PPT

What is economics?

  • Basic Economic Problem forms core of econs
    • Scarcity - Unlimited wants and limited resources - resources are scarce limited to wants
    • Choices - have to be made between resources due to the scarcity of them
    • Opportunity Cost - Value of next best alternative foregone by making a choice
  • To solve the BEP, four questions. Economic Systems exist to solve these four questions
    • What to produce?
    • How to produce?
    • For whom to produce?
    • How much to produce?
  • Systems
    • Planned Economy
    • Free Market Economy
    • Mixed Economy
      • Australia
  • Two types of economics
    • Microeconomics - individual/consumer level
    • Macroeconomics - nationwide
  • Don't need to know! Not in objectives
    • Positive economics - testing and developing economic theory 'what is' or 'what should be' - subjects are testable objectively
      • Raising interest rates makes borrowing more expensive
    • Normative economics - reflect opinions rather than facts, cannot be tested objectively
      • The freer the market, the freer the people

The use of models

  • Simplified representation of economic reality showing relationship between certain economic variables
  • Determine cause and effect
  • Ability to predict events accurately
  • For example, The Production Possibility Frontier
Production Possibility Frontier
  • Used to visualise the opportunity cost of producing one good/service over another. BEP is best demonstrated with a PPF. There are three main assumptions;
    • Resources are fixed
    • Technology is fixed
    • Economy produces only 2 goods
  • Each axis are goods
    • Bowed out curve (realistic)
    • Straight curve (constant opportunity cost)
    • Inside curve - inefficient points
    • Outside - unattainable points
    • On curve - efficient and attainable
    • Curve can shift if technology or resources change

Characteristics of a Market Economy

  • Solves the BEP in a network of seperate but interconnected markets
  • Markets have;
    • Buyers (create demand)
    • Sellers (create supply)
    • A commodity (that is bought or sold)
    • Voluntary exchange (between buyers and sellers)
    • A process, mechanics or arrangement through which buyers and sellers 'meet'
    • Price (dependant on strength of demand and supply)
  • Two types;
    • Product markets:
      • Demand is created by consumers or households
      • Deal in the buying and selling of goods and services
      • Supply is created by producers and firms
    • Factor markets:
      • Deal in the buying and selling of factors of production (Land, Labour, Capital, Enterprise)
      • Demand created by firms
      • Supply created by households
Key features of a market economy
  • Property rights and private ownership
  • Economic freedom (able to choose one's own participation in the economy)
  • Self-interest
  • Competition
  • Moral Hazards (there are consequences of poor decision making)
  • Limited role of government (mainly regulatory)