煤炭企业博弈行为与产业集中度—基于斯塔克尔伯格模型的研究

摘要

运用改良的斯塔克尔伯格模型探讨了煤炭企业行为与煤炭产业集中度的关系,发现煤炭产业市场进入门槛以及大型煤炭企业与小型煤炭企业的边际生产成本直接决定了煤炭产业的集中度,我国煤炭产业进入壁垒过低,导致小型煤炭企业有利可图,大型煤炭企业与小型煤炭企业之间的生产成本差异,是造成我国煤炭产业集中度偏低的重要原因.%The paper uses the modified Stackelberg model to study the relationship between behaviors of the coal enterprises and the concentration of the coal industry and finds that the threshold of the coal market and the marginal production cost of the coal enterprises are direct determinants of the degree of concentration of the coal industry and the rather low degree of concentration of the coal industry of China is mainly caused by low entry barrier of the coal industry of China and the different between the production cost of large-scale and small-scale coal enterprises.