10) monopolistic competition Flashcards
define monopolistic competition
a market that shares some characteristics of monopoly and some of perfect competition
define product differentiation
a strategy firms adopt that marks their product as being different from their competitors’
characteristics: small/large number of firms?
a large number of firms
what does a large number of firms mean in terms of changes in price?
• A price change by one firm will have negligible effects on demand for rivals’ products because market share of each firm is low
how many firms?
no dominant firms, No firm has significantly more power than others
are there barriers to entry?
No (or low) barriers to entry
So if incumbent firms are making SNP, new entrants will be attracted and try to make their product slightly different (product differentiation)
are the goods homogenous or heterogenous?
Product differentiation
• Firms’ products are slightly different to competitors’ in some way
why is there brand loyalty?
Consumers perceive non-price differences among products leading to brand loyalty
how do firms maintain brand loyalty?
• Firms advertise to maintain brand loyalty
are there substitutes?
• Products in the market are fairly close substitutes
is demand price elastic or inelastic because goods are fairly close substitutes
• So demand is usually relatively price elastic (and more elastic the smaller the differences between products - and the better substitutes they are)
why is there a downward sloping demand curve?
A reduction in price would increase quantity demanded, so firms have some control over price. This is due to the price making power afforded by product differentiation
monopolistic competition, short run analysis: what are their objectives?
run. Firms are assumed to profit maximise, so produce at MC=MR leading to output Qo at a unit cost of ACo and price Po.
Po-ACo is the supernormal profit per unit, so the shaded rectangle Qox (Po-ACo) is the total SNP.
monopolistic competition, short run analysis: barriers to entry
Due to low barriers to entry, this SNP will attract new firms which will produce differentiated products; so this supernormal profit can only be earned in the short run.
monopolistic competition, long run analysis: why do the demand curves shift left?
Firms were attracted by the supernormal profits made by incumbent firms and were able to enter the market due to low barriers to entry. These new entrants cause established firms’ demand curves to Shift to the left as market demand is split between more firms.