MMT: the magic money tree bears fruit

“Modern Monetary Theory” is becoming modern monetary practice. But how far will policymakers go in this radical experiment, and at what cost? Stuart Watkins reports.

People who go through near-death experiences often report that their lives “flash before their eyes” – a rapid review of their life passes before their mind’s eye. A plausible theory to explain why this happens is that the brain, in an effort to prevent its own death, urgently reviews everything in its memory to see if there’s anything there that might help. 

Something similar seems to happen at the societal level. When a crisis threatens life as we know it, we seem obliged to review every discarded idea that might help, even the crackpot ones. Perhaps basic income really is the answer – or a jobs guarantee. Perhaps Marx was right. There is, as H. L. Mencken said, always a simple solution at hand to every human problem: “neat, plausible, and wrong”.

Changing how we think about money

Take Modern Monetary Theory (MMT). For years, a growing movement of enthusiasts, hailing mainly from the left of the political spectrum, have been urging us to change the way we think about money. To the old-fashioned way of thinking, money is a social phenomenon, arising spontaneously as a matter of necessity to grease the wheels of trade. Governments, having no money of their own, levy taxes and in return protect property rights, organise the defence of the realm, and so on. What that “and so on” might entail is strictly limited by how much money the government can collect in taxes, or borrow. 

This, say MMTers, is all wrong. For them, money is and always has been a creature of the state. Once upon a time, the nascent state was faced with the complex problem of how to provide for its troops and keep them on the road. It came upon an ingenious solution. It paid its foot soldiers in state-issued tokens, then demanded taxes from the general populace, accepting only that token as payment. In this way, the state forced the populace to figure out what it was the soldiers needed and wanted and provide it in exchange for the tokens – in effect, the populace ceased to work for themselves and started working for the state. 

It’s a simplified origin myth and the reality was no doubt more complex, but the story brings out the fundamental point: money is an invention of the state and the state doesn’t need to raise revenue by levying taxes. It mints the money tokens itself, then in effect buys whatever it is that it needs to meet its goals. The question of whether the state has enough money to do what it wants, or whether it can pay its debts, just doesn’t arise. 

The state always has the money it needs and can therefore pursue social objectives such as full employment without worrying about whether it can afford it. (The theory, then, only applies to states such as Britain and the US, which issue their own currency and debt denominated in that currency.) Should the state issue more money than there are resources, then the result will be inflation, but that can always be reversed by cutting spending and raising taxes, thereby taking money back out of circulation again. Simple. 

MMT arrives by the back door

But wrong? We may be about to find out. Governments and central banks are “backing into MMT” – not so much by embracing the new theory, more by “the sheer necessity of swiftly repairing the economic damage” from the virus, say Bluford Putnam and Erik Norland, economists at CME Group. When the government funds its spending by issuing debt that the central bank buys, as the UK government has, for example, then what we are seeing is in effect MMT in action. 

Governments are pumping large amounts of money into economies to stop economic activity falling more than is necessary for the sake of public health. They are not worrying about deficits (at least for now). And the limits of spending and central-bank debt purchases are not being guided by considerations of affordability, since the central bank can always “print” more, but by whether too much inflation will be created. 

As the governor of the Bank of England, Andrew Bailey, recently pointed out, the UK government would have run out of money in March if it hadn’t been for the central bank’s support. It bought £200bn of government bonds to ensure the government had sufficient money to get through the coronavirus crisis. Bailey, though, worries about the long-term effects of this, particularly about the growing perception that the bank has engaged in monetary financing of the government’s deficit. 

In more normal times, this would be seen as an act of recklessness severe enough to bring Zimbabwe and the Weimar Republic to mind. Bailey has warned that such measures mustn’t become a permanent feature of the economy. Yet “nothing is so permanent as a temporary government programme”, as Milton Friedman warned and recent history confirms. (For MMTers, nominally independent central banks are effectively an arm of the government, another thing that they get basically right.) 

Quantitative easing (QE) and ultra-low interest rates, too, were seen as radical experiments that would see us through and get us back to normal and yet more than a decade on, the experiments continue. Governments and central banks around the world are now in effect running MMT experiments, as Putnam and Norland point out: “Governments are trying to provide support for wage earners and loans and grants to corporations. Central banks are not only expanding their loans to banks and buying more government bonds, they are also going beyond their traditional limits and are now lending to corporations and local government authorities”. True, these programmes are “largely aimed at getting individuals and businesses through the worst of the pandemic and to put a floor under the economy”, but “new programmes to address the pace at which the economy can rebuild” are forthcoming. “More spending is on the horizon.”

The dangers lurking in the long term  

True believers think that worriers like Bailey should relax and should indeed make MMT a permanent feature of the economy. And as Edward Hadas of Breakingviews points out in a review of a new book on the subject, Stephanie Kelton’s The Deficit Myth, the argument is a powerful one, up to a point. It is relatively clear that a government that issues money cannot run out of the stuff and the financial crisis suggests to some that large fiscal deficits can revive growth without pumping up inflation. But beyond that point is where the idea looks likely to get mugged by reality.

The most obvious problem concerns inflation...

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