Oligopolies Flashcards

1
Q

Oligopoly

A

Few firms dominate the market and have majority market share

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2
Q

Four Characteristics of Oligopoly

A
  • Products are differentiated
  • High concentration ratio of supply
  • Firms are interdependent so become collusive and competitive
  • Barriers to entry
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3
Q

What does high concentration ratio of supply mean

A

Supply in the industry is concentrated in a small number of firms

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4
Q

What is the demand curve like in oligopolies

A

Kinked

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5
Q

Why is the kinked demand curve normally sloped to begin with in oligopolies

A

The D curve to begin with is elastic because if a firm increases their price other firms won’t follow because they will become the cheaper alternative so a small increase in price will have a large effect on demand

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6
Q

Why does the Kinked demand curve slope more steeply after the kink in oligopolies

A

It becomes inelastic because this is the point that a firm may decrease price, if this happens others will follow to remain competitive so there is a very small effect on demand when there is a small price change

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7
Q

Where is P1 or where does price start on the oligopoly diagram

A

At the demand/AR curve kink

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8
Q

What is the Kinked Demand curve successful in explaining

A

Why prices are relatively stable in oligopolies

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9
Q

Why don’t changes in demand or cost have an effect on price in oligopolies

A

Because the firms can’t change price to accommodate costs and demand changes due to the fact that increasing price is detrimental for them as customers will go to cheaper alternatives.

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10
Q

What is the problem with the kinked demand curve in oligopolies

A

It assumes an initial price set in the market

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11
Q

What happens to MR in a kinked demand curve

A

There is a gap at the kink

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12
Q

Calculation for n firms concentration ratios

A

Total sales of n firms / total size of market X 100

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13
Q

collusion

A

When firms make a collective agreement that will reduce competition

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14
Q

What are the advantages of collusion

A
  • Instead of competing against each other firms work together so can set higher prices and maximise profits
  • reduces uncertainty firms face
  • Increases firms market knowledge
  • Firms don’t have to engage in advertisement or competitive price cutting which impacts profits
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15
Q

Disadvantages of collusion

A
  • Illegal so risk of punishment
  • Relies on complete trust in other firm which is impossible
  • May impact a firms own good business model that could profit alone
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16
Q

When does collusion work best and so is most likely

A
  • Firms have similar costs and production methods and are open about them
  • Few firms in the market with high barriers to entry
  • Brand loyalty so customers will remain with each firm
  • One dominant firm that others will follow
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17
Q

Overt Collusion

A

Formal Agreement to collude

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18
Q

Tacit Collusion

A

No Formal Agreement to collude

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19
Q

Cartel

A

Formal collusive agreement in which group of firms will mutually set prices to keep them high, rules will be laid out in a formal document with legal punishments for those who break them

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20
Q

What are the two ways a cartel could operate collusively

A
  • Agree on a price for the goods and then compete freely using non price competition
  • Agree to divide up the market share equally
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21
Q

What is the primary problem with a cartel

A

The more successful the cartel is the bigger the temptation to break it and the firm who breaks it first will be better off

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22
Q

What are the examples of tacit collusion

A
  • Price leadership
  • barometric Firm
  • unwritten rules about advertising or stealing customers
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23
Q

Price leadership

A

One firm may become dominant due to size or costs, this will mean other firms will follow its example as to not start price war, so dominant firm gets to decide the price

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24
Q

Barometric Firm

A

One firm may have a reputation for being good at predicting the next move in the industry, so other firms will follow this one allowing them to set the price

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25
Q

When does non collusive behaviour work best

A
  • If one firm has lower costs than others
  • low barriers to entry
  • products are very similar
  • larger number of firms in the market
26
Q

What is game theory

A

The reactions of one player to a change in strategy from another player, The best strategy a firm can adopt in the case of each different assumption about another firms strategy, interdependent decision making in competitive markets

27
Q

What are the two strategies in game theory

A

Maximin - Two firms work out a strategy which makes the worst possible outcome the least bad

Maximax - Two firms work out a strategy which results in the best possible outcome

28
Q

What is it called when both maximal and maximin strategies come to the same solution

A

Dominant Strategy
–> uncommon in real life

29
Q

Nash Equilibrium

A

Both players have optimised their outcome based on the other players expected decision, so neither player can improve anymore and has any incentive to try and improve

30
Q

What does game theory help explain in oligopolies

A

Explains why prices are stable as firms tend to pursue maximin policy so won’t change prices at all.

31
Q

What is the prisoners dilemma

A

Two prisoners being questioned about a crime would be best off to both stay silent as this would be the Nash equilibrium. However there is temptation to confess as say prisoner a confesses but prisoner b doesn’t they will be better off, so in most cases both prisoners will maximin and both confess to reduce the chance of a bad outcome

32
Q

How does game theory illustrate the first mover advantage in cartels

A

if two firms collude agreeing not to advertise the first firm to break the cartel and advertise will receive huge benefits over the other firm showing why cartels are unstable

33
Q

Why can being first mover not be advantageous

A
  • Other firms will copy very quickly and perhaps then overtake the first mover
  • requires a perfect estimation of demand or how much to advertise
34
Q

What are the types of price competition

A
  • Price wars
  • Predatory Pricing
  • Limit Pricing
35
Q

When do price wars occur

A

When there is little non price competition as brands lack loyalty and consumers a price conscious, similar substitute goods

36
Q

Why are price wars detrimental

A

Firms keep undercutting each other which drives prices down to the point where firms are making a short run loss which is okay but in the long run they will be driven out of business, lowers the whole industries profits

37
Q

What market engages in frequent price wars

A

supermarket

38
Q

Predatory Pricing

A

When an established firm is threatened by a new entrant or a firm that is gaining market share they will set such a low price that they attract most the consumption and the other firm can’t compete and will be driven out the market

39
Q

What’s wrong with predatory pricing

A

Illegal and only works when a firm is big enough to make losses for a short amount of time

40
Q

Limit Pricing

A

To prevent new entrants firms will set the limit price, which is the lowest possible price whilst maintaining normal profit

41
Q

What causes higher limit prices

A

higher barriers to entry

42
Q

problem with limit pricing

A

Firms can’t make the full amount of profit they could, they limit themselves

43
Q

psychological pricing

A

When firms use 99p to make products seem cheaper

44
Q

Market-led pricing

A

Firms look at the prices charged by competitors and charge a price very similar.

45
Q

Price skimming

A

New product is set very high to begin with to keep demand manageable and cover innovation costs and reduced gradually over time to keep demand steady, Apple

46
Q

Penetration pricing

A

New product is set very low to get people to try it and then as demand grows price is put up

47
Q

Why do oligopolies focus on non price competition

A

Prices are stable

48
Q

Types of non price competition

A
  • Advertising
  • Loyalty cards
  • Quality
  • Branding
  • Customer Service
  • Product Development
49
Q

What is the main aim of non price competition

A

Make demand for the product inelastic due to brand loyalty so no matter the price there will always be demand for the product

50
Q

Advertising- non price competition

A

Creates awareness for the product and persuade a customer to buy it, will increase sales and market share, increasing profit in the long run.

51
Q

Loyalty Cards - non price competition

A

Encourage repeat purchases at that company encouraging loyalty and rewarding it, also helps firms to gather customer buying habit data

52
Q

Branding - non price competition

A

A well respected brand will earn peoples trust in its quality and sustainability, can increase customer loyalty and repeat buyers, also make advertising cheaper

53
Q

Quality - non price competition

A

If a firm produces and is known for high quality goods that will encourage repeat purchases and loyalty

54
Q

Problems with non price competition

A
  • Expensive
  • No guarantee of success
  • Hard for small firms
55
Q

Product development - non price competition

A

If a firm can innovate a new product superior to the rest of the market then they will receive an increase in sales

56
Q

Can oligopolies be statically efficient

A

No because they don’t produce at the lowest point on the AC curve and they won’t put price equal to MC

57
Q

Why are oligopoly firms dynamically efficient

A

They can make supernormal profit so have funds to invest and have incentive to because there is competition so they must innovate.

58
Q

Example of oligopoly

A

Network providers

Three - 33%
Vodafone - 29%
O2 - 24%
EE - 27%

All Charge around £10 a month

59
Q

Advantages of an Oligopoly

A
  • Price wars help prices to be lower helping consumer surplus
  • Dynamic efficiency so high R and D spending and lots of innovation
  • Non price competition benefits customer in some cases
  • Dominant firms can exploit economies of scale
  • high supernormal profits can be taxed
60
Q

Disadvantages of an oligopoly

A
  • Collusive behaviour leads to higher prices
  • high concentration ratio limits consumer choice
  • non price competition can distort price mechanism
  • transnational oligopolies avoid tax with schemes
61
Q

Best example of overt collusion

A

2011 9 supermarkets were fixing the price of dairy products