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ECONOMICS FOR SOUTH AFRICAN STUDENTS
CHAPTER 1:
WHAT IS ECONOMICS?
ECON-1
THE ECONOMY VS.
Studying Economics
HOW WOULD YOU DESCRIBE
THE STUDY OF ECONOMICS?
Needs
Resources
Scarcity
Choice
Opportunity cost
ECONOMISTS LIKE GRAPHS
Scarcity, choice and opportunity cost can be illustrated with
the production possibilities frontier.
• What is the production possibilities frontier?
• The example of the production of fish and potatoes...
Option Fish (baskets per
day)
Potatoes (kg per day)
A 0 100
B 1 95
C 2 85
D 3 70
E 4 40
F 5 0
FIGURE 1-1
Option Fish
(baskets per
day)
Potatoes (kg
per day)
A 0 100
B 1 95
C 2 85
D 3 70
E 4 40
F 5 0
FIGURE 1-1
Cannot be produced
with available resources
Society has to choose:
C = 2 baskets fish and 85kg potatoes
D = 3 baskets fish and 70 kg potatoes
What is the opportunity cost of
One more basket of fish?
THE SCIENCE OF ECONOMICS
Social science...
• There are laws – it is differs from the natural sciences
• LAW of DEMAND!
• What is demand again?
• Ceteris paribus
2 HOOFDELE VAN DIE STUDIE VAN
EKONOMIE
Economics
MACRO
The economy
as a whole
MICRO
Individual
participants

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Intro to ECON_Chapter 1

  • 1. ECONOMICS FOR SOUTH AFRICAN STUDENTS CHAPTER 1: WHAT IS ECONOMICS? ECON-1
  • 3. HOW WOULD YOU DESCRIBE THE STUDY OF ECONOMICS? Needs Resources Scarcity Choice Opportunity cost
  • 4. ECONOMISTS LIKE GRAPHS Scarcity, choice and opportunity cost can be illustrated with the production possibilities frontier. • What is the production possibilities frontier? • The example of the production of fish and potatoes... Option Fish (baskets per day) Potatoes (kg per day) A 0 100 B 1 95 C 2 85 D 3 70 E 4 40 F 5 0
  • 5. FIGURE 1-1 Option Fish (baskets per day) Potatoes (kg per day) A 0 100 B 1 95 C 2 85 D 3 70 E 4 40 F 5 0
  • 6. FIGURE 1-1 Cannot be produced with available resources Society has to choose: C = 2 baskets fish and 85kg potatoes D = 3 baskets fish and 70 kg potatoes What is the opportunity cost of One more basket of fish?
  • 7. THE SCIENCE OF ECONOMICS Social science... • There are laws – it is differs from the natural sciences • LAW of DEMAND! • What is demand again? • Ceteris paribus
  • 8. 2 HOOFDELE VAN DIE STUDIE VAN EKONOMIE Economics MACRO The economy as a whole MICRO Individual participants