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Barriers to Entry and Exit
Barriers to entry and exit
• Block potential entrants
from making a profit
• Protect the monopoly
power of existing firms
• Maintain supernormal
profits in the long run
• Barriers to entry make a
market less contestable
Barriers to Entry?
V
Economies of scale Vertical integration Brand loyalty
Control of important
technologies
Expertise and
reputation
Google’s Dominance – Entry Barriers
Google controls almost 90
per cent of the search
market in the UK, and
almost 96 per cent of
Google's revenue still comes
from advertising
Market Power Through Vertical Integration
Strategies to Limit Competition
Limit pricing tactics Predatory pricing tactics
Brand proliferation
Strategies to Limit Competition
Limit pricing tactics Predatory pricing tactics
Brand proliferation
When a firm sets price
low enough to
discourage new
entrants into the
market
Strategies to Limit Competition
Limit pricing tactics Predatory pricing tactics
Brand proliferation
When a firm sets price
low enough to
discourage new
entrants into the
market
Setting an artificially
low price for a product
in order to drive out
competitors
Strategies to Limit Competition
Limit pricing tactics Predatory pricing tactics
Brand proliferation
When a firm sets price
low enough to
discourage new
entrants into the
market
Setting an artificially
low price for a product
in order to drive out
competitors
Saturating the market
with a huge range of
similar products
Legal Entry Barriers
Market licences Patent protection
State awarded franchises Import controls
Cost & Price
Output (Q)
Costs and contestability in different industries
Cost & Price
Output (Q)
Low MES, limited scale
economies, contestable market
High MES, falling LRAC, barriers to
contestability
LRAC
LRAC
P6
Cost & Price
Output (Q)
Costs and contestability in different industries
Low MES, limited scale
economies, contestable market
LRAC
Q1
Minimum
efficient
scale (MES)
Scope for many firms to
reach the MES
P6
Q3Q2Q1
Cost & Price
Output (Q)
Costs and contestability in different industries
Low MES, limited scale
economies, contestable market
LRAC
Q1 Output (Q)
High MES, falling LRAC, barriers to
contestability
Extensive internal
economies of scale
leading to lower LRAC
LRAC
Natural Monopoly
Minimum
efficient
scale (MES)
Scope for many firms to
reach the MES
Q4
Cost & Price
Output (Q)
Cost Advantages for Existing / Established Businesses
Cost advantage for Firm A over
a potential rival Firm B
At output Q1 – firm A has a big
cost advantage over a
potential rival firm B
Reasons?
Firm B
Firm A
Q1
AC (B)
AC (A)
Cost & Price
Output (Q)
Cost Advantages for Existing / Established Businesses
Cost advantage for Firm A over
a potential rival Firm B
At output Q1 – firm A has a big
cost advantage over a
potential rival firm B
1. Learning economies
2. Vertical integration
3. Lower customer churn
4. Monopsony power
Firm B
Firm A
Q1
AC (B)
AC (A)
Cost ,
Price
Quantity of output
Plant close-downs and market exit
MC
AC
AVC
Remember that MC
always cuts AC and AVC
at the minimum points
Cost ,
Price
Quantity of output
Plant close-downs and market exit
MC
AC
AVC
AR
MR
Q1
P1
Cost ,
Price
Quantity of output
Plant close-downs and market exit
MC
AC
AVC
AR
MR
Q1
P1
C1
Cost ,
Price
Quantity of output
Plant close-downs and market exit
MC
AC
AVC
AR
MR
Q1
P1
C1
Business is making a loss
here because P < AC
i.e. sub-normal profit
Cost ,
Price
Quantity of output
Showing the shut down price and the normal profit price on a diagram –
assume this firm is operating in a perfectly competitive market
MC
AC
AVC
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Barriers to Entry and Exit

  • 1. Barriers to Entry and Exit
  • 2. Barriers to entry and exit • Block potential entrants from making a profit • Protect the monopoly power of existing firms • Maintain supernormal profits in the long run • Barriers to entry make a market less contestable
  • 4. Economies of scale Vertical integration Brand loyalty Control of important technologies Expertise and reputation
  • 5. Google’s Dominance – Entry Barriers Google controls almost 90 per cent of the search market in the UK, and almost 96 per cent of Google's revenue still comes from advertising Market Power Through Vertical Integration
  • 6. Strategies to Limit Competition Limit pricing tactics Predatory pricing tactics Brand proliferation
  • 7. Strategies to Limit Competition Limit pricing tactics Predatory pricing tactics Brand proliferation When a firm sets price low enough to discourage new entrants into the market
  • 8. Strategies to Limit Competition Limit pricing tactics Predatory pricing tactics Brand proliferation When a firm sets price low enough to discourage new entrants into the market Setting an artificially low price for a product in order to drive out competitors
  • 9. Strategies to Limit Competition Limit pricing tactics Predatory pricing tactics Brand proliferation When a firm sets price low enough to discourage new entrants into the market Setting an artificially low price for a product in order to drive out competitors Saturating the market with a huge range of similar products
  • 10. Legal Entry Barriers Market licences Patent protection State awarded franchises Import controls
  • 11. Cost & Price Output (Q) Costs and contestability in different industries Cost & Price Output (Q) Low MES, limited scale economies, contestable market High MES, falling LRAC, barriers to contestability LRAC LRAC P6
  • 12. Cost & Price Output (Q) Costs and contestability in different industries Low MES, limited scale economies, contestable market LRAC Q1 Minimum efficient scale (MES) Scope for many firms to reach the MES P6
  • 13. Q3Q2Q1 Cost & Price Output (Q) Costs and contestability in different industries Low MES, limited scale economies, contestable market LRAC Q1 Output (Q) High MES, falling LRAC, barriers to contestability Extensive internal economies of scale leading to lower LRAC LRAC Natural Monopoly Minimum efficient scale (MES) Scope for many firms to reach the MES Q4
  • 14. Cost & Price Output (Q) Cost Advantages for Existing / Established Businesses Cost advantage for Firm A over a potential rival Firm B At output Q1 – firm A has a big cost advantage over a potential rival firm B Reasons? Firm B Firm A Q1 AC (B) AC (A)
  • 15. Cost & Price Output (Q) Cost Advantages for Existing / Established Businesses Cost advantage for Firm A over a potential rival Firm B At output Q1 – firm A has a big cost advantage over a potential rival firm B 1. Learning economies 2. Vertical integration 3. Lower customer churn 4. Monopsony power Firm B Firm A Q1 AC (B) AC (A)
  • 16. Cost , Price Quantity of output Plant close-downs and market exit MC AC AVC Remember that MC always cuts AC and AVC at the minimum points
  • 17. Cost , Price Quantity of output Plant close-downs and market exit MC AC AVC AR MR Q1 P1
  • 18. Cost , Price Quantity of output Plant close-downs and market exit MC AC AVC AR MR Q1 P1 C1
  • 19. Cost , Price Quantity of output Plant close-downs and market exit MC AC AVC AR MR Q1 P1 C1 Business is making a loss here because P < AC i.e. sub-normal profit
  • 20. Cost , Price Quantity of output Showing the shut down price and the normal profit price on a diagram – assume this firm is operating in a perfectly competitive market MC AC AVC
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