. >> reporter: it o takatosi says japann f faces a futuree in whi more people are receiving social securityng into the system. >> many japanese e elderly, inclcluding myself, are working fine around retirement age, so they should be allowed to continue to work, putting into the social security contributions, and getting bigger social security benefits. >> reporter: ito adds, japan will have to re-evaluate its traditional lifetime employment system in order to increase labor market fluidity and productivity. >> a worker r has to be transferrable to other companies. companies should pay for the job skills and performances,s, rath than length ofof the service. veryry large retirement severan pay by the company is not the institution n that we shouould in this 21st-century economy. >> reporter: he says the tax system needs to be changed to discourage companies from doing so. instead, these funds should be allocated to younger employees. >> people need money when they're young, and they can use those money for, you know, having families or training themselves for higher skills. so just changing