Introduction to economics flashcards

Introduction to economics explores why choices must be made in a world of limited resources. Students must understand that scarcity — the fundamental economic problem — arises because human wants are unlimited while resources are finite. This forces individuals, firms and governments to make choices, and every choice involves an opportunity cost: the next best alternative forgone. Economics is divided into microeconomics, which studies individual decision-makers, and macroeconomics, which examines the economy as a whole. The factors of production — land, labour, capital and enterprise — are the resources used to produce goods and services. Students should also grasp the distinction between free goods and economic goods, and between needs and wants. Understanding how economists use models and simplifying assumptions to analyse real-world behaviour is equally essential at this level.

1. Card 1

   What is the fundamental economic problem?

   Scarcity: human wants are unlimited but the resources available to satisfy them are finite, forcing choices to be made.

2. Card 2

   Define opportunity cost.

   Opportunity cost is the value of the next best alternative that is given up when a choice is made.

3. Card 3

   What are the four factors of production?

   Land, labour, capital and enterprise — the resources combined to produce goods and services in any economy.

4. Card 4

   What is the difference between microeconomics and macroeconomics?

   Microeconomics studies individual consumers and firms; macroeconomics examines the economy as a whole, including inflation and growth.

5. Card 5

   What distinguishes a need from a want in economics?

   A need is something essential for survival; a want is a desire beyond basic necessity. Economics focuses mainly on wants due to their unlimited nature.

6. Card 6

   What is an economic good, and how does it differ from a free good?

   An economic good is scarce and has an opportunity cost. A free good (e.g. sunlight) is available in unlimited supply with no opportunity cost.

7. Card 7

   What does a production possibility curve (PPC) illustrate?

   A production possibility curve shows the maximum combinations of two goods an economy can produce, illustrating scarcity, choice and opportunity cost.

8. Card 8

   What does a point inside the PPC represent?

   A point inside the PPC shows productive inefficiency — resources are unemployed or misallocated, so output is below the economy's potential.

9. Card 9

   What causes an outward shift of the PPC?

   Economic growth — from improved technology, increased resources or better education — shifts the PPC outward, raising productive capacity.

10. Card 10

    What is the role of ceteris paribus in economic models?

    Ceteris paribus means 'all other things equal'; economists hold other variables constant to isolate the effect of one variable in a model.

11. Card 11

    Distinguish between positive and normative economics.

    Positive economics makes objective, testable statements; normative economics involves value judgements about what ought to happen.

12. Card 12

    What are the three basic economic questions every society must answer?

    What to produce, how to produce it, and for whom to produce it — the central allocation decisions arising from scarcity.

• Many students confuse scarcity with shortage: scarcity is a permanent condition because wants always exceed resources, whereas a shortage is a temporary market imbalance where demand exceeds supply at a given price.
• Students often describe opportunity cost as simply 'what you give up' without specifying it must be the next best alternative, which is the precise definition required for full marks.
• A common error is treating a point on the PPC as showing allocative efficiency, when in fact the PPC only demonstrates productive efficiency — allocative efficiency requires a separate analysis of consumer and social welfare.

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