Budget Deficit Vexes Iran’s Pension Funds

According to global standards, three to five people should be employed against every retiree. In other words, the pension of a retired person is paid from the premium payments of three to five people. 
Given the life expectancy, pension funds will be able to pay pension as per the first condition if those who retire after 30 years live for 20 years. Therefore, there are two prerequisites for pension funds: first, people work for 30 years and receive pension for nearly 20 years, and second, between three and five people should be working for each retired person. Of course, these numbers are not exact.