Money and Inflation

1. Money: Types, Characteristics, and Functions

Money is anything that is generally accepted as a medium of exchange and for the settlement of debts. Before money, the Barter System was used (the exchange of goods for goods), which suffered from the 'double coincidence of wants' problem.

Characteristics of Money

• General Acceptability: Must be recognized by everyone as payment.
• Portability: Easy to carry around.
• Durability: Must last a long time without wearing out.
• Divisibility: Can be broken into smaller units (e.g., Kobo and Naira).
• Limited Supply (Scarcity): Must be relatively scarce to maintain value.
• Homogeneity: Every unit must look and be the same as others of the same denomination.

Functions of Money

• Medium of Exchange: Facilitates trade.
• Unit of Account: Provides a common measure of value.
• Store of Value: Allows wealth to be saved for the future.
• Standard for Deferred Payment: Facilitates lending and credit transactions.

2. Demand for and Supply of Money

According to J.M. Keynes' Liquidity Preference Theory, there are three motives for holding money:

• Transactionary Motive: Holding money for daily needs (food, transport).
• Precautionary Motive: Holding money for unexpected emergencies (illness, car repairs).
• Speculative Motive: Holding money to take advantage of future changes in interest rates or investment opportunities.

Supply of Money: This refers to the total stock of money in circulation in an economy. It is controlled by the Central Bank and includes currency (coins and notes) and demand deposits.

3. Quantity Theory of Money (Fisher Equation)

Irving Fisher proposed the equation: MV = PT

• M: Total money supply.
• V: Velocity of circulation (how many times money changes hands).
• P: General price level.
• T: Total volume of transactions (or Y for output).

The theory suggests that an increase in the money supply (M) leads to a proportional increase in the price level (P), assuming V and T are constant.

4. Inflation

Inflation is a persistent and continuous rise in the general price level of goods and services in an economy over time.

Types of Inflation

• Demand-Pull: Occurs when total demand exceeds total supply ('too much money chasing too few goods').
• Cost-Push: Occurs when production costs (wages, raw materials) increase and producers pass the cost to consumers.
• Hyperinflation: Extremely rapid or out-of-control inflation.

Measurement: Consumer Price Index (CPI)

CPI measures the weighted average of prices of a basket of consumer goods and services. Formula:

CPI = (Current Price / Base Year Price) × 100

5. Deflation

Deflation is a persistent fall in the general price level. While it sounds good, it often leads to reduced production, unemployment, and economic recession because businesses make less profit.