Chapter 8 – Building Blocks in Economics: The Problem of Choice
Human wants are numerous and continuously expanding, while the resources available to satisfy those wants are limited. This creates scarcity and forces individuals, businesses and governments to make choices. This is the basic problem studied in economics.
1. Needs and Wants
Some goods and services are essential for survival and basic well-being. These are called needs.
People also desire many goods and services that provide comfort, convenience or enjoyment. These are called wants.
Food, water and shelter are basic needs, while an expensive smartphone, a car or a holiday trip may be considered wants.
2. Resources and Their Limited Nature
Human wants are numerous, but resources such as land, water, labour, capital, time and natural resources are limited.
The same resource can often be used for different purposes. Therefore, decisions have to be made about how scarce resources should be used.
3. Scarcity
Scarcity exists when available resources are insufficient to satisfy all human wants simultaneously.
Unlimited wants + Limited resources = Scarcity → Need for Choice
4. The Problem of Choice
Because resources are limited, every individual, household, business and government has to decide how available resources should be used.
Therefore, choice is an essential part of economic decision-making.
5. Opportunity Cost
When we choose one option from several alternatives, we give up another option. The value of the next best alternative that is given up is called the opportunity cost.
Suppose a student has ₹100 and uses it to buy a book instead of saving it for a cricket bat. The value of the next best alternative given up represents the opportunity cost.
6. Features of Opportunity Cost
- Every choice may involve an opportunity cost.
- It refers to the next best alternative.
- It is not limited to money; time and other resources can also have opportunity costs.
- It helps us understand the real trade-offs involved in economic decisions.
7. Major Resources Used in Production
- Land: Natural resources used in production.
- Labour: Human effort used in producing goods and services.
- Capital: Human-made resources used for production.
- Technology: Knowledge and techniques that improve production and efficiency.
8. Production Possibility Curve (PPC)
A Production Possibility Curve shows different possible combinations of two goods that can be produced using available resources and technology efficiently.
| Combination | Barley (kg) | Wheat (kg) |
|---|---|---|
| A | 0 | 100 |
| B | 25 | 90 |
| C | 50 | 70 |
| D | 75 | 40 |
| E | 100 | 0 |
The PPC generally slopes downward because increasing the production of one good may require giving up some production of the other good when resources are limited.
9. Important Points Related to PPC
- A point on the curve represents efficient use of available resources.
- A point inside the curve may indicate underutilisation of resources.
- A point outside the curve cannot be achieved with the current resources and technology.
10. What Does Economics Study?
Economics studies how individuals, households, businesses and governments make choices about the use of limited resources to satisfy needs and wants.
It also studies decisions related to the production, distribution and consumption of goods and services.
11. The Three Central Economic Questions
Every economy has to answer three fundamental questions:
- What to produce?
- How to produce?
- For whom to produce?
12. What to Produce?
Since resources are limited, an economy must decide which goods and services should be produced and in what quantities.
13. How to Produce?
An economy has to decide which production techniques and combinations of resources should be used to produce goods and services.
14. For Whom to Produce?
An economy must also decide how the goods and services produced should be distributed among different people and groups in society.
15. Economic Systems
Different societies answer these economic questions in different ways. This leads to different types of economic systems.
16. Planned Economy
In a planned or centrally planned economy, the government has a major role in making economic decisions. Important decisions regarding production and allocation of resources may be taken through central planning.
17. Market Economy
In a market economy, economic decisions are strongly influenced by market forces such as demand, supply and prices. Producers and consumers play important roles in decision-making.
18. Mixed Economy
A mixed economy combines the role of market forces with government intervention. Both private economic activity and government policies influence economic decisions.
19. Welfare Economy
A welfare-oriented economy gives importance not only to economic growth but also to the well-being of different sections of society.
Governments may promote welfare through social security, public services and support for vulnerable groups.
Quick Revision
Limited Resources → Scarcity → Choice → Opportunity Cost
Three Central Economic Questions:
What to produce? → How to produce? → For whom to produce?
Important Terms
- Scarcity: A situation in which limited resources cannot satisfy all wants.
- Choice: Selecting one or more alternatives from available options.
- Opportunity Cost: The value of the next best alternative given up when a choice is made.
- Production Possibility Curve: A curve showing possible combinations of two goods that can be produced with available resources and technology.
- Planned Economy: An economy in which the government has a central role in economic decisions.
- Market Economy: An economy in which market forces play a major role in economic decisions.
- Mixed Economy: An economy in which both market forces and government intervention play important roles.
Important Questions for Practice
- What is scarcity?
- Distinguish between needs and wants.
- What is opportunity cost? Give an example.
- What does a Production Possibility Curve represent?
- Explain the major resources used in production.
- What are the three central economic questions?
- Distinguish between a planned economy and a market economy.
- What is a mixed economy?
- Why does scarcity make choice necessary?
- Why is the study of economics important in everyday life?