The Simple Question We Rarely Ask: What Is Money?

I feel almost a little silly asking such a basic question on a forum like this. It sounds too simple, perhaps even embarrassingly obvious. Yet I have often felt that, despite being educated and earning well, many of us have surprisingly little understanding of what money actually is. Money is often treated either as a taboo subject or as something surrounded by misconceptions, moral judgments and half-understood ideas. So, before we get into saving or investing, I thought it might be worth stepping back and asking the most basic question of all: what exactly is money?

About the author: Manmohan Sethumadhavan is a freelancer, investor, and personal finance enthusiast “in search of the absolute truth.” You can follow Manu on Twitter @ManuTsr. He is the author of the popular Revised Capital Gains Taxation Rules Ready Reckoner for FY 2025-2026.

Think about human beings before there was money. Long before banks, currencies, coins, and even formal markets, small groups of human beings tried to survive together. Our primate ancestors lived in groups, shared food, protected one another and depended on cooperation. Later, as human communities became larger and more organised, people hunted, gathered, grew food, made tools and divided their work among themselves. Life depended greatly on helping one another because no individual could easily produce everything needed for survival.

Then something very interesting happened. As groups became larger and people became more specialised, the relationship between work and consumption became less direct. One person might grow grain, another might make pots, another might hunt, another might build houses. People naturally had more of some things than they immediately needed and lacked things that others possessed. Exchange therefore became useful.

The obvious solution was to exchange one thing for another. I give you some grain, and you give me fish. I make a pot, and you give me some vegetables. This is barter, and it sounds wonderfully simple until we actually try it.

Suppose I have rice but want a fishing net. I have to find somebody who has a fishing net and, at exactly the same time, wants rice. Even then, we must agree on how much rice one net is worth. If the fisherman does not need rice but wants a goat, I need to find somebody who has a goat and wants rice, and so on. As societies grew larger and work became more specialised, direct barter became an increasingly inconvenient way to organise exchange.

Perhaps some smart guy eventually realised that there was a much easier arrangement. Instead of trying to exchange every product directly for every other product, why not have something that everybody is willing to accept? Then I could sell my rice for that thing and later use it to buy the fishing net. I would no longer have to find a person who simultaneously had what I wanted and wanted what I had.

That simple idea points towards money. The actual historical story, however, is more complicated than the story we usually hear. Money did not suddenly appear one day because primitive people became tired of barter. Evidence shows sophisticated systems for recording goods, obligations, and transactions thousands of years ago, long before coins became common. Some of the earliest written records from Mesopotamia, dating to around 3300 BC, were essentially records of economic activity. Ancient societies used weights, measures, commodities, credit and accounting arrangements in different combinations. Coinage came much later.

This matters because it changes how we should think about money. Money is not merely a physical object someone decided to use to buy things. At a deeper level, money is a system for tracking value and transferring purchasing power.

Imagine that I work for you for a month. I provide you with something valuable: my labour, knowledge, skill, or time. In return, you give me money. The piece of paper, metal coin or number in my bank account is not the work itself. The work has already happened. What I now possess is a generally accepted claim that allows me to obtain something of value from someone else.

In that sense, money can be thought of as a record of economic value people have created. It carries my purchasing power forward. I may have worked yesterday, but I can use the money tomorrow to buy food, a shirt, a computer or somebody else’s labour. Money allows the result of one person’s work to be exchanged for the work or output of another person.

This is also why money itself is not evil. We often speak about money as though it were responsible for greed, corruption, inequality, and many other human problems. But money is an instrument. A knife can cut vegetables or hurt somebody. The existence of the knife does not tell us which one will happen. Likewise, people can use money wisely or badly. The moral quality belongs to the people and institutions using money, not to the concept of money itself.

Money performs a remarkably important function in a large society. It gives us a common language for economic value. Instead of saying that one bicycle is worth five bags of rice, which are worth two goats, which are worth several days of labour, we can express prices in one common unit. That unit allows millions of unrelated transactions to take place without everyone having to negotiate a separate barter relationship. Economists generally describe money as serving as a medium of exchange, a unit in which prices are expressed, and a store of value or purchasing power.

And yet, most educated people have never actually stopped to ask a very simple question: where is my money? Can you see your money?

Suppose you have ₹1,00,000 in your bank account. You may have a few notes in your wallet, but where is the rest? It is not sitting in a little box with your name on it. You may not even visit a bank branch for months. Yet you can use that ₹1,00,000 to buy something, transfer it to somebody else, pay a bill or withdraw cash.

What you see on your banking application is simply a record: a number showing the amount the bank owes you as a deposit. That number is not merely a representation of money in the way a photograph represents a person. The bank deposit itself is money because we can use it directly for payment and because society accepts it as a means of exchange. Modern economies therefore contain enormous amounts of money that exist not as physical notes and coins, but as bank deposits.

But saying “money is just numbers on a screen” can also be misleading. The number matters because the banking system, the legal system, and society recognise it as a claim that can be used to settle transactions. The purchasing power does not come from the pixels on your phone. It comes from the economic system and the trust, institutions and rules that make those numbers usable as money.

This is perhaps the strangest thing about money. We spend a large part of our lives thinking about it, earning it and using it, but very few of us are taught what it actually is. We learn how to add, subtract, multiply and calculate interest. We learn how to earn a salary. We may learn the difference between a cheque and a savings account. But we rarely stop to understand the basic idea behind it all.

Money is ultimately a mechanism that allows value to move between people. I work today, receive money, and use it tomorrow. A farmer produces food, receives money, and uses it to buy a tractor. A doctor provides a service, receives money, and uses it to buy something produced by thousands of other people. A software engineer may be sitting in Bengaluru while buying something produced in another country. The notes and numbers are only the visible layer. Underneath them is an enormous network of human effort, production, exchange, promises and purchasing power.

Once we start looking at money this way, a bank balance stops looking like an abstract number. It becomes something more meaningful: a claim on goods and services produced by other people. And that simple number on a screen is one of the most powerful inventions in human economic history.

So, the next time you receive, spend, save or transfer money, perhaps look at it a little differently. That number in your bank account, those notes in your wallet, are ultimately a representation of your time, effort, skill and hard work—or of the value someone else has given you in exchange for yours. Money deserves neither worship nor contempt, and there is no need to treat it as a taboo subject. Understand what it is, respect what it represents, and use it consciously. Once we see money for what it really is, we can stop being uncomfortable talking about it and start treating it with the seriousness it deserves.