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Money is an essential part of modern economies, but it is more than just the cash people carry in their wallets or the balance in their bank accounts.
At its core, money can be defined as anything widely accepted as a means of payment for goods and services or as a way to settle debts. Traditionally, this has included coins and banknotes, but in reality, the concept of money encompasses a much broader range of assets, such as bank deposits, digital currencies, and other forms of electronic money. In recent years there have also been different examples of money including cryptocurrencies.
Money serves several critical functions that facilitate economic activity.
Money acts as a medium of exchange, allowing individuals and businesses to trade goods and services without needing a direct barter system, where items of equal value are exchanged directly.
Money is also a unit of account, providing a standard measure of value that makes it easier to compare the prices of different goods and services. This function allows businesses and consumers to make informed financial decisions, set prices, and maintain accurate financial records.
On top of this, money is a way to store money meaning it can be saved and used in the future without losing significant value. This function is crucial for savings and investment, as it enables people to transfer purchasing power from the present to the future and try to build up savings.
Money serves as a means of deferred payment, which allows transactions to be made now with an agreement to pay in the future, such as through loans, mortgages, or credit. This function supports the functioning of credit markets and long-term investments, driving economic growth.
The Broader Definition of Money
While some people think of money in terms of physical banknotes and coins (or a PayPal balance or Apple Pay app), the actual money supply in an economy is much broader. It includes all forms of liquid assets that can easily be converted into cash, such as balances in current and savings accounts, digital payments, and other forms of electronic money.
In modern economies, most money exists digitally and it is created by the banking system when loans are made to consumers and businesses. Therefore, money is not limited to the cash circulating in an economy; it includes all assets that people can use to make transactions or settle debts. Money may never be physically handled in some buying and selling processes.
The Financial Sector
The financial sector is a critical part of the economy. This sector includes a wide range of entities including:
- Commercial banks
- Investment banks
- Building societies
- Insurance companies
- Pension funds
- Stock exchanges.
These institutions play a crucial role in mobilising savings, allocating capital, and managing risk, all of which are essential for economic growth and stability.
One of the primary functions of the financial sector is to bring together savers, who have surplus funds, and borrowers, who need funds for consumption or investment. For instance, commercial banks collect deposits from savers and use these funds to provide loans to businesses and individuals. This process helps businesses invest in new projects, create jobs, and expand, while also providing consumers with access to credit for buying homes, cars, or funding education.
The Role of the Bank of England
The Bank of England is the central bank of the United Kingdom and plays a vital role in maintaining the stability of the financial system. Established in the 1600s, it is one of the oldest central banks in the world. The Bank of England is responsible for several key functions that help keep the UK economy stable and functioning efficiently.
In August 2024, The Bank of England finally cut interest rates to 5% at its August meeting after holding them at 5.25% seven times in a row in an attempt to stimulate the economy and encourage saving.
One of its most important roles is to manage monetary policy. The Bank of England sets the base interest rate, which influences the cost of borrowing and the return on savings throughout the economy.
By adjusting interest rates, the Bank aims to control inflation (the rate at which prices for goods and services rise) and support overall economic growth. For example, if inflation is too high, the Bank may increase interest rates to encourage saving and reduce spending, helping to bring inflation down.
If the economy is slowing down, the Bank might lower interest rates to encourage borrowing and spending, stimulating economic activity.
Another crucial function of the Bank of England is to ensure financial stability. This involves overseeing banks and other financial institutions to ensure they are adequately capitalised and can withstand economic shocks. The Bank acts as a "lender of last resort," providing emergency funding to banks facing temporary liquidity problems to prevent a wider financial crisis. It also conducts regular stress tests on major banks to assess their resilience to potential financial shocks and risks.
In addition, the Bank of England is responsible for issuing banknotes in England and Wales. It ensures that there is enough cash in the economy to meet demand and monitors the quality and authenticity of the currency in circulation. This function helps maintain confidence in the currency and supports its role as a medium of exchange.
The Role of Other Institutions in the Financial Sector

Apart from the Bank of England, several other key institutions play essential roles in the financial sector. Commercial banks, such as HSBC, Barclays, Lloyds, and NatWest, as well as more modern banks like Tide, provide a wide range of financial services to consumers and businesses.
Commercial banks are crucial for funding investments in the economy by lending money to businesses and individuals. For example, they help entrepreneurs start new businesses, homeowners buy properties, and students finance their education.
Building societies are another type of financial institution which are similar to banks, but they are owned by their members (customers). They provide a lot of the same services and building societies help promote home ownership and savings among the public.
Other important institutions include investment banks, which help companies and governments raise capital by underwriting and selling securities like stocks and bonds.
They also provide advice on mergers, acquisitions, and other significant financial transactions. These usually relate to some of the biggest companies in the world and can impact industries.
Insurance companies help individuals and businesses manage risk by providing coverage against various potential losses, such as accidents, health issues, or natural disasters. Pension funds collect and invest money to provide income for people in retirement, playing a crucial role in financial markets by investing large sums in various assets.
Revision Questions
What is an example of a way the Bank of England may stimulate the economy?
What role do commercial banks play in the economy?




