A market situation where there are small no. of
large firms in the industry, and where firms are
interdependent and collude with each other
Characteristics of an Oligopolistic Market
Few Sellers in the Industry:
they tend to be price setters
rather than price takers
Interdependence between Firms: they
will take into account the likely
reactions of their competitors
Product Differentiation Occurs: the goods
that firms sell are close substitutes
Barriers to Entry are high
High set-up costs
Access to expensive technology
Brand proliferation
Collusion May Occur
Non-price Competition Is More
Common than Price Competition
Persuasive advertising
Competitive Advertising
Informative Advertising
The Kinked Demand Curve
Paul Sweezy
A firm's competitors would not follow a price
increase but would instead increase their market
share by selling more at existing prices and
thereby gaining extra profit. If price was reduced
then all firms would similarly reduce their prices
Price Rigidity: a situation where firms are
unwilling to enter into price competition
Long Run: SPECS
The firm is earning SNP because AR>AC
Price charged at P and quantity produced at Q
Equilibrium occurs at MC=MR
Scarce resources used efficiently as firm
is producing at lowest point of AC
If costs rise, then market price tends to remain constant
Collusion in Oligopolistic Markets
Any action undertaken by separate and rival
firms to restrict competition between them
with a view to increasing their total profit
Types of Collusion
Output Policy: firms could join together to
limit output to certain agreed amounts
Sales Territories: firms could divide up the
markets between them and agree not to
compete in each other's market segments
Limit Pricing: existing companies may not wish to
encourage new entrants by earning SNP. Instead
they lower their prices so low it is unattractive to set up
That existing company sacrifices larger profits
for long-term survival
Pursuing Objectives Other than
Profit Maximisation
Government Intervention: may decide
against earning huge SNP for fear the
government will restrict their acctivities
Limit Pricing
Managers Not Owners
Managers May Pursue Increased Sales
Satisfactory Profit Levels: owners may
want more leisure time