Evolution and Functions of Money: From Barter System to Bitcoin – Part 1 | Complete UPSC Economy Notes

 

UPSC Economy Notes

Evolution and Functions of Money (Barter → Bitcoin)

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1. Barter System

Definition

Barter system refers to a direct exchange of goods and services without the use of money.

Example:

• A farmer exchanges wheat for clothes with a tailor.

This system existed before the invention of money and was widely used in early economies.

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Key Requirement: Double Coincidence of Wants

The barter system works only when both parties want each other's goods or services simultaneously.

Example:

• If a fisherman wants rice and a farmer wants fish, trade can happen.

• If the farmer does not want fish, exchange fails.

This requirement is called Double Coincidence of Wants.

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Limitations of Barter System

The barter system had several serious economic limitations:

1. Double Coincidence of Wants

Trade occurs only when both parties want each other's goods simultaneously.

Example:

• A doctor may want vegetables, but the farmer may not need medical services.

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2. Lack of Common Measure of Value

There is no standard unit to measure value.

Example:

• How many apples equal one cow?

• How many shirts equal a bag of wheat?

Such comparisons become complicated.

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3. Indivisibility of Goods

Certain goods cannot be divided without losing value.

Example:

• A cow cannot be divided to buy small items like vegetables.

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4. Difficulty in Storing Wealth

Some goods are perishable.

Example:

• Fruits, milk, or vegetables cannot be stored for long periods.

This makes saving wealth difficult.

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5. Difficulty in Deferred Payments

Future payments cannot be easily made.

Example:

• If someone borrows grain today, the value may change in the future.

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6. Lack of Specialisation

Barter discourages division of labour and specialisation.

Without money, individuals must produce many goods themselves.

Example:

• A scientist might need to grow food if barter fails.

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Result

Because of these limitations, societies gradually developed money as a medium of exchange.

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2. Importance of Money in Modern Economy

Money removes barter limitations and allows economic systems to function efficiently.

Money enables:

• Efficient exchange of goods and services

• Division of labour

• Specialisation

• Large-scale trade

• Economic development

Example:

• Teachers teach, doctors treat patients, farmers grow crops — all exchange services using money.

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3. Functions of Money

Money performs three categories of functions:

1. Primary functions

2. Secondary functions

3. Contingent functions (advanced concept)

UPSC mainly focuses on Primary and Secondary functions.

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3.1 Primary Functions of Money

Primary functions are the core functions that define money.

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1. Medium of Exchange

Money acts as an intermediary for buying and selling goods and services.

Example:

• A person pays ₹20 to buy tea.

• A shopkeeper accepts money in exchange for goods.

Importance:

• Eliminates the double coincidence of wants problem.

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2. Measure of Value (Unit of Account)

Money serves as a standard unit to measure the value of goods and services.

Example:

• A book costs ₹300.

• A laptop costs ₹60,000.

All prices are expressed in monetary units, making comparison easier.

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Important Concept:

Digital payment tools like:

• Debit cards

• Credit cards

• UPI

• Cheques

are not money themselves.

They are instruments used to transfer money.

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3.2 Secondary Functions of Money

Secondary functions support economic transactions and financial activities.

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1. Store of Value

Money allows individuals to save purchasing power for future use.

Example:

• People deposit money in banks.

• Money can be held as savings.

Advantage:

• Unlike perishable goods, money retains value over time.

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2. Transfer of Value

Money allows the transfer of purchasing power across locations and individuals.

Example:

• Sending money to family members through bank transfer or UPI.

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3. Standard of Deferred Payments

Money allows payments to be made in the future.

Example:

• Loans

• EMIs

• Credit purchases

This supports modern financial systems.

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4. Evolution of Money

Money evolved gradually through different stages.

Major stages include:

1. Barter system

2. Commodity money

3. Metallic coins

4. Paper currency

5. Fiat money

6. Bank money

7. Digital payments

8. Cryptocurrencies

9. Central Bank Digital Currency (CBDC)

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5. Metallic Money (Coins)

Early coins were made from precious metals like:

• Gold

• Silver

• Copper

Coins can be classified based on face value and intrinsic value.

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Face Value

The value written on the coin.

Example:

• ₹1 coin.

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Intrinsic Value

The value of the metal contained in the coin.

Example:

• Silver content inside a coin.

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Types of Coins

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1. Full-Bodied Coins

Coins where:

Intrinsic Value ≥ Face Value

Example:

• Ancient gold coins.

Problem:
People may melt coins to extract valuable metal.

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2. Token Coins

Coins where:

Intrinsic Value < Face Value

Example:

• Modern ₹1 or ₹5 coins.

Purpose:

• Prevent melting and hoarding.

Most modern coins are token coins.

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6. Fiat Money

Definition

Fiat money refers to currency issued by government authority that has no intrinsic value.

Its value is derived from legal authority and public trust.

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Characteristics

• Issued by central authority

• Not backed by gold or silver

• Accepted by law

Examples:

• Indian Rupee

• US Dollar

• Euro

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Important Concept:

Cryptocurrencies like Bitcoin are not fiat money because they are not issued by governments.

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7. Legal Tender

Definition

Legal tender is money that must be accepted for payment of debts by law.

Example:

• In India, the Indian Rupee is legal tender.

If a debtor offers legal tender, the creditor cannot legally refuse it.

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Types of Legal Tender

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1. Unlimited Legal Tender

No limit on transaction value.

Examples:

• ₹2, ₹5, ₹10, ₹20, ₹50, ₹100, ₹200, ₹500 notes.

These are issued by RBI.

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2. Limited Legal Tender

Accepted only up to a certain limit.

Examples:

• Coins

• ₹1 note issued by Government of India.

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8. Currency Issuance in India

Currency is issued by two authorities.

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Reserve Bank of India

Issues currency notes from:

₹2 to ₹500

Signature on these notes:

• RBI Governor

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Government of India

Issues:

• ₹1 note

• All coins

Signature on ₹1 note:

• Finance Secretary

Coins carry no signature.

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9. Bank Money

Bank money refers to money deposited in bank accounts.

It can be transferred using banking instruments.

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Instruments of Bank Money

• Cheques

• Demand Drafts

• Debit Cards

• Credit Cards

• ATM cards

• UPI

• NEFT

• RTGS

• IMPS

Important:
These are tools for transferring money, not money itself.

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10. Electronic Payment Systems in India

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RTGS (Real Time Gross Settlement)

Key Features:

• Used for high value transactions

• Real-time settlement

• No transaction charges

• Available 24×7

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NEFT (National Electronic Funds Transfer)

Key Features:

• Used for small to medium transactions

• Settlement occurs in half-hourly batches

• Available 24×7

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IMPS (Immediate Payment Service)

Features:

• Instant transfer

• Works through mobile banking and UPI

• Developed by NPCI

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11. Unified Payments Interface (UPI)

UPI is a real-time payment system developed by NPCI.

NPCI stands for:
National Payments Corporation of India.

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Key Features

• Instant fund transfer

• Mobile-based payments

• Works 24×7

• Interoperable between banks

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Popular UPI Apps

• BHIM

• Google Pay

• PhonePe

• Paytm

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12. Merchant Discount Rate (MDR)

MDR is the fee charged to merchants for card transactions.

Example:

• Customer pays ₹10,000 through credit card.

• Merchant may receive ₹9,800 after deduction.

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Important Fact:

UPI payments currently have zero MDR, encouraging digital payments.

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13. Central Bank Digital Currency (CBDC)

CBDC is a digital form of fiat currency issued by a central bank.

In India:
Issued by RBI.

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Features

• Digital legal tender

• Same value as physical currency

• Traceable transactions

• Lower printing cost

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Benefits

• Reduces fake currency

• Improves payment efficiency

• Supports financial inclusion

• Enhances tax transparency

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14. Cryptocurrency

Cryptocurrency is a decentralised digital currency based on cryptography and blockchain.

Examples:

• Bitcoin

• Ethereum

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Key Characteristics

• Not issued by government

• Highly volatile

• Decentralised system

• Uses blockchain technology

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Risks

• Money laundering

• Terror financing

• Tax evasion

• Energy-intensive mining

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India's Position

• Cryptocurrencies are not legal tender

• Profits taxed at 30% capital gains tax

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15. Blockchain Technology

Blockchain is a distributed digital ledger that records transactions securely.

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Features

• Decentralised

• Transparent

• Immutable

• Secure

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Applications

• Cryptocurrency

• Supply chain management

• Digital identity

• Smart contracts

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16. Types of Virtual Currencies

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Sovereign Digital Currency

Issued by central banks.

Example:

• CBDC

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Private Cryptocurrencies

Examples:

• Bitcoin

• Ethereum

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Meme Coins

Cryptocurrency created based on internet memes.

Examples:

• Dogecoin

• Trump Coin

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Stable Coins

Cryptocurrencies linked to real assets.

Examples:

• Linked to US Dollar

• Linked to Gold

Purpose:

• Reduce price volatility.

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17. Non-Fungible Tokens (NFTs)

NFTs are digital tokens representing ownership of unique assets.

Examples:

• Digital artwork

• Music files

• Videos

• Virtual real estate

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Key Feature

NFTs are non-fungible, meaning they cannot be exchanged equivalently.

Example:

• A rare artwork NFT cannot be replaced with another token.

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Fungible vs Non-Fungible

Fungible Assets:

• Currency

• Gold

• Commodities

Non-Fungible Assets:

• Real estate

• Diamonds

• Artworks

• NFTs

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18. Important UPSC Prelims Keywords

Memorize these concepts:

• Double Coincidence of Wants

• Medium of Exchange

• Measure of Value

• Token Coin

• Full-Bodied Coin

• Fiat Money

• Legal Tender

• Limited Legal Tender

• NEFT

• RTGS

• IMPS

• NPCI

• UPI

• Merchant Discount Rate

• CBDC

• Blockchain

• Cryptocurrency

• Stablecoin

• NFT