Rating And Pricing Mechanism Of Coal Mine Work Safety Liability Insurance In China

Work safety liability insurance is mandatory in high-risk industries,and it has the function of accident prevention.Determining a reasonable,fair and adequate rate for coal mine work safety liability insurance,is the key factor for expansion and sustainable development of coal mine work safety liability insurance.Focusing on the key and difficult issues of coal mine work safety liability insurance rating in China,this paper studies the rating model and pricing mechanism of coal mine work safety liability insurance in China,in order to enrich the rating methods of coal mine work safety liability insurance in China,and provide scientific basis for the formulation and improvement of relevant policies.The major factors that influence rating of work safety liability insurance are analysed from seven aspects,such as insurance nature,coverage,policy terms,accident prevention technical services,implement mode,basic data,the condition of the insured risks,which determine the objectives and positioning of work safety liability insurance rating,and also determine the actuarial method,actuarial assumptions and actuarial model.According to the principle of non-life insurance actuarial calculation,the base rate and floating rate of coal mine work safety liability insurance are determined by GAMLSS.Based on data from large sample questionnaire online and coal mine accident data by region in 2009-2019,this paper builds GAMLSS model based on zero expansion negative binomial distribution,estimates the loss frequency by RS algorithm,estimates loss rate by expected value model,gets coal mine work safety liability insurance rate table based on 10 risk factors involving three types.Model shows that the loss frequency of coal mine work safety liability insurance has obvious characteristics of discrete,expansion of zero poisson distribution.The current coal mine security responsibility risks set rates are normally used GLM models do not fully recognize the features of premium rate making there is a deviation,lead to GAMLSS can correct the deviation,make the coal mine security responsibility insurance rates set more accurate.The result of determining the premium rate is compared with the current premium rate level,and it is concluded that the current premium rate level of coal mine safety liability insurance is generally high except for some regions.Raising the insurance rate is the key to reduce the rate level,so the coal mine safety liability insurance needs to be expanded.The reasonable floating range of coal mine safety liability insurance rate is 0.5 ～ 3.In order to solve the key and difficult point for coal mine security responsibility insurance rates set problems,suggested to reduce the cost of coal mine security responsibility risks burden,a coal mine security responsibility risks policy of incentive and constraint,lead mine has insured as soon as possible related to the safety in production of other risk adjustment for principal risks,establishing the national coal mine security responsibility risk information management platform,to set up the coal mine security risks third-party release rates mechanism,improve the level of fees set and ability.Based on the risk theory and the man-machine-environment-management system theory,a coal mine safety risk assessment model is established,which is applicable to the determination of the safety risk rate,and a floating scheme of the coal mine safety risk rate is put forward.From the possibility of coal mine accident and the severity of coal mine accident,the evaluation index system of coal mine safety risk is constructed.By means of Delphi method and analytic hierarchy process(AHP),the evaluation value of coal mine safety risk is determined by quantitative analysis of some coal mines.According to the size of the coal mine safety risk assessment value,the coal mine safety risk is divided into 5 grades.The higher the grade,the higher the floating coefficient of the rate will be,and the higher the floating rate will be.Conversely,the lower the floating rate;According to the different levels of coal mine safety risk,the adjustment coefficient of coal mine safety risk level keeps a floating range of 0.5-3.The research conclusion is helpful to solve the problems such as the difficulty in quantifying the adjustment factors of coal mine safety liability insurance premium rate,the excessive number of them,and the insufficient understanding of insurance companies in underwriting coal mine safety risks,so as to make the insurance premium rate better reflect the real-time safety situation of coal mine insurance.Based on the theory of planned behavior and the theory of consumer behavior,the binary Probit discrete selection model for the decision-making of coal mine investment security liability insurance was established,and the influence mechanism of the market price of coal mine safety liability insurance was studied.Application of large sample questionnaire survey data,through the test of goodness of fit and to more fully empirically of several coal mine,are established based on the Probit of coal mine security responsibility risk decision-making model,factors affecting coal mine security principal risks for the first time renewal decision-making model,factors affecting coal mine security responsibility risk decision-making model of influence factors will determine the coal mine security liability risks,insurance for the first time,renewal of15,14,six major decision variables and the variables influence degree of decision making.The results of the model show that the explanatory variables of the three models have good consistency.Regardless of the first insurance or the renewal of insurance,the coal mine pays much attention to the policy factors and the risk compensation ability of safety liability insurance products,and depends on the awareness and importance of the decision-makers to safety liability insurance;The psychology of the comparison between the marketing efforts of the insurance company and the coal mine is more important when the insurance is first insured,but these factors become less significant when the insurance is renewed.The conclusion is helpful to clarify the insurance preference and price sensitivity of coal mine safety liability insurance,and provides a quantitative basis for optimizing the design and market pricing of coal mine safety liability insurance products and formulating and improving relevant policies.Through further analysis of the model results,it can be found that the coal mine pays the most attention to the risk compensation function of safety liability insurance and expects the accident prevention function.However,since the accident prevention function of safety liability insurance has not been brought into play,the coal mine has not formed the experience,comparison and evaluation of this service.The insurance behavior of coal mine safety liability insurance is highly dependent on the national policy;The consumer market of safety and liability insurance products is not mature enough.In view of these problems,the countermeasures are discussed,and it is suggested that the emergency management departments at all levels and the competent departments of the industry should take the information management platform of safety liability insurance as a powerful supervision tool,strengthen the supervision of technical services for accident prevention,and accelerate the cultivation of technical service experts and institutions for accident prevention.Give play to the accident prevention function of coal mine safety liability insurance;The government strengthened the implementation and support of coal mine safety liability insurance;Establish the market survival of the fittest mechanism guided by the technical service effect of accident prevention;Improve safety liability insurance product design,improve the level of insurance services,claims services,accident prevention technical services,gradually cultivate the coal mine to safety liability insurance consumer psychology and consumption habits,so that security liability insurance investment from the external force into the internal need,so that the safety liability insurance market into a sustainable development of the virtuous cycle.