Research On The Impact Of Safety Investment On Economic Benefits Of Coal Enterprises

As a key input factor to ensure China's economic growth,coal's orderly development plays an important role,and the safety of production chain is the only way for the stable development of the industry.The safety guarantee of production is directly provided by the investment and effective implementation of safety funds.As a high-risk industry,the coal industry has a harsh working environment,tough working conditions,backward safety technology,and endless hidden danger.In the process of development,blind pursuit of efficiency and neglect of safety investment is a common problem in China's coal enterprises and the underlying cause of the accidents.The 19 th National Congress of the Communist Party of China mentioned in the overall plan to promote the reform and development of the safe production field that "improving the long-term mechanism for safe investment and strengthening the study of safe production economic policies" is an important measure to stabilize the safety of coal mine production.Therefore,it is of great significance to strengthen the position of safety investment and increase the exploration of the relationship between safety investment and economic benefits.This thesis uses relevant theories to analyze the effect of safety investment on economic benefits in coal enterprise and determines that it is not a simple linear relationship and forms an analytical framework with safety investment scale,structure and system as the entry point to reveal the present situation of safety investment shortage in China,and then analyze economic dilemma of China's coal enterprises based on the overall development of the coal industry to the development of individual enterprises.On this basis,the panel threshold regression model is constructed from the micro level.The economic benefits of coal enterprises are the explanatory variables,and the safety investment is thecore explanatory variable.Coal production,labor,labor productivity,management level and R&D investment are used as intermediate variables.Using the threshold effect to test the mediating variables that cause nonlinear relationship between safety investment and economic benefits,and use them as threshold variables to carry out threshold regression,measure the influence mechanism of safety investment on enterprise benefits under different threshold conditions.Thus this thesis puts forward the strategy to maximize the economic benefits of the safety investment in coal enterprises based on the results of theoretical analysis and empirical research.According to the research in this thesis,it is found that in the process of threshold effect test,coal output,labor productivity,and R&D investment show significant threshold effects in the impact of safety investment on economic benefits of coal enterprise.Among them,with the increase of coal output,the effect of safety investment on the growth of economic benefits tends to weaken;when the labor productivity(i.e.the ratio of coal output to the total number of employees in the enterprise)increases continuously,the economic benefits brought by the safety investment also increase significantly;when the R&D investment continues to increase,the impact of safety investment on economic benefits is still positively correlated,which is weaker than the first stage.In terms of the current situation of safety investment of coal enterprises,in the short term,coal enterprises can still positively promote the economic growth by moderately increasing the safety investment.The innovation points of this thesis are as follows: select the factors affecting the economic benefits of coal enterprises as the intermediate variables,and then use the threshold effect to test the threshold variables that cause the nonlinear relationship between safety investment and economic benefits.In this way,the errors caused by the subjective division of threshold variables and threshold values can be effectively avoided.The bias makes the result moreobjective and effective;in addition,under the threshold interval of different threshold variables,the differential influence mechanism of safety investment on economic benefits is more detailed than the previous analysis of individual discussions.So that enterprises can better choose the corresponding mechanism to adapt to the market based on their actual situation.