多寡头古诺竞争与斯塔尔博格竞争的对比研究

Comparative Study on Multi-Cournot Competition Model and Multi-Stackelberg Competition Model

对以产量为竞争策略的多寡头古诺竞争与多寡头斯塔尔博格竞争进行对比研究.分析表明,当寡头数目在2与12之间时,古诺利润大于斯塔尔博格后动利润:此时寡头若采取积极的市场进入策略,即便不能获得斯塔尔博格先动优势,但其通过古诺竞争获得的利润依然大于斯塔尔博格后动利润;当寡头数目大于等于13时,古诺利润将小于斯塔尔博格后动利润:此时寡头如果采取积极的市场进入策略,一旦不能获得斯塔尔博格先动优势而导致古诺竞争时,其利润甚至小于作为斯塔尔博格跟随者的后动利润.

Muhi-Coumot competition model and Muhi-Stackelberg competition model are studied comparatively, Analysis shows that when the number of oligopoly firms is between 2 and 12, the profit in muhi-Cournot competition would be higher than the profit of followers in muhi-Stackelberg competition. If oligarch adopts active competition strategy, it would obtain higher profit through multi-Cournot competition, even it loses the chance to be the leader in multi-Stackelberg competition. When the number of oligopoly firms is equal or higher than 13, the profit in multi- Coumot competition would be lower than the profit of followers in muhi-Stackelberg competition. If oligarch adopts active competition strategy, it would obtain lower profit through multi-Coumot competition , while loses the chance to be the leader in multi-Stackelberg competition.