What is Modern Money?

A modern money system, as that term is applied in Modern Monetary Theory, typically has three key features. Two of these features are always present. The third is optional but normally should be in place for the full benefits of modern money to be enjoyed:

1. The currency is a public monopoly. Government issues the currency and is the only entity allowed to do so.

2. The currency is nonconvertible. It is a fiat currency. The government does not promise to convert its currency into a precious metal or some other commodity at a set price.

3. The exchange rate is allowed to float. The government does not promise to maintain a fixed exchange rate with any foreign currency. Instead, the exchange rate is ‘flexible’ or ‘floating’. As already mentioned, this feature is usually operative, but not always.

Taking these three features together, we can say that modern money normally involves a ‘flexible-exchange-rate nonconvertible currency’, or ‘flex-rate currency’ for short.

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Taxes, Demand and the Importance Or Otherwise of Incentive Effects

The Atlantic cites a 65-year study indicating that “tax cuts don’t lead to economic growth” (h/t Tom Hickey). On closer inspection, the study finds more specifically that tax cuts on the wealthy fail to promote economic growth while exacerbating inequality. This should not be surprising to anyone cognizant of basic macroeconomic principles, but to make that point is not to downplay the value of the study. Many have made claims contrary to the findings of the study. If we consider the effects of taxes more generally, our conclusion is likely to be less sweeping. The effects of taxation vary depending on what particular tax we have in mind and the context in which that tax operates. The matter can be considered both in terms of demand effects and so-called incentive effects.

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Exercising Currency Sovereignty Under Self-Imposed Constraints

A currency-issuing government is not revenue constrained. It is always able to purchase whatever is available for sale in its own currency. This simple reality is partially concealed by a variety of contrived hoops through which modern day governments require themselves to jump. There are at least two different ways in which we can see past the confusion. The easiest way is to stand back and look at the big picture, both from the standpoint of logic and by considering the monetary and fiscal authorities as two parts of the same entity, the consolidated government sector. For the eagle eyed, this approach may appear to overlook potentially consequential details in the way governments actually spend. In practice, the monetary authority plays one set of roles, the fiscal authority plays another, and many governments have introduced various restrictions on the way in which the two can interact. The present post begins with a bird’s eye view of government spending, and then turns to a more detailed consideration of the way in which self-imposed constraints and convoluted operational procedures complicate but do not undermine the sovereignty of a currency-issuing government. The case of the US government is taken throughout as an example, but much of the discussion is also broadly applicable to other currency-issuing governments.

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The Accelerator, Profitability, Financial Instability and the State

I’ve been pondering whether it is possible to reconcile a number of notions within the same economic story about long-run growth and accumulation:

  1. An accelerator-type determination of private investment;
  2. A possible tendency, under laissez-faire capitalism, for profitability to fall as accumulation proceeds;
  3. Capitalism as prone to financial instability;
  4. A state able either to attenuate crisis tendencies or, cajoled by democratic pressure from below, push the system beyond capitalism;
  5. A capitalist state able to “manage”, to a degree, the rate of profit.

It is possibly a tall order. The following is intended as just a rough sketch of what I have in mind. I might go deeper into some aspects of the argument in future posts, as it raises various questions, but think it would be better to catch any glaring faults now before carrying the exercise further.

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Marx’s View of Production in Relation to MMT and Taxes

An effect of being trained in mainstream economics but then encountering alternative approaches is to experience a growing realization — or at least a creeping suspicion — that most of what has been taught is the opposite of the truth. Even when the story told contains some truth, it is likely to have been turned on its head. Thanks to Kalecki and Keynes, for example, it becomes clear that demand (spending) determines supply (income), including in the long run. Spending, in a monetary production economy, must come before production can commence. Thanks to Post Keynesians, it becomes evident that loans create deposits, not the reverse. There could be no deposit prior to the decision to extend the first private or public loan (unless through government spending). Thanks especially to Sraffians, it has been established that profit cannot be a remuneration for (marginal) productive contribution. We can conceptualize profit as unpaid labor (Marx) or due to ownership (Sraffians, Post Keynesians).

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It Doesn’t Have To Be This Way

Most economies around the world have been in the doldrums since the Global Financial Crisis of 2007/8 and the Great Recession that followed. Unemployment in some European nations has been at levels not seen since the Great Depression. Although the situation is not as dire in all nations, economic activity remains well below potential virtually everywhere. The result is needless human suffering.

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Significance of MMT’s Definition of ‘Value of the Currency’

It was suggested in the previous post that the notion of ‘value of the currency’ adopted in Modern Monetary Theory (MMT) seems compatible with Marx’s theoretical framework, provided it is acceptable in that framework to consider a state currency, and not only gold or some other commodity, as “true” money. As was explained in the post, currency value in MMT can be defined as the amount of labor time a worker must perform in order to obtain a unit of the currency. An advantage of this definition, if applied in Marx’s framework, is that it offers an explanation for the value of fiat currency that can be expressed in terms of socially necessary labor time.

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