Study Notes
Scarcity arises because resources are limited while human wants are unlimited, leading to the need for choices and opportunity costs. Economics studies how to best use scarce resources to satisfy these wants.
- Scarcity — the problem of limited resources and unlimited wants Example: Not enough water to meet all agricultural and personal needs
- Opportunity Cost — the value of the next best alternative forgone Example: Choosing to spend money on a book instead of a movie
- Economic Goods — goods that are scarce and have an opportunity cost Example: Oil, which is limited and costly to extract
- Free Goods — goods that are unlimited in supply and have no opportunity cost Example: Air, which is abundant and free to use
- Renewable Resources — resources that can replenish themselves Example: Solar energy, which is continuously available
- Non-renewable Resources — resources that cannot be replaced once used Example: Coal, which takes millions of years to form
- Land — natural resources used in production Example: Forests, which provide timber
- Labour — human capital involved in production Example: Factory workers assembling products
- Capital — manufactured resources used in production Example: Machinery in a factory
- Enterprise — the risk-taking factor in production Example: Entrepreneurs starting new businesses
Exam Tips
Key Definitions to Remember
- Scarcity
- Opportunity Cost
- Economic Goods
- Free Goods
- Renewable Resources
- Non-renewable Resources
Common Confusions
- Confusing free goods with economic goods
- Misunderstanding opportunity cost as a monetary cost
Typical Exam Questions
- What is scarcity? Scarcity is the problem of limited resources and unlimited wants.
- How does opportunity cost relate to choice? Opportunity cost is the value of the next best alternative forgone when a choice is made.
- What distinguishes renewable from non-renewable resources? Renewable resources can replenish themselves, while non-renewable resources cannot be replaced once used.
What Examiners Usually Test
- Understanding of scarcity and its implications
- Ability to explain opportunity cost with examples
- Distinction between different types of resources