Oligopoly Flashcards
Oligopoly
small group of firms can influence each other
Cournot
Stackelberg
Bertrand
Cournot - simultaneously choose quantities
Stackelberg - firms sequentially choose quantities: leader and follower
Bertrand - firms simultaneously choose prices
Cournot
explains how firms behave if they simultaneously choose how much they produce. We look at 2 firms selling identical products with identical costs: Duopoly
Cournot
Stackelberg sequential choice
2 firms, one firm can choose its quantity before the other firm e.g.one enters market first. Whoever chooses quantity first is stackelberg leader. Based on leaders choice the other firm chooses its quantity - BR. Leader predicts what the follow will do and acts. Chooses its output to manipulate the follower benefiting at the followers expense. The problem can be solved by backward induction: