3.2. Demand for Money and Supply of Money

The demand for money tells us what makes people desire a certain amount of money. Since money is required to conduct transactions, the value of transactions will determine the money people will want to keep: the larger is the quantum of transactions to be made, the larger is the quantity of money demanded. Since the quantum of transactions to be made depends on income, it should be clear that a rise in income will lead to rise in demand for money.

The demand for money refers to how much money people desire to hold at any given time. This need arises primarily from the necessity to conduct transactions. As individuals engage in more transactions, influenced by their income levels, they require more money to facilitate these exchanges. Therefore, when people earn more income, their demand for money increases, allowing them to make more purchases.

Imagine you have a small business selling handmade jewelry. When your sales increase, say during the holiday season, you will need more cash on hand to purchase more materials and keep your business running smoothly. This scenario illustrates how rising income increases demand for money – in this case, to support your growing business during peak sales.

Also, when people keep their savings in the form of money rather than putting it in a bank which gives them interest, how much money people keep also depends on rate of interest. Specifically, when interest rates go up, people become less interested in holding money since holding money amounts to holding less of interest-earning deposits, and thus less interest received. Therefore, at higher interest rates, money demanded comes down.

Interest rates play a crucial role in determining how much money people choose to hold. When interest rates are high, saving money in a bank becomes more attractive because it earns interest. Consequently, individuals are less inclined to hold onto large amounts of cash, as that cash does not earn interest. Hence, when interest rates rise, the demand for money tends to decrease, as people prefer to deposit their money to earn returns instead.

Consider a scenario where your friend offers you a choice between keeping your cash at home without earning anything or depositing it in a bank that offers a high interest rate. If the bank offers 5% interest, you might decide to deposit your money instead of keeping it at home, demonstrating how higher interest rates can lead to a reduced demand for cash.

In a modern economy, money comprises cash and bank deposits. Depending on what types of bank deposits are being included, there are many measures of money. These are created by a system comprising two types of institutions: central bank of the economy and the commercial banking system.

The supply of money in an economy includes various forms of currency and bank deposits. It is essential to understand that both central banks and commercial banks interact to control and create money. The central bank issues the currency and sets policies that influence how much money is circulation, while commercial banks create money through deposits and loans. By measuring different types of deposits, economists can assess the overall money supply in the economy.

Think of the central bank as the chef who prepares a main dish, while commercial banks are like the restaurants that serve different versions of that dish to their customers. The chef (central bank) dictates the recipes (currency policies), while restaurants (commercial banks) take those recipes and create various meals (different types of deposits) to satisfy the customers (the public).

Central Bank is a very important institution in a modern economy. Almost every country has one central bank. India got its central bank in 1935. Its name is the 'Reserve Bank of India'. Central bank has several important functions. It issues the currency of the country. It controls money supply of the country through various methods, like bank rate, open market operations, and variations in reserve ratios.

The central bank, such as the Reserve Bank of India, performs several vital functions in an economy. It is responsible for issuing the nation’s currency and regulating the money supply. This is achieved through various methods, which include adjusting the bank rate, conducting open market operations (buying and selling government securities), and changing reserve ratios for commercial banks to ensure that they maintain sufficient funds to meet depositor demands.

Imagine the central bank as a traffic cop directing the flow of traffic on a busy road. By controlling traffic signals (adjusting interest rates or performing market operations), the police manage the flow of cars (money) smoothly through the intersections (the economy) to avoid congestion (money shortages or inflation).

Commercial banks are the other type of institutions which are a part of the money-creating system of the economy. They accept deposits from the public and lend out part of these funds to those who want to borrow. The interest rate paid by the banks to depositors is lower than the rate charged from the borrowers. This difference between these two types of interest rates, called the 'spread', is the profit appropriated by the bank.

Commercial banks play a crucial role in the money-creating system of an economy by accepting deposits and providing loans. They pay depositors a lower interest rate than they charge borrowers, which results in a profit margin for the bank, known as the spread. This differential is essential because it encourages individuals to save money in banks while also providing loans to those in need, driving economic growth.

Think of a commercial bank as a middleman in a marketplace. It takes your surplus apples (deposits) and sells them to those who need apples for a higher price (loans). The bank pays you a fraction of that money as thanks for letting them sell your apples, making a profit from the difference. This is how banks earn their income while still serving the public.

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