Econ Flashcards
(157 cards)
What is defined as short-run?
Timeframe when some factors are fixed
What is defined to as long-run?
Timeframe when all factors are variable
When should firm operate in perfect market?
When AR>=ATC
When should firm operate in short-run only in perfect market?
When AR>=AVC but AR<ATC
When should firm firm shut-down in perfect market?
AR<AVC
When is break-even point?
TR=TC
When should firm operate in short-term market in imperfect environment?
TC>TR>TVC
When should firm shut down in imperfect market?
TR<TVC
Why do we compare averages for perfect and total costs for imperfect markets?
Because price is not equal to marginal revenues
What are conditions of the perfect market?
many firms, very low barriers of entry, very good substitutes, competes on price only, none pricing power
What are conditions of the monopolistic competition?
many firms, low barriers of entry, goods have substitutes but are differentiated, competes on price, makreting and features, some pricing power
What are conditions of the oligopoly?
There are few firms in the market, high barriers of entry, goods have substitutes but are differentiated, competes on price, marketing and festures, some to significant pricing power
What are conditions on monopoly?
There is single firm, very high barriers of entry, no good substitutes, competes on adversiting, have significant pricing power
What is long-term equilibirium of monopolistic competition?
P=ATC
What is the most significant cost for monopolists?
Marketing costs
What is a distinct feature of oligopoly?
They are interdependent
What is kinked demand theory?
Competitors are likely to match the price decrease, but not the price increase
How does demand elasticity reflected in the kinked demand theory?
It is more elastic on the left and less elastic on the right
What is Cornot duopoly model?
Two firms with identical MC curves will chose their price based on the price of the other firm in the previous periods
What is the assumption of Cournot duopoly model?
Prices would not change and firms set prices simultaneously
What is equilibrium of duopoly model?
Sell the same quantity, as the price would be less than a single monopolist would charge, but greater under perfect competition
What is Stackelberg model?
Pricing decisions of the firms are based sequentially and the leader gets higher price and more of total profits
What is Nash equilibrium?
Choices of firms are that no other choice would make any firm better off.
What is collusion?
Joint agreement to charge given price or take speficit output.