Money creation

Money creation is the process by which the money supply of a country, or of an economic or monetary region,[note 1] is increased. In most modern economies, most of the money supply is in the form of bank deposits.[1] Central banks monitor the amount of money in the economy by measuring the so-called monetary aggregates.[note 2]

Money supply

The term "money supply" commonly denotes the total, safe, financial assets that households and businesses can use to make payments or to hold as short-term investment.[2] The money supply is measured using the so-called "monetary aggregates", defined in accordance to their respective level of liquidity: In the United States, for example, M0 for currency in circulation; M1 for M0 plus transaction deposits at depository institutions, such as drawing accounts at banks; M2 for M1 plus savings deposits, small-denomination time deposits, and retail money-market mutual fund shares.[2]

The money supply is understood to increase through activities by government authorities,[note 3] by the central bank of the nation,[3] and by commercial banks.[4] The money supply is mostly in the form of bank deposits.[1]

Money creation by government spending

State spending is part of the state's fiscal policy. Deficit spending involves the state spending into the economy more than it receives (in taxes and other payments) within a certain period of time, typically the budget year.[5]

Deficit spending increases the money supply.[6] The extent and the timing of budget deficits is disputed among schools of economic analysis. The mainstream view is that net spending by the public sector is inflationary in so far as it is "financed" by the banking system, including the central bank, and not by the sale of state debt to the public.[7]

The existence itself of budget deficits is generally considered inflationary by mainstream economics,[6] so policies are prescribed for the lowering of the deficit,[note 4] while heterodox economists such as Post-Keynesians treat deficit spending as "simply" a fiscal policy option.[8]

Money creation by the central bank

Central banks

The authority through which monetary policy is conducted is the central bank of the nation. The mandate of a central bank typically includes either one of the three following objectives or a combination of them, in varying order of preference, according to the country or the region: Price stability, i.e. inflation-targeting; the facilitation of maximum employment in the economy; the assurance of moderate, long term, interest rates.[9]

The central bank is the banker of the government[note 5] and provides to the government a range of services at the operational level, such as managing the Treasury's single account, and also acting as its fiscal agent (e.g. by running auctions), its settlement agent, and its bond registrar.[10] Central banks can become insolvent in liabilities on foreign currency.[11]

Central banks operate in practically every nation in the world, with few exceptions.[12] There are some groups of countries, for which, through agreement, a single entity acts as their central bank, such as the organization of states of Central Africa, [note 6] which all have a common central bank, the Bank of Central African States, or monetary unions, such as the Eurozone, whereby nations retain their respective central bank yet submit to the policies of the central entity, the ECB. Central banking institutions are generally independent of the government executive.[13]

The central bank's activities directly affect interest rates, through controlling the base rate, and indirectly affect stock prices, the economy's wealth, and the national currency's exchange rate.[9] Monetarists and some Austrians[note 7] argue that the central bank should control the money supply, through its monetary operations.[note 8][14] Critics of the mainstream view maintain that central-bank operations can affect but not control the money supply.[note 9]

Open-market operations

Open-market operations (OMOs) concern the purchase and sale of securities in the open market by a central bank. OMOs essentially swap one type of financial assets for another; when the central bank buys bonds held by the banks or the private sector, bank reserves increase while bonds held by the banks or the public decrease. Temporary operations are typically used to address reserve needs that are deemed to be transitory in nature, while permanent operations accommodate the longer-term factors driving the expansion of the central bank's balance sheet; such a primary factor is typically the trend of the money-supply growth in the economy. Among the temporary, open-market operations are repurchase agreements (repos) or reverse repos, while permanent ones involve outright purchases or sales of securities.[15] Each open-market operation by the central bank affects its balance sheet.[15]

Monetary policy

Monetary policy is the process by which the monetary authority of a country, typically the central bank (or the currency board), manages the level of short-term interest rates[note 10] and influences the availability and the cost of credit in the economy,[9] as well as overall economic activity.[16]

Central banks conduct monetary policy usually through open market operations. The purchase of debt, and the resulting increase in bank reserves, is called "monetary easing." An extraordinary process of monetary easing is denoted as "quantitative easing", whose intent is to stimulate the economy by increasing liquidity and promoting bank lending.

Money creation by bank lending

Commercial/bank lending expands the amount of bank deposits.[17][note 11] Through fractional-reserve banking, the modern banking system can expand the money supply of a country beyond the amount created or targeted by the central bank, creating most of the broad money in the system.[17] Auditors Standard & Poor's point out that the existence of excess reserves in the system, irrespective of their additional size, does not loosen any reserve constraint on the ability of commercial banks to give loans, since "there was essentially no reserve constraint to begin with": The central bank, the auditors state, "will supply whatever reserves are necessary."[18]

The credit theory of money, initiated by Joseph Schumpeter, asserts the central role of banks as creators and allocators of the money supply, and distinguishes between "productive credit creation" (allowing non-inflationary economic growth even at full employment, in the presence of technological progress) and "unproductive credit creation" (resulting in inflation of either the consumer- or asset-price variety).[19]

Money multiplier

Banks are limited in the total amount they can loan by their capital adequacy ratios, and their required reserve ratios. The required-reserves ratio obliges the bank to keep a minimum, predetermined, percentage of their deposits at an account at the central bank.[20] Mainstream theory holds that, in a system of fractional-reserve banking, where banks ordinarily keep only a fraction of their deposits in reserves, an initial bank loan creates more money than is initially lent out.

The maximum ratio of loans to deposits is the required-reserve ratio , which is determined by the central bank, as simply

where are deposits and reserves. Therefore, the bank's ostensibly limiting ratio is

In practice, if the central bank imposes a required reserve ratio (RRR) of 0.10, then each commercial bank is obliged to keep at least 10% of its total deposits as reserves, i.e. in the account it has at the central bank. In a detailed example: A person deposits $100 in a bank. The bank keeps $10 as reserves in the central bank. To make a profit, the bank loans the remaining $90 to a customer. The customer spends the money and the recipient of the $90 deposits them with their bank. That bank keeps $9 as reserves in the central bank, and then lends the remaining $81. And so on, until the loans become so small that they dissolve to zero. In the end, an amount approximating $1000 is expected to be net added to the money supply.[21]

The ratio of the total money added to the money supply (in this case, $1000) to the total money added originally in the monetary base (in this case, $100) is the money multiplier.[note 12] In this context, the money multiplier[note 13] transmits changes in the monetary base,[note 14] which is the sum of bank reserves and issued currency, into changes in the money supply.[6]

If changes in the monetary base cause a change in the money supply, then

where is the new money supply, is the monetary base, and is the money multiplier. Therefore, the ex post formula for the money multiplier is[6]

The model of bank lending stimulated through central-bank operations (such as "monetary easing") has been rejected by Neo-Keynesian[note 15] and Post-Keynesian analysis[22][23] as well as central banks.[24][25][note 16] The major argument offered by dissident analysis is that any bank balance-sheet expansion (e.g. through a new loan) that leaves the bank short of the required reserves may affect the return it can expect on the loan, because of the extra cost the bank will undertake to return within the ratios limits – but this does not and "will never impede the bank's capacity to give the loan in the first place." Banks first lend and then cover their reserve ratios: The decision whether or not to lend is generally independent of their reserves with the central bank or their deposits from customers; banks are not lending out deposits or reserves, anyway. Banks lend on the basis of lending criteria, such as the status of the customer's business, the loan's prospects, and/or the overall economic situation.[26]

Physical currency

The central bank, or other competent, state authorities (such as the Treasury), are typically empowered to create new, physical currency, i.e. paper notes and coins, in order to meet the needs of commercial banks for cash withdrawals, and to replace worn and/or destroyed currency.[27] The process does not increase the money supply, as such; the term "printing [new] money" is considered a misnomer.[1]

In modern economies, relatively little of the supply of broad money is in physical currency. [note 17]

Monetary financing


"Monetary financing", also "debt monetization", occurs when the country's central bank purchases government debt.[28] It is considered by mainstream analysis to cause inflation, and often hyperinflation.[29] IMF's former chief economist Olivier Blanchard states that

governments do not create money; the central bank does. But with the central bank's cooperation, the government can in effect finance itself by money creation. It can issue bonds and ask the central bank to buy them. The central bank then pays the government with money it creates, and the government in turn uses that money to finance the deficit. This process is called debt monetization.[30]

The description of the process differs in heterodox analysis. Modern chartalists state that

the central bank does not have the option to monetize any of the outstanding government debt or newly issued government debt...[A]s long as the central bank has a mandate to maintain a short-term interest rate target, the size of its purchases and sales of government debt are not discretionary. The central bank's lack of control over the quantity of reserves underscores the impossibility of debt monetization. The central bank is unable to monetize the government debt by purchasing government securities at will because to do so would cause the short-term target rate to fall to zero or to any support rate that it might have in place for excess reserves.[8]


Monetary financing used to be standard monetary policy in many countries, such as Canada or France,[31] while in others it was and still is prohibited. In the Eurozone, Article 123 of the Lisbon Treaty explicitly prohibits the European Central Bank from financing public institutions and state governments.[32] In Japan, the nation's central bank "routinely" purchases approximately 70% of state debt issued each month,[33] and owns, by 2018, approximately 418 quadrillion JP¥ (approx. $3.9quad)[note 18] or 38% of all outstanding government bonds.[34]

In the United States, the 1913 Federal Reserve Act allowed federal banks to purchase short-term securities directly from the Treasury, in order to facilitate its cash-management operations. The Banking Act of 1935 prohibited the central bank from directly purchasing Treasury securities, and permitted their purchase and sale only "in the open market". In 1942, during wartime, Congress amended the Banking Act's provisions to allow purchases of government debt by the federal banks, with the total amount they'd hold "not [to] exceed $5 billion." After the war, the exemption was renewed, with time limitations, until it was allowed to expire in June 1981.[35]

See also


  1. ^ Such as the Eurozone or ECCAS
  2. ^ For example, in the United States, money supply measured as M2 grew from $6.407 trillion in January 2005, to 18.136 trillion in January 2009. See Federal Reserve (2009)
  3. ^ "A [state budget] deficit will lead to a direct rise in the money supply if the...Treasury finances the deficit not by borrowing but by drawing down balances it holds at commercial banks or [the central bank]." From Cacy (1975)
  4. ^ And of state debt
  5. ^ Formally, the Treasury's banker, or the banker of the respective competent authority, depending on the country, e.g. of the Ministry of Finance
  6. ^ Established by Cameroon, Central African Republic, Chad, Republic of Congo, Equatorial Guinea and Gabon
  7. ^ "The chief cause of inflation, Hayek wrote, is governmental control of the money supply." Spencer (1975)
  8. ^ "Empirical studies of relations between the monetary base and the total money supply establish a strong basis for believing that central banks can control the money supply." Meigs (1971)
  9. ^ "Another common misconception is that the central bank determines the quantity of loans and deposits in the economy by controlling the quantity of central bank money. ... Rather than controlling the quantity of reserves, central banks today typically implement monetary policy by setting the price of reserves — that is, interest rates." McLeay (2014)
  10. ^ It has been argued that the central bank of a fiscally and monetarily sovereign nation can actually affect, if not dictate, the whole interest spectrum – above which, of course, as it is argued, adjustments are made for their actual conduct of business by commercial banks and the private sector, in accordance to their assessments, objectives, and preferences. E.g.: "Monetary policy – and there we are increasingly certain – cannot only influence the expectations component, but also the term premium. ... Central banks can lower long-term rates by removing duration risk from the market." Cœuré (2017). Also: "There is no evidence that the central bank has any meaningful control over the...spread between the short-term and the long-term rate of interest [but] it is quite clear that the central bank has full control over the long-term rate of interest. Pilkington (2014)
  11. ^ For an empirical study about bank-created money, see Werner (2014)
  12. ^ The origin of the notion of a money multiplier is discussed i.a. in Hegeland (1970)
  13. ^ The origin of the notion of a money multiplier is discussed i.a. in Hegeland (1970)
  14. ^ Also known as High-Powered Money, HPM
  15. ^ "By increasing the volume of their government securities and loans and by lowering Member Bank legal reserve requirements, the Reserve Banks can encourage an increase in the supply of money and bank deposits. Without taking drastic action, they can encourage but they cannot compel. For in the middle of a deep depression just when we want Reserve policy to be most effective, the Member Banks are likely to be timid about buying new investments or making loans. If the Reserve authorities buy government bonds in the open market and thereby swell bank reserves, the banks will not put these funds to work but will simply hold reserves." Samuelson (1997)
  16. ^ "In reality, neither are [bank] reserves a binding constraint on lending, nor does the central bank fix the amount of reserves that are available. ... Banks first decide how much to lend depending on the profitable lending opportunities available to them — which will, crucially, depend on the interest rate set by the [central bank]." McLeay (2014)
  17. ^ For example, in December 2010, in the United States, of the $8.853 trillion broad money supply (M2), only about 10% (or $915.7 billion) consisted of coins and paper money. See Statistic, FRS
  18. ^ At a $1=¥0.0094 conversion rate


  1. ^ a b c ECB (2017)
  2. ^ a b Money supply, FRS
  3. ^ See "Money multiplier"
  4. ^ ECB (2018)
  5. ^ Cacy (1975)
  6. ^ a b c d Mankiw (2014)
  7. ^ Hein (1981)
  8. ^ a b Mitchell (2008)
  9. ^ a b c Monetary policy, FRS
  10. ^ Pessoa (2012)
  11. ^ Buiter (2008)
  12. ^ List of central banks
  13. ^ Cœuré (2017)
  14. ^ Jahan (2014)
  15. ^ a b Open-market operations, FRS
  16. ^ IMF (2017)
  17. ^ a b McLeay (2014)
  18. ^ S&P (2013)
  19. ^ Schumpeter (1996)
  20. ^ Many countries in the world, including major economic powers, such as Canada or New Zealand, do not impose minimum reserves on banks. This does not allow banks to give out loans without limit, since there is always, aside from other considerations, the capital adequacy ratio.
  21. ^ Mitchell (2009)
  22. ^ Kelton (1998)
  23. ^ Mitchell (2009)
  24. ^ Tucker (2007)
  25. ^ Disyatat (2010)
  26. ^ Wray (2000)
  27. ^ Mankiw (2012)
  28. ^ Mishkin (2011)
  29. ^ Elmendorf (1998)
  30. ^ Blanchard (2012)
  31. ^ Ryan-Collins (2015)
  32. ^ Fiscal policies, ECB
  33. ^ Evans-Pritchard (2013)
  34. ^ Gov't Bonds, Bank of Japan
  35. ^ Garbade (2014)


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