Index
Introduction - 1
Defining A Market - 2
The Importance Of Competition - 3
The Result Of Competition - 4
Intervening In Markets - 5
The Allocative Role - 6
The Distributive Role - 7
The Regulative Role - 8
The Regulative Role (continued) - 9
The Role Of Government - 10
The Role of Government (continued) - 11
The Stabilizing Role - 12
Vertical and Horizontal Integration Defined - 13
Defining Market Structure - 14
How A Firm Can Grow - 15
Mergers and Takeovers - 16
Vertical And Horizonal Integration (Diagram) - 17
Why markets Vary in Structure - 18
Product Differentiation - 19
Product Differentiation (continued) - 20
Free Range ''Googs''- 21
Product Differentiation (continued) - 22
Non Price Competition - 23
Non Price Competition (continued) - 24
Defining The Types Of Market Structures - 25
Perfect Competition - 26
Perfect Competition (continued) - 27
The Market For Oranges - 28
The Market For Oranges (continued) - 29
Bitter Oranges - 30
Summary: Perfect Competition - 31
Monopolistic Competition - 32
True Blue Oranges - 33
Monopolistic Competition (continued) - 34
Oligopoly - 35
Oligopoly (continued) - 36
Oligopoly (continued) - 37
Kinked Demand Curves - 38
OPEC - 39
OPEC (continued) - 40
Monopoly - 41
Microsoft - 42
Why Monopolies Are Inefficient - 43
Revision Questions On Market Forms - 44

The Stabilizing Role - 12

The price mechanism can lead to periods of economic instability. Unemployment can rise, if demand is not great enough to ensure full employment. Unemployed households can not be left to starve, if they do not have savings to support them in periods of no work.

We can not assume that competition will exist in all markets. In fact, production in some markets may be dominated by one firm (a monopoly) or a few firms (an oligopoly), who could influence the price of the good or service they produce, so that consumers may pay excessively high prices. One could argue that high prices would attract new firms to enter these markets, and thus create competition. However, the time lag between no competition and full competition may be so long that consumers may have to endure high prices for a very long time, if not forever, before the conditions in the market change. One common method of reducing competition in a market is collusion. Oligopolies have been known to do ''under the table'' agreements, dividing markets between firms in the market, to the disadvantage of consumers. Collusion often involves price fixing: denying consumers effective choice. By ''colluding'', the members of an oligopoly join together and act effectively as a monopoly.

Firms who are considered to have high levels of market power or who engage in ''anti-competitive behaviour'' can be investigated by the Australian Competition and Consumer Commission (the ACCC). Follow the highlighted link to read more about the ACCC.