What is Economics

STUDY UNIT 1.1

WHAT ECONOMICS IS ALL ABOUT?

SEMESTER RULES

  • Respect is paramount:
    ü Respect each other in class.
    ü Punctuality is key—always be on time and prepared for classes.
    ü Never skip classes; attendance is crucial.
    ü Attend Supplemental Instruction (SI) classes.
    ü Make your own notes for effective retention and understanding.
    ü Utilize the study guide provided.
    ü Stay informed about current affairs to contextualize your learning.
    ü Work hard and prioritize your studies!

LEARNING OUTCOMES

Upon completion of this chapter, you should be able to:

  • Discuss the nature of the economic problem.

  • Provide a detailed definition of economics.

  • Understand and explain the concept of opportunity cost.

  • Describe the production possibilities curve/frontier (PPC/F).

  • Illustrate opportunity cost with production possibility graphs.

  • Differentiate between microeconomics and macroeconomics.

  • Distinguish between positive and normative economics.

  • Understand why economics is recognized as a social science.

  • Identify common reasoning mistakes in economics.

  • Familiarize yourself with all relevant concepts.

THE ECONOMIC PROBLEM

  • The economic problem arises from unlimited wants juxtaposed against limited resources.

  • Examples of economic choices include:

    1. Buying a house or a car?

    2. Choosing between a phone or a laptop?

    3. Deciding to study, watch TV, or go to the movies tomorrow night?

    4. Choosing between attending class or going home?

    5. Selecting which course to study?

    6. Deciding whether to continue studies or seek employment?

KEY TERMS

  • Wants: Desires for goods/services—considered unlimited.

  • Needs: Essentials for survival—not absolutely unlimited.

  • Scarce Resources: The limited resources available to satisfy wants.

  • Choices: Decisions made when confronted with scarcity.

  • Opportunity Cost: It is the cost of forgoing the best alternative when making a decision.

DEFINING ECONOMICS

  • Economics is defined as the study of how societies manage their scarce resources to fulfill unlimited wants. It involves making choices that impact resource allocation. (Refer to Box 1-1, textbook page 3).

SCARCITY, CHOICE, AND OPPORTUNITY COST

  • Choices are driven by scarcity and inherently entail opportunity costs. X

  • Key points to understand include:

    • Scarcity: Indicates that society's resources are limited, preventing the fulfillment of all wants.

    • Resources: Not just financial—it encompasses all production factors.

TYPES OF RESOURCES

  1. Capital Resources: Machinery, tools, and equipment needed for production.

  2. Natural Resources: Land and raw materials utilized in the production process.

  3. Human Resources: Labor—the work done by people in manufacturing goods and services.

OPPORTUNITY COST DEFINED

  • Opportunity Cost: The value of the next best alternative forgone when a choice is made. It signifies the potential benefits an individual misses when they select one option over another. For instance, choosing public transport over personal car use can save money but comes at the cost of time and comfort.

PRODUCTION POSSIBILITIES CURVE (PPC)

  • The PPC is a graphical representation that illustrates potential combinations of two goods or services that can be produced with available resources. It depicts concepts of scarcity, choice, and opportunity costs.

  • Characteristics of a PPC:

    • Always downward sloping and concave to reflect increasing opportunity costs.

    • Points outside the curve indicate unattainable combinations with current resources.

    • Points within the curve represent waste or underutilization of resources.

CALCULATING OPPORTUNITY COST USING PPC

  • Example (refer to Table 1-1, page 6): A simplified economy produces fish and potatoes under limited resources. Choices are represented in the table which shows various combinations of production:

Possibility

Fish (baskets/day)

Potatoes (kg/day)

A

0

100

B

1

95

C

2

85

D

3

70

E

4

40

F

5

0

OPPORTUNITY COST CALCULATION

  • Examining shifts between points D and E, gaining an additional fish costs 30 potatoes, which showcases the negative slope of the PPC indicating opportunity costs.

ECONOMICS AS A SOCIAL SCIENCE

  • Economics is categorized as a social science that studies human behavior by collecting empirical data and measuring actual experiences.

MICRO- AND MACROECONOMICS

  • Microeconomics: Focuses on individual parts of the economy such as consumers and firms—essentially, choices made by households and businesses.

  • Macroeconomics: Looks at the economy as a whole encompassing total production, national income, economic growth, inflation, and overall trends in the economy.

DIFFERENCES BETWEEN MICRO AND MACROECONOMICS

  • There are overlaps between both areas, but their distinctions lies in focus—individual choices versus overall economic trends.

POSITIVE AND NORMATIVE ECONOMIC STATEMENTS

  • Positive Statements: Based on factual evidence and can be tested (e.g., "Cyril Ramaphosa is the president of South Africa").

  • Normative Statements: Based on opinions and subjective assessments (e.g., "Bafana Bafana is the best team in the world").

COMMON MISTAKES IN ECONOMIC REASONING

  • Some common pitfalls include:

    • Blinkered approach: Failing to see beyond one's own perspective.

    • Fallacy of composition: Mistaken belief that what is true for one part holds true for the whole.

    • Post hoc reasoning: Attributing causation simply based on the chronologies of events.

    • Correlation vs. causation: Mistaking how unrelated events might be linked.

    • Mistakes in understanding changes in levels versus rates of change.

EXAMPLES AND ASSIGNMENT

  • An example scenario of a student named Palesa illustrates the application of PPC where she must balance her time and grades against coursework demands.

  • Assignment: Sketch Palesa's PPC, evaluate her potential grades against hours of study, and analyze efficiency.

SUMMARY OF PRODUCTION POSSIBILITY CURVE

  • Description: Illustrates possible production rates for two goods.

  • Attainable combinations: All points on or within the PPC.

  • Unattainable combinations: All points beyond the PPC.

  • Efficient: All points on the PPC depict full resource utilization.

  • Inefficient: Points within the PPC signify underused resources.

  • Economic Growth: Outward shifts indicate increased productive capacity.

NEXT CLASS

  • To prepare for Chapter 2, focus on economic systems covering socialism, capitalism, and mixed economies.

REVISION AND SUPPORT

  • Do not wait until test day to start revising. Continually engage with the material to ensure better retention and understanding.

OUTCOMES COVERED

  • Understand the fundamental nature of economics, the necessity of making choices due to scarcity.

  • Recognize the role of opportunity cost in choices.

  • Utilize the production possibility curve to illustrate core concepts.

  • Differentiate between micro and macroeconomics.

  • Differentiate between normative and positive statements.

  • Identify common errors in economic reasoning.

  • Refer to Appendix 1-1 on basic tools of economic analysis for additional support.