经济剩余的博弈模型分析及应用——以古诺模型和斯坦博格模型为例

Analyzing and Applying Economic Surplus of Game Models——Examples with Cournot Model and Stackelberg Model

对古诺模型与不同市场结构下的经济剩余进行比较,认为古诺均衡有效增加了私有物品的经济剩余,而对公共物品经济剩余的增加效率较低;结合斯坦博格模型进行的进一步比较和分析,说明了优先进行技术创新的企业不仅可以获得“先行优势”,而且增加了经济剩余。因此政府应对私人和公共物品中采用不同的政策和措施以促进经济剩余的增加。

Through comparing the economic surplus of Cournot Model with that of different structures of markets,the paper points out that Cournot equilibrium is of low efficiency for public goods but high efficiency for private goods in increasing economic surplus. Through further comparing and analying economic surplus,it is shown that the first enterprises with technology innovation will get “First Advantage” and increase economic surplus. As a result, government should take different policies and measures in private and public goods to increase economic surplus.