What Central Banks Do
What Central Banks Do
The Rise of the Central Bank
Historically, the role of the central bank has been growing, some may argue, since the establishment of the Bank of England in 1694. It is, however, generally agreed upon that the concept of the modern central bank did not appear until the 20th century, in response to problems in commercial banking systems.
Between 1870 and 1914, when world currencies were pegged to the gold standard (GS), maintaining price stability was a lot easier because the amount of gold available was limited. Consequently, monetary expansion could not occur simply from a political decision to print more money, so inflation was easier to control. The central bank at that time was primarily responsible for maintaining the convertibility of gold into currency; it issued notes based on a country’s reserves of gold.
At the outbreak of World War I, the GS was abandoned, and it became apparent that, in times of crisis, governments facing budget deficits (because it costs money to wage war) and needing greater resources would order the printing of more money. As governments did so, they encountered inflation. After the war, many governments opted to go back to the GS to try to stabilize their economies. With this rose the awareness of the importance of the central bank’s independence from any political party or administration.
During the unsettling times of the Great Depression
and the aftermath of World War II, world governments predominantly favored a return to a central bank dependent on the political decision-making process. This view emerged mostly from the need to establish control over war-shattered economies; furthermore, newly independent nations opted to keep control over all aspects of their countries – a backlash against colonialism. The rise of managed economies in the Eastern Bloc was also responsible for increased government interference in the macro-economy. Eventually, however, the independence of the central bank from the government came back into fashion in Western economies and has prevailed as the optimal way to achieve a liberal and stable economic regime.
How the Central Bank Influences an Economy
A central bank can be said to have two main kinds of functions: (1) macroeconomic when regulating inflation and price stability and (2) microeconomic when functioning as a lender of last resort.
As it is responsible for price stability, the central bank must regulate the level of inflation by controlling money supplies by means of monetary policy. The central bank performs open market transactions (OMO) that either inject the market with liquidity or absorb extra funds, directly affecting the level of inflation. To increase the amount of money in circulation and decrease the interest rate (cost) for borrowing, the central bank can buy government bonds, bills, or other government-issued notes. This buying can, however, also lead to higher inflation.
When it needs to absorb money to reduce inflation, the central bank will sell government bonds on the open market, which increases the interest rate and discourages borrowing. Open market operations are the key means by which a central bank controls inflation, money supply, and prices.
The establishment of central banks as lenders of last resort has pushed the need for their freedom from commercial banking. A commercial bank offers funds to clients on a first-come, first-serve basis. If the commercial bank does not have enough liquidity to meet its clients’ demands (commercial banks typically do not hold reserves equal to the needs of the entire market), the commercial bank can turn to the central bank to
borrow additional funds. This provides the system with stability in an objective way; central banks cannot favor any particular commercial bank. As such, many central banks will hold commercial-bank reserves that are based on a ratio of each commercial bank’s deposits.
Thus, a central bank may require all commercial banks to keep, for example, a 1:10 reserve/deposit ratio. Enforcing a policy of commercial bank reserves functions as another means to control the money supply in the market. Not all central banks, however, require commercial banks to deposit reserves. The United Kingdom, for example, does not, while the United States does.
The rate at which commercial banks and other lending facilities can borrow short-term funds from the central bank is called the discount rate (which is set by the central bank and provides a base for interest rates). It has been argued that, for open market transactions to become more efficient, the discount rate should keep the banks from perpetual borrowing, which would disrupt the market’s money supply and the central bank’s monetary policy.
By borrowing too much, the commercial bank will be circulating more money in the system. The use of the discount rate can be restricted by making it unattractive when used repeatedly.
Today developing economies are faced with issues such as the transition from managed to free market economies. The main concern is often controlling inflation. This can lead to the creation of an independent central bank but can take some time, given that many developing nations want to maintain control over their economies. But government intervention, whether direct or indirect through fiscal policy, can stunt central bank development.
Unfortunately, many developing nations are faced with civil disorder or war, which can force a government to divert funds
away from the development of the economy as a whole. Nonetheless, one factor that seems to be confirmed is that,
for a market economy to develop, a stable currency (whether achieved through a fixed or floating exchange rate)
is needed. However, the central banks in both industrial and emerging economies are dynamic because there
is no guaranteed way to run an economy, regardless of its stage of development.
The Bottom Line
Central banks are responsible for overseeing the monetary system for a nation (or group of nations), along with a wide
range of other responsibilities, from overseeing monetary policy to implementing specific goals such as currency
stability, low inflation, and full employment. The role of the central bank has grown in importance in the last century.
To ensure the stability of a country’s currency, the central bank should be the regulator and authority in the banking
and monetary systems.
Contemporary central banks are government-owned, but separate from their country’s ministry or department of finance. Although the central bank is frequently termed the “government’s bank” because it handles the buying and selling of government bonds
and other instruments, political decisions should not influence central bank operations. Of course, the
nature of the relationship between the central bank and the ruling regime varies from country to country and
continues to evolve with time.
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