Investment Research On The Impact Of Social Insurance

With the rapid development of economy and improvement of people's material andcultural living standard, social pension insurance system becomes more and moreimportant for steady development of society and economy. The live guarantee of retirepeople become a more urgent important problem that modern social needs to solve. Inrecent years, the system has been reformed and great improvement has been made.However, it has to be faced that our social pension system cannot afford to pay all thepensions in the future. The current problems lie in the disorderly fund management,inefficient investment and the lack of the supervision and efficient ways to avoidinvestment risks and get good returns. These problems seriously affect the ability forpension fund to pay, and make the speed of payment acceleration is much faster thanthat of the collection. The problems will affect the development of national economydevelopment and people's effort of constructing harmonious society. In which, it isnotable that investment interest rate have important and deep influence for socialpension insurance, especially in long-term fund running stage. Therefore, it issignificant to study on investment and supervision of the pension fund.Using the basic concepts, the basic methods, and basic theory related to the socialinsurance actuarial, According to the characteristic of the social insurance, The actuarialmodel of the social insurance are discussed, and mainly the influence of investmentinterest rate of the social insurance fund is estimated, described and analyzed. From theactuarial view, a relatively systematic analysis to the model of the social insurance ismade. In fact, by analyzing the effect of the change of pension fund's investment returnson the changes of the actuarial present value and expected pension actuarial presentvalues, the thesis sets up the relevant actuarial Models and studies the impact of theinvestment rates on social insurance in order to provide a valuable reference for socialpension improvement. The main contents in this thesis are as follows:1. By setting up the corresponding mathematical models, study the impact of investmentreturn rates, which are very important factors of uncertainty in the actuarial model, onthe social insurance such as the actuarial present value and expected retirement pension actuarial present value in order to draw valuable conclusions and provide a theoreticalreference for improving the social insurance fund's ability to resist risks.2. Using the way of computer simulation, the reasonableness of the models are assessedand the way of further improvement is provided.