手法を比較

	クールノー競争	シュタッケルベルク競争
分野	ゲーム理論	ゲーム理論
系統	Machine learning	Machine learning
提唱年	1838	1934
提唱者	Augustin-Louis Cournot	Heinrich von Stackelberg
種類	algorithm	algorithm
原典	Cournot, A. A. (1838). Recherches sur les principes mathématiques de la théorie des richesses. L. Hachette.	von Stackelberg, H. (1934). Marktform und Gleichgewicht. Julius Springer.
別名	Quantity Competition, Cournot Equilibrium, Cournot-Nash Equilibrium	Quantity Leadership, Sequential Oligopoly, Stackelberg Equilibrium
関連	4	4
概要	Cournot Competition models oligopolistic markets where firms choose quantities simultaneously, not prices. Originally formulated by Augustin-Louis Cournot in 1838, the model assumes each firm's profit depends on the total market quantity produced. The resulting Cournot-Nash Equilibrium captures the strategic interaction where each firm maximizes profit given competitors' quantities, leading to prices between monopoly and perfect competition levels.	Stackelberg Competition models sequential oligopolistic markets where one firm (the leader) commits to a quantity first, and other firms (followers) observe this choice and respond. Introduced by Heinrich von Stackelberg in 1934, the model captures first-mover advantage in quantity-setting competition. The resulting Stackelberg Equilibrium, found by backward induction, yields the leader higher profit than simultaneous (Cournot) competition.