Chapter 15- Perfect Competition Flashcards
Perfect competition
Monopoly
Monopolistic competition
Oligopoly
4 market types
Exists when many firms sell an identical product to buyers
No restrictions on entry or exit from the market
Established firms have no advantage over new firms
Sellers and buyers are well informed about prices
Perfect Competition
A market for a good or service that has no close substitutes
There is one supplier that is protected from competition by a barrier that prevents the entry of new firms
Monopoly
Many firms compete by making similar, but slightly different products
Monopolistic competition
A market in which a small number of firms compete
Oligopoly
A firm that cannot influence the price of the good or service that it produces
The firm in perfect competition is a price taker firm
Price taker firm
Change in total revenue that results from a one unit increase in the quantity sold
Marginal revenue
As output increases, total revenue increases, total cost increases too
Total cost increases faster than total revenue because of decreasing marginal returns
As output increases, total revenue increases, total cost increases too
Total cost increases faster than total revenue because of decreasing marginal returns
Find the profit maximizing output by using a firms’s total revenue and total cost curves
Profit is maximized at the output level when total revenue exceeds total cost by the largest amount
When difference between total revenue and total cost is greatest, profit is maximized
Profit maximizing output
Marginal cost increases if output increases
Profit is maximized when marginal revenue equals marginal cost
Trends
If a firm shuts down temporarily, it incurs an economic loss equal to total fixed cost
If firm produces some output, it incurs an economic loss equal to
TFC+TVC- total revenue
If firm shuts down
The point at which Average Variable Cost=marginal revenue
Where AVC curve and marginal revenue line meet on the graph
Loss= total fixed cost
At prices below the shutdown point, firms produce nothing
At prices above the shutdown point, firms produce along the Marginal Cost curve
Shutdown point
At the shutdown price, it is perfectly elastic
Above the shutdown price, it slopes upward
The market supply curve
When market supply and demand curves meet, they meet at a market equilibrium and establish a market price
Market equilibrium
If more firms enter a market, supply increases and the supply curve shifts rightward
If firms exit a market, supply decreases and the supply curve shifts leftward
Firms exit and enter