Study On The Operating Efficiency Of Listed Companies In China's Nonferrous Metals Mining And Selection Industry

Under the background of macro-economic environment and state policies,the development mode of non-ferrous metal mining and selection industry in China is facing transformation.In 2018,affected by market and environment,the profits of the non-ferrous metal industry as a whole are generally declining,and the operating difficulties of enterprises become even more violent.Therefore,it is more urgent to find methods to improve the efficiency of enterprises.Firstly,the carding existing literature of the efficiency analysis and the efficiency analysis and evaluation results of different evaluation methods and industries are carefully sorted out.Meanwhile,the status quo of the industry and enterprises is studied.Secondly,DEA data envelopment analysis method was used to study 20 listed companies of nonferrous metals mining and selection industry in China.Combining the results of static mode measurement and dynamic Malmquist index,and as a standard to analyze the operating efficiency of its operating efficiency to do research.The results indicate that the operating efficiency of the samples was generally poor.From the analysis of specific efficiency indicators of operating efficiency,the low average of sample comprehensive efficiency indicates that the waste of investment is increasingly serious.After 2015,conditions were getting better,and the distance of study samples shortened a lot.The standard of pure technical efficiency is still not good and even not stable,which shows business and management level of volatility.The scale efficiency shows that more than half of the sample enterprises have reached or are close to the optimal scale,and the scale reward index remains unchanged or decreases,so it is not suitable to continuously improve the efficiency by expanding the scale.From the dynamic index alteration of overall efficiency,efficiency shows the state of fluctuating.Both dynamic and static analysis show that the sample efficiency is rising.Third,after determine the value of efficiency,equity concentration,asset size,staff size,asset dexterity,capital composition,the working ability and the enterprise maturity seven indicators.The regression results of tobit model display that except for fixed assets ratio,asset-liability ratio and the maturity found no obvious relationship to operating efficiency.The degree of equity concentration has a obvious positive correlation to its efficiency.Total assets and its velocity is also present significantly positive correlation to operating efficiency.Concentrating ownership,larger total assets and improvement of total assets turnover ratio are conducive to the improvement of management level.The number of the employees has negative relationship to operating efficiency.Too many employees cannot enhance the operating efficiency,but will yield extra burden on the contrary.The ultimatums indicates that the operating efficiency of nonferrous metal mining enterprises is not high and stable.We could enhance our own management level and ownership structure.Ultimately,enhance operating capacity,rational allocation of assets.From a scientific point to control over the scope of assets and personnel,to enhance enterprise efficiency,to get a healthy,efficient and green development for the time to come.