Arrangement of the concrete system is the gaming result of the different interestgroups. Government and business enterprises are two most important gaming bodies with duty onsocial pension insurance. The performance of current gaming concentrates on below: governmentmakes use of its regular power of constituting rule on social pension insurance, to pass on concealeddebt of pension insurance obligation to business enterprises; the lighter burden business enterprises inproviding for aged prefer reversed choice, reluctance to attend the current social pension insurancesystem; the business enterpr...