What Is Economics? (Grade 10 NSC Matric Economics): Revision Notes
Basic Concepts
What is economics?
Economics is the study of how people, businesses, governments, and organisations make decisions about using scarce resources to satisfy unlimited wants and limited needs. At its core, economics helps us understand why we have to make choices and how these choices affect society.
Think about your own life - you probably have many things you want (new clothes, games, gadgets, experiences), but you only have a limited amount of money to spend. This is exactly what economics studies on a much larger scale.
Economics is essentially about choice - when resources are scarce, we must decide what we want most and what we're willing to give up to get it.
The economic problem
Understanding scarcity
The fundamental economic problem that affects everyone is scarcity. This means that whilst people have unlimited wants (and limited needs), the resources available to satisfy them are limited. This creates a gap between what we want and what we can actually have.
Scarcity is the foundation of all economic thinking. Without scarcity, there would be no need to make economic choices - we could have everything we wanted. This concept applies to individuals, businesses, and entire countries.
For individuals, this scarcity is easy to understand. People have limited income but lots of things they would like to buy or do.
Each individual faces choices - they might want to go shopping, buy DVDs, and go on holidays, but they only have limited money to spend on these activities.
Government faces scarcity too
Even governments face the same problem. The South African government has a budget (around R2.6 trillion in consolidated expenditure for 2025/26), but there are many important services that need funding.
Governments must allocate limited resources between essential services like schools, health care, and police. The government cannot fund everything it would like to, so it must make difficult choices about priorities.
Government Budget Allocation
Governments face the same scarcity problem as individuals, just on a much larger scale. They must decide how to distribute limited tax revenue among competing priorities like education, healthcare, infrastructure, and defense.
The three fundamental economic questions
Because of scarcity, every society must answer three basic economic questions:
The Three Fundamental Economic Questions:
- What should be produced? - Which goods and services should society create with its limited resources?
- How should it be produced? - What methods and technologies should be used in production?
- For whom will it be produced? - Who will receive the goods and services that are produced?
These questions apply whether we're talking about a family budget, a business, or an entire country's economy.
Branches of economics
Economics is divided into several main areas of study that help us understand different aspects of economic behaviour.
Microeconomics vs macroeconomics
Microeconomics focuses on individual decision-making. It examines how individual consumers, families, and businesses make choices about spending, saving, and resource allocation. For example, it might study why a person chooses to buy one product over another, or how a business decides what price to charge.
Macroeconomics takes a broader view and studies the economy as a whole. It deals with big-picture issues such as:
- Unemployment levels across the country
- Inflation (rising prices)
- Economic growth
- Government spending and taxation policies
Both branches deal with scarcity, but at different levels - micro looks at individual scarcity, whilst macro examines scarcity for entire economies.
Specialised areas of economics
Economics has developed many specialised branches to study specific aspects of economic life:
- Monetary economics - Studies how money works, how it's controlled, and how it's used in the economy
- Public sector economics - Examines the government's role in the economy and how public services are provided
- Developmental economics - Focuses on policies and strategies that help developing countries grow economically
- Labour economics - Studies employment, wages, and how the job market affects the economy
- Environmental economics - Looks at economic issues that impact the environment and sustainability
- International economics - Examines trade and financial relationships between countries
Approaches to economics
How economists study behaviour
Economists are like detectives - they observe how people behave when making economic decisions and try to understand the patterns. They study how people produce goods, trade with others, and consume products and services.
Economics particularly focuses on how people behave when it comes to money and making choices about spending and saving.
Research methods in economics
Economists use their observations to develop theories and principles that help explain economic behaviour. They use two main approaches:
Deductive approach: Economists start with a theory or principle, then test it against real-world facts to see if the theory correctly explains what actually happens.
Inductive approach: Economists collect lots of facts and observations first, then use this information to develop theories that explain the patterns they see.
Combination approach: Most economists use a mix of both methods to build a complete understanding of economic behaviour.
Economic "laws"
Understanding Economic "Laws"
It's important to understand that economic "laws" are not like scientific laws (such as gravity). Instead, they are general statements about how people typically behave in economic situations. These laws help us predict what might happen, but human behaviour can sometimes be unpredictable.
Key Points to Remember:
- Economics studies how society deals with scarcity - unlimited wants but limited resources
- The basic economic problem is scarcity, which forces us to make choices about what to produce, how to produce it, and who gets it
- Microeconomics focuses on individuals whilst macroeconomics looks at the whole economy
- Economics has many specialised branches that study different aspects of economic life
- Economists use systematic research methods to observe behaviour and develop theories about how economies work