基于协整关系和格兰杰因果检验,对煤炭行业集中度与经济增长的影响进行了实证研究。研究结论表明:煤炭行业集中度和经济增长存在着长期均衡关系,并且双方存在着互为因果关系,进而为提高煤炭行业集中度提供了实证依据。 Based on the co-integration relationship and Granger causality test, this paper conducts empirical research on the influence of coal industry concentration and economic growth. The conclusion of the study shows that there is a long-term equilibrium relationship between the concentration of the coal industry and economic growth, and the two parties have causal relationship with each other, thus providing an empirical basis for raising the concentration of the coal industry.