Monetary circuit theory

Monetary circuit theory

Monetary circuit theory is a heterodox theory of monetary economics, particularly money creation, often associated with the post-Keynesian school.[1] It holds that money is created endogenously by the banking sector, rather than exogenously by central bank lending; it is a theory of endogenous money. It is also called circuitism and the circulation approach.

Contents

Contrast with mainstream theory

The key distinction from mainstream economic theories of money creation is that circuitism hold that money is created endogenously by the banking sector, rather than exogenously by the government through central bank lending: that is, the economy creates money itself (endogenously), rather than money being provided by some outside agent (exogenously). Circuitism also models banks and other firms separately, rather than combining them into a representative agent as in mainstream neoclassical models.

These theoretical differences lead to a number of different consequences and policy prescriptions; circuitism rejects, inter alia, the money multiplier as a causal agent, arguing that money is created by banks lending, which only then pulls in reserves from the central bank, rather than by re-lending money pushed in by the central bank. It also emphatically rejects the neutrality of money, believing instead that the money supply and its growth or decline are critical to the functioning of the economy.

Circuitist model

Circuitism is easily understood in terms of familiar bank accounts and debit card or credit card transactions: bank deposits are just an entry in a bank account book (not specie – bills and coins), and a purchase subtracts money from the buyer's account with the bank, and adds it to the seller's account with the bank.

Transactions

As with other monetary theories, circuitism distinguishes between hard money – money that is exchangeable at a given rate for some commodity, such as gold – and credit money. Unlike mainstream monetary theory, it considers credit money created by commercial banks as primary (at least in modern economies), rather than derived from central bank money – credit money drives the monetary system. While it does not claim that all money is credit money – historically money has often been a commodity, or exchangeable for such – basic models begin by only considering credit money, adding other types of money later.

In circuitism, a monetary transaction – buying a loaf of bread, in exchange for dollars, for instance – is not a bilateral transaction (between buyer and seller) as in a barter economy, but is rather a tripartite transaction between buyer, seller, and bank. Rather than a buyer handing over a physical good in exchange for their purchase, instead there is a debit to their account at a bank, and a corresponding credit to the seller's account. This is precisely what happens in credit card or debit card transactions, and in the circuitist account, this how all credit money transaction occur.

For example, if one purchases a loaf of bread with fiat money bills, it may appear that one is purchasing the bread in exchange for the commodity of "dollar bills", but circuitism argues that one is instead simply transferring a credit, here with the issuing central bank: as the bills are not backed by anything, they are ultimately just a physical record of a credit with the central bank, not a commodity.

Monetary creation

In circuitism, as in other theories of credit money, credit money is created by a loan being extended. Crucially, this loan need not (in principle) be backed by any central bank money: the money is created from the promise (credit) embodied in the loan, not from the lending or relending of central bank money: credit is prior to reserves.

When the loan is repaid, with interest, the credit money of the loan is destroyed, but reserves (equal to the interest) are created – the profit from the loan.

In practice, commercial banks extend lines of credit to companies – a promise to make a loan. This promise is not considered money for regulatory purposes, and banks need not hold reserves against it, but when the line is tapped (and a loan extended), then bona fide credit money is created, and reserves must be found to match it. In this case, credit money precedes reserves. In other words making loans pulls reserves in (assuming that the regulatory need for bank reserves exists), instead of reserves being pushed out as loans which is assumed by the mainstream model.

The failure of monetary policy during depressions – central banks give money to commercial banks, but the commercial banks do not lend it out – is referred to as "pushing on a string", and is cited by circuitists in favor of their model: credit money is pulled out by loans being extended, not pushed out by central banks printing money and giving it to commercial banks to lend.

History

Circuitism was developed by French and Italian economists after World War II; it was officially presented by Augusto Graziani in (Graziani 1989), following an earlier outline in (Graziani 1984).[2]

The notion and terminology of a money circuit dates at least to 1903, when amateur economist Nicholas Johannsen wrote Der Kreislauf des Geldes und Mechanismus des Sozial-Lebens (The Circuit Theory of Money), under the pseudonym J.J.O. Lahn; (Graziani 2003). In the interwar period, German and Austrian economists studied monetary circuits, under the term Kreislauf, with the term "circuit" being introduced by French economists following this usage. The French circuitists stemmed from the works of Bernard Schmitt (Monnaie, Salaires et Profits, 1966).

Circuitism draws from Chartalism in a number of respects, notably emphasizing the fiat nature of (credit) money, and in distinguishing between government-created (exogenous) money and bank-created (endogenous) credit money.

Modeling difficulties

While the verbal description of circuitism has attracted interest, it has proven difficult to model mathematically. Initial efforts to model the monetary circuit proved problematic, with models exhibiting a number of unexpected and undesired properties – money disappearing immediately, for instance. These problem go by such names as:

  • Losses in Circuit
  • Destruction of Money
  • Dilemma of profit

Australian economist Steve Keen ascribes these difficulties to inappropriate use of general equilibrium methods, hence implicitly static or steady state, while he considers circuitism essentially dynamic, and thus advocates instead the use of the dynamic methods of differential equations or difference equations, producing circuitist models that do not have the shortcomings of earlier attempts. [3], [4], [5],[6]

See also

References

  1. ^ Zazzaro, Alberto, How Heterodox is the Heterodoxy of the Monetary Circuit Theory? The Nature of Money and the Microeconomy of the Circuit, http://ideas.repec.org/p/anc/wpaper/163.html 
  2. ^ Aréna, Richard; Graziani, Augusto; Salvadori, Neri, Money, credit, and the role of the state, p. p. 137 
  3. ^ Keen, Steve. "The Dynamics of the Monetary Circuit". The Political Economy Of Monetary Circuits: Tradition And Change In Post-Keynesian Economics, edited by Jean-François Ponsot and Sergio Rossi (pp. 161-187). Palgrave Macmillan, 08-07-2009. http://www.debtdeflation.com/blogs/wp-content/uploads/papers/9780230_203372_10_cha09.pdf. 
  4. ^ Keen, Steve. "Conservation “Laws” in Econophysics, and the Non-Conservation of Money". www.debunkingeconomics.com, September 29, 2007. http://www.debtdeflation.com/blogs/wp-content/uploads/2007/09/KeenNonConservationMoney.pdf. 
  5. ^ Keen, Steve. "Keynes’s ‘Revolving Fund of Finance’ and Transactions". http://www.debtdeflation.com/blogs/wp-content/uploads/2007/03/KeenKeynesCircuit.pdf. 
  6. ^ Keen, Steve. "Declaring victory at half time". Real-World Economics Review, Issue no. 52, 10 March 2010. http://www.paecon.net/PAEReview/issue52/whole52.pdf. 
  • Graziani, Augusto (1989), Theory of the Monetary Circuit, ISBN 978 0 90216939 5 
  • Graziani, Augusto (2003), The Monetary Theory of Production, ISBN 978 0 52110417 3, paperback 2009, ISDN 978 0 52181211 5. 

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