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Global economics WGU
chapter 14 Four types of MArket Structre
Question | Answer |
---|---|
four types of market structure | monopoly, oligopoly, monopolistic competition, perfect competition |
monopoly (one firm) examples | tap water, cable tv |
oligopoly (a few firms) examples | tennis balls, cigarettes |
monopolistic competition (differential products) examples | novels, movies |
perfect competition (identical products) examples | wheat, milk |
monopoly has | one firm |
oligopoly has | a few firms |
monopolistic competition has | differential products |
perfect competition has | identical products |
competitive market is a | market with many buyers and sellers |
competitive market buyers and sellers | are price takers |
competitive market enter and exit the market | easily |
What type of products are traded on the competitive market? | homogeneous |
average revenue formula | TR/Q (PxQ)/Q |
marginal revenue | changeTR/change (PxQ) |
Q means | output |
quantity goes up | MR > MC |
quantity goes down | MC > MR |
perfect quantity | MR = MC |
in the short run shut down if TR | is less than VC |
in the short run shut down if Price | is less than ATC |
(P - ATC) x Q | equals Profit |
profit calculation | (TR / Q - TC / Q) x Q |
in the long run if market is profitable | enter |
in the long run if market is taking a loss | exit |