3.4 market structure Flashcards
what is allocative efficency?
This is achieved when resources are used to produce goods and services which consumers want and value most highly and social welfare is maximised. It will occur when the value to society from consumption is equal to the marginal cost of production, where P=MC.
what is productive efficency?
A firm has productive efficiency when its products are produced at the lowest average cost so the fewest resources are used to produce each product. The minimum resources are used to produce the maximum output.
what is dynamic efficency?
This is achieved when resources are allocated efficiently over time. It is concerned with investment, which brings new products and new production
techniques.
what is static efficency?
efficiency at a set point in time. Allocative and productive efficiency are examples of static efficiency
which type of markets are dynamically efficient?
Dynamic efficiency will be achieved in markets where competition encourages innovation but where there are differences in products and copyright/patent laws.
why are copyright and patents necessary for a market to be dynamically efficent?
it encourages investment into research and development and it prevents a third party gaining positive production externality from the money you spent. as a result, only your company gets the productivity boost
what is x-inefficency?
If a firm fails to minimize its average costs at a given level of output, it is X-inefficient and there is organizational slack. This is a specific type of productive inefficiency as it occurs when they fail to minimize their cost for that specific output.
how is x inefficiency shown on a graph?
it is shown by the actual average cost curve being above the potential average cost curve
what are the 4 main characteristics of an oligopoly?
1) products are generally differentiated; 2) supply in the
industry must be concentrated in the hands of a relatively small number of firms, meaning
there is a high concentration ratio; 3) firms must be interdependent (so the actions of one
firm will directly affect another); 4) there are barriers to entry.
why is there a kinked demand curve for the oligopoly?
it assumes the original price is on the kink. if a firm increases its price, the others will stay at original price due to the fact they will have a comparatively lower price making them more competitive. however if a firm chooses to decrease their price, other firms will follow since they want to remain competitive. as a result above the original price the demand curve is elastic, and below original price the demand curve is inelastic
what is the result of the kinked demand curve?
the prices remain stable due to the fact that a rise in prices will decrease profit as consumers will switch to other firms, and decreasing the price will just lead to a fall in revenue for all firms. so there is no incentive to change
what is the n concentration ratio?
the percentage of the total market that a particular number of firms have.
what is the formula for the n concentration ratio?
(total sales of n firms x100) / (total size of market)
what is collusion?
Collusion is when firms make collective agreements that reduce competition.
what is the name of the market structure where the oligopoly does not collude?
When firms don’t collude, this is a competitive oligopoly
what UK industry is suspected of colluding?
The UK energy market is an oligopoly that is
suspected of collusion.
what type of firms will not want to collude and why?
A firm with a strong business model and something that sets it apart from other firms will not want to collude if they feel they can increase market share and/or charge higher prices than competitors.
when does collusion work best?
Collusion between firms works best when: there are a few firms which are all well known to each other; the firms are not secretive about costs and production methods and the costs and production methods are similar; they produce similar products; there is a dominant firm which the others are happy to follow; the market is relatively stable; and there are high barriers to entry.
what is the effect of collusion?
it maximizes industry profits. Collusion reduces the uncertainty firms face and reduces the fear of engaging in competitive price cutting or advertising, which will reduce industry profits.
what is overt collusion?
Overt collusion is when firms come to a formal agreement
what is tacit collusion?
tacit collusion means there is no formal agreement.
what is a cartel?
A formal collusive agreement. a group of firms who enter into agreement to mutually set prices. The rules will be laid out in a formal document which may be legally enforced and fines will be charged for firms who break these rules.
what are the two ways a cartel can operate?
1) agree on a price for the goods and then compete freely using non-price competition to maximise their market share; or 2) agree to divide up the market according to the present market share of each business.
what is the issue with cartels?
The problem with any cartel is that no firm is likely to set their prices/output at the level they would not ideally choose and there is constant temptation to break the cartel. The more successful the cartel, the greater the incentive to break it; it is important for firms to be the first to break it and not the firm who is left to deal with the after effects.