A Fuzzy Comprehensive Evaluation Model on the Risks of Coal Enterprises’ Trans-Regional Expansion

An index system was set up in this paper which included two secondary indexes, external risk and internal risk, 9 third indexes and 29 fourth ones on the basis of coal enterprises’ expansion situations. The reasonable weights in this index system were calculated by analytic hierarchy process and the fuzzy comprehensive evaluation model was set up. Then the expansion risk of a coal enterprise was evaluated by this model.