What is Money and how does it work



08/06/2023 - 23:42

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Commonly used words are often the most difficult to define: money is one of them, let’s see what it is and how it works from all points of view

What is Money and how does it work

Money is a fascinating and essential aspect of our everyday lives.

It serves as a medium of exchange, unit of account, and store of value, allowing us to buy goods and services, measure their worth, and preserve our wealth for future use. However, understanding the intricacies of money, its historical evolution, and the various forms it takes can be quite complex.

In this comprehensive guide, we will explore the concept of money, its functions and types, and how it works in the modern world. By the end of this article, you will have a better understanding of the significance of money and its role in the global economy.

The Functions of Money

Money serves three primary functions:

1. Medium of Exchange
A medium of exchange is an item widely accepted as payment for goods and services. It simplifies transactions by eliminating the need for barter, where people directly exchange one good for another. Money enables more efficient trade by providing a common, universally accepted means of payment.

2. Unit of Account
Money serves as a unit of account, a consistent means of measuring the value of goods and services. By expressing prices in terms of money, we can easily compare the relative worth of different items and make informed decisions about what to buy and sell.

3. Store of Value
As a store of value, money allows individuals to preserve their wealth for future use. This function is essential for long-term planning, enabling people to save for investments, emergencies, or retirement. However, the effectiveness of money as a store of value can be influenced by factors such as inflation and economic stability.

Types of Money

There are two primary types of money: commodity money and fiat money.

Commodity Money
Commodity money is money that has intrinsic value due to its non-monetary use or the value of the material from which it is made. Examples include gold, silver, and even items like tobacco or cattle in some societies. Commodity money has the advantage of being tied to a tangible asset, making it less susceptible to rapid fluctuations in value.

Fiat Money
Fiat money, on the other hand, has no intrinsic value and derives its worth from the trust and confidence placed in it by the issuing authority, usually a government. Examples include paper currency, coins, and digital currency in our bank accounts. While fiat money can be more easily controlled and manipulated by central banks, it can also be susceptible to inflation and loss of value if not managed responsibly.

The Evolution of Money
Money has undergone significant changes throughout history, evolving from barter systems to the modern forms of digital and cryptocurrency we see today.

Barter System
Before the development of money, people relied on bartering to exchange goods and services. This system was inefficient and time-consuming, as it required finding someone with the desired item who was also willing to accept the offered good in return.

Commodity Money
As societies grew more complex, commodity money emerged as a more efficient means of exchange. Items such as gold, silver, or even livestock served as currency because they were widely desired, durable, portable, and easily stored. These commodities facilitated trade and laid the foundation for the development of more advanced forms of money.

Gold Standard
The gold standard was a monetary system in which the value of a country’s currency was directly linked to a specific amount of gold. While this system provided a stable foundation for international trade, it constrained economic growth by limiting the money supply to the available gold reserves.

Fiat Money
In the 20th century, the gold standard was gradually abandoned in favor of fiat money, which is not backed by a physical commodity but by the stability of the issuing government. This transition allowed central banks to exert greater control over the money supply and respond more flexibly to economic fluctuations.

Digital Money and Cryptocurrency
The advent of the internet and digital technology has led to the emergence of digital money and cryptocurrencies, such as Bitcoin. These forms of money exist solely in electronic form and have the potential to revolutionize the way we conduct transactions and manage our finances.

Measuring Money

Central banks and economists measure the money supply to gauge economic activity and inform monetary policy decisions. There are several ways to measure the money supply, with the most commonly used definitions being M1 and M2.

M1 is the narrowest measure of the money supply, consisting of currency in circulation, traveler’s checks, and checkable deposits. These assets are highly liquid and can be readily used for transactions.

M2 is a broader measure of the money supply, encompassing M1 as well as less liquid assets such as savings accounts, small time deposits, and certain types of money market funds. Although not as easily accessible as M1, these assets can still be converted into cash with relative ease.

How Money is Created

Central banks, like the Federal Reserve in the United States, play a crucial role in creating and managing the money supply.

Printing Money
One way central banks create money is by printing new currency. However, this method is limited by the need to maintain the value and stability of the currency. Excessive printing can lead to inflation and a loss of confidence in the currency.

Open Market Operations
Another way central banks create money is through open market operations, which involve the purchase or sale of government securities. By buying securities, central banks inject money into the economy, whereas selling securities withdraws money from circulation.

Lowering Interest Rates
Central banks can also influence the money supply by adjusting interest rates. Lower interest rates encourage borrowing and spending, increasing the amount of money circulating in the economy.

The Role of Banks in Money Creation
Commercial banks play a vital role in the creation and circulation of money through the process of fractional reserve banking.

Fractional Reserve Banking
In a fractional reserve banking system, banks are only required to hold a fraction of their deposits as reserves, while the rest can be lent out to borrowers. This process effectively creates new money, as the loans become new deposits in the banking system.

The Money Multiplier
The money multiplier is the factor by which an initial deposit can be multiplied through the process of lending and re-lending in a fractional reserve banking system. This multiplier effect increases the overall money supply and can have significant implications for economic activity and monetary policy.

Inflation and Money
Inflation is the general increase in prices over time, and it can have a significant impact on the value of money. When the money supply grows faster than the economy’s production capacity, it can lead to inflation, reducing the purchasing power of money.

Central Bank’s Role in Controlling Inflation
Central banks aim to maintain price stability by managing the money supply and controlling inflation. They typically target a specific inflation rate and adjust their monetary policy accordingly, using tools such as open market operations and interest rate adjustments.

The Future of Money

As technology continues to advance and reshape our world, the future of money is likely to change as well. Some potential developments include:

Digital Currencies
Digital currencies, such as cryptocurrencies like Bitcoin, offer a decentralized alternative to traditional fiat money. They rely on blockchain technology to enable secure, transparent transactions and have the potential to revolutionize the way we conduct business and manage our finances.

Central Bank Digital Currencies (CBDCs)
Central banks around the world are exploring the possibility of issuing their own digital currencies, known as Central Bank Digital Currencies (CBDCs). These currencies would combine the benefits of digital technology with the stability and backing of a central authority.

The Cashless Society
As electronic payment methods become increasingly prevalent and accessible, the need for physical cash may diminish. A cashless society could offer numerous benefits, such as reduced crime and increased efficiency, but also raises concerns about privacy and financial inclusion.


Understanding the concept of money, its functions, types, and the mechanisms that govern its creation and circulation is crucial to comprehending the dynamics of the global economy. While money has evolved significantly throughout history, its essential role in facilitating trade and preserving wealth remains constant.

As technology continues to advance, the future of money promises to be an exciting and ever-changing landscape, with new forms and methods of exchange emerging to meet the needs of an increasingly interconnected world.

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