1Review of China's coal economy operation situation in 2018 and future market outlookLiang Dunshi4-112Measurement of price discovery efficiency in China's thermal coal futures marketZou Shaohui, Ma Tingyan, Tian Beicheng12-193Resarch on the influence of monetary policy and debt structure on non-efficiency investment of coal enterprisesFeng Taozhu, Wang Ting20-254Research on influencing factors of coal development efficiency evaluation based on DEMATELLiu Ying, Qi Hongliang, Ning Yuncai26-305Research on the impact of foreign direct investment on energy consumption in Shaanxi provinceChen Xingping, Zou Jia31-356Research on the formation path of coal enterprise innovation alliance network based on NK modelZhao Hongmei, Liu Danqi36-417Economic analysis of coal and electricity based on market simulation——Taking Jilin province as an exampleLiu Yuanxin, Chen Jie, Yuan Jiahai42-478Research on the performance change of coal listed enterprises before and after the implementation of debt-to-equityZhang Tian, Peng Yiting48-529Practice and exploration of high-quality development of state-owned large coal enterprises under the new situationSun Ye, Liu Yingjie53-5810Practice and exploration of utilization with sewage sludge resources in coal chemical enterprisesSun Zongli59-6211Research on the long-term mechanism of healthy development with coal industryLYU Yi63-6812Model selection of centralized management of bills in coal enterprises under the new situationXie Chi69-7313Research on the countermeasures and construction of management and control system of clean coal production based on clean productionWang Xiangming74-7814Research on the cost reduction and benefit increase of Yankuang Group under the background of supply-side reformTian Defeng, Rong Hao79-8415Analysis on the financial development strategy of coal cnterprises during the 13th Five-Year Plan periodLiu Juntao85-88 