markets Flashcards
what is 1st-degree price discrimination
when each consumer is charged the maximum price they are willing to pay. This means that all consumer surplus is turned to producer surplus. makes it hard to do in most practices. (e.g bidding)
what is 2nd-degree price discrimination
where lower prices per product are charged for large quantities sold. this encourages larger spending and only turns some of the consumer surpluses into producer (e.g bulk-buying)
what is 3rd-degree price discrimination
where a firm charges different prices for the same product to different segments of the market. this means that sellers can maximise profit as different groups have different elasticites (e.g railcards for under 25’s)
define oligopoly
where a few large firms control the market and have:
* interdependence (actions of one firm affect the other firms)
* differentiated goods
* high barriers to entry and can collude or be competitive to their advantage.
what is tacit collusion
an informal collusion where there is no formal agreement between firms, and so neither lower price as it is better for both to not compete
what is formal collusion
an agreement between firms, called a cartel and is almost always illegal
what reasons are there for a firm in an oligopoly to behave competitively
- lower costs than other firms
- relatively large number of big firms
- similar goods
- low barriers to entry
what reasons are there for a firm in an oligopoly to behave collusively
- firms share similar costs
- relatively few firms (can see what other firms are doing)
- high brand loyalty
- high barriers to entry
define allocative efficiency
- where the price of a good is equal to the price consumers want to pay for it.
- when mc=ar
define productive efficiency
- when mc=mr
- when average costs are lowest
define dynamic efficiency
using supernormal profit or loans to innovate or invent product, or lowering cost of production, improving efficiency in the long run
what is x-inefficiency
when there is unnecessary costs or waste (e/g organisational slack