基于G1－变异系数法的矿产资源项目海外投资决策模型研究

通过分析矿业海外投资面临的风险因素，建立了矿业资源海外投资风险评价指标体系，针对当前主流的矿业投资风险评价方法所存在的缺陷，综合运用G1法及变异系数法，构建了基于动态组合赋权的矿业资源海外投资风险评价模型，并进行了实例分析。研究结果表明：所建立的投资决策模型弥补了评价指标单一赋权方法的缺陷，兼顾主、客观2种赋权方法的优点，使赋权既具有专家的经验智慧，又能反映客观条件的新变化，为比较、分析投资风险提供了更为直接的新方法。

Decision-making Model of Mineral Resources Overseas Investment Based on G1-Coefficient of Variation

A risk evaluation index system for mineral resources overseas investment was built up after fully analy- zing the risk factors in mining industry overseas investment.The current popular mining investment risk evaluation methods had their deficiencies for they considered either solely subjective knowledge or only objective information.By integrating G1 method with coefficient of variation method, we presented a risk evaluation model for mineral resources overseas investment named Gl-coefficient of variation,which was based on dynamic combination weighing method.We also carried out an instance analysis and the results show that the model, which can be used for investment decision-making, compensates for the deficiencies of evaluation index single weighing method.Dynamic combination weighing method had the advantages of both subjective weighing method and objective weighing method in that it took into consideration both experience and wisdom of experts and new changes in objective conditions.The established investment decision-making model provided for a more direct way of analyzing and comparing investment risk.