Pay as you go, pay as you go. Throughout the world, the financing mode of endowment insurance can be divided into two categories: pay-as-you-go and fund system. Pay-as-you-go means that social insurance relies entirely on current income to meet current expenses, and does not reserve funds for insurance expenses in future years. The characteristic of the complete fund is that the payment level of the insured can remain stable for a long time, thus avoiding the constant adjustment of the payment level with the increase of insurance expenditure.