the most recent.
This is quite clearly me finally reacting to the snark.
Finally Possum mounts an argument against MMT after much snark.
At the end of the day I was mistaken to reference a nominal price anchor and the Job Guarantee, not because it is bad policy but because I do not believe that is what Possum was referring. I had the JG – which is just a policy prescription based on the understanding of the MMT framework – on my mind and erred.
I do not agree that MMT leads to higher inflation, nor does it fill a required level of demand. As Possum well knows one of the primary goals of MMT beyond a simple description of the economy and its operation is full employment.
So it is at this point Possum has invoked the NAIRU argument. It is at this point we run into definitional problems of what constitutes full employment. Possum is working on the hypothesis that is the NAIRU and MMT is working on frictional unemployment. Under frictional unemployment only the ill and those changing jobs and those that hold no desire to be employed are unemployed and much of that is temporary.
Now for the moment let us just assume that Possum is correct and the NAIRU applies, it involves deliberately keeping people unemployed. It is fairly well understood that sustained unemployment imposes significant costs such as loss of current output, social exclusion & loss of freedom, skill loss, ill health and reduced life expectancy, loss of motivation & confidence, and much more.
This is what Possum prefers by invoking the NAIRU argument – social exclusion, harm and heartache.
In economic terms we call this hysteresis . This only brings us back to Possum’s own argument:
Human behaviour be damned, I have an equation. The NAIRU is an equation. One that prefers idle resources in idle labour (unemployment).
This brings us to inflation. What is inflation?
Inflation is the continuous rise in the price level. That is, the price level has to be rising each period that you observe it. So if the price level or a wage level rises by 10 per cent every month, then you have an inflationary episode. In this case, the inflation rate would be considered stable – a constant rise per period.
Inflation occurs when there is chronic excess demand relative to the real capacity of the economy to produce.
So if we put the unemployed to productive activity (a job) there is little risk of inflation.
This is why I mentioned the Job Guarantee.
1“European Monetary Union: An Old Keynesian Guide to the Issues,” Banco Nazionale del Lavoro Quarterly Review, 201 (June 1997), 147-164
2La monnaie dans la crise (circa 1986)