差异化产品竞争的战略性补贴政策

Strategic Subsidy Policy in a Differentiated Duopoly

一个本国企业和一个外国企业在本国市场进行差异化产品的古诺竞争和伯特兰德竞争。本国政府和外国政府展开对各自企业的战略性补贴政策的竞争。均衡的补贴政策对两国来说是非对称的,而且古诺竞争模式下的补贴水平高于伯特兰德竞争模式下的补贴水平。产品差异化对补贴水平具有重大影响。消费者剩余在古诺竞争模式下更高,而社会福利正好相反,在伯特兰德竞争模式下更高。

A home firm and a foreign firm compete in the home market under Cournot competition or Bertrand competition.The equilibrium policy is asymmetric for the two competing countries.The equilibrium policy level is higher under Cournot competition than under Bertrand competition.Product differentiation has a substantial impact on the equilibrium policy level.Consumer surplus is higher in the Cournot case than in the Bertrand case,but social welfare shows the contrary result.