Scarcity and Choice

SCARCITY AND CHOICE

Economics starts from one simple truth:
Human wants are unlimited, but the resources to satisfy them are limited.
This creates the fundamental economic problem called scarcity — and because of scarcity, we are forced to make choices.

Let’s break it down nicely.

1️⃣ Meaning of Scarcity

Scarcity means limited resources in relation to unlimited human wants.

Humans always want more — more food, more clothes, better phones, more enjoyment — but the resources (money, time, materials, land, labour) are never enough to satisfy everything at once.

Key Features of Scarcity

• Resources are limited.

• Human wants are unlimited.

• Leads to competition among people, firms, and nations.

• It is universal — affects everyone: rich or poor, individuals or governments.

Examples of Scarcity

• You want five things but only have money for two.

• A country needs electricity, hospitals, roads, but can’t fund all at once.

• There is limited land for farming vs. housing.

2️⃣ Choice

Because resources are scarce, individuals and societies must decide which wants to satisfy first.
This decision-making is called choice.

Meaning of Choice

Choice is selecting one need or want and sacrificing the other options due to limited resources.

Key Points

• Choosing one thing means giving up another.

• Choices are influenced by income, preference, price, and urgency.

• Every choice comes with a cost.

3️⃣ Scale of Preference

To make smart choices, people rank their wants from most important to least important.
This ranking is called a scale of preference.

Purpose

• Helps in planning and spending.

• Ensures limited resources are used for the most important needs first.

Example

1. Food

2. School fees

3. Transport

4. New shoes

If you only have ₦10,000, you satisfy the top items first.

4️⃣ Opportunity Cost (Real Cost)

Every choice has a cost — not in money, but in what you give up.

Definition:
Opportunity cost is the next best alternative forgone when a choice is made.

Examples

• If you buy data instead of food, the opportunity cost is the food.

• If government builds a hospital instead of a road, the road is the opportunity cost.

Key Point

Opportunity cost is always the next best option, not all options.

5️⃣ The Basic Economic Problem

Scarcity → Forces Choice → Leads to Opportunity Cost.

This chain affects:

• Individuals

• Firms

• Government

Everyone must choose how to allocate limited resources.

6️⃣ Possible JAMB/WAEC Questions

1. Define scarcity.

2. Explain why scarcity leads to choice.

3. What is a scale of preference?

4. Define opportunity cost with an example.

5. State three causes of scarcity.

6. Illustrate opportunity cost with a diagram (PPF)