(For previous posts in this series, see here.)
In deciding whether Social Security is in trouble or not, it is important to bear in mind different measures. Let us start by assuming that no changes at all are made in the system and that current projections for future demographics hold for the next fifty years. This is a very big ‘if’ indeed, but a starting point for analysis. The alarmists look at the year in which projected Social Security benefits paid out in that year exceed the revenues from the payroll tax that same year. That is expected to occur around 2018. But that alone does not constitute a crisis. Social Security has been running a surplus all these years so by that time the trust fund will have about 3.7 trillion dollars in reserve. This fund earns interest and the interest can be used to supplement the payouts following the year when the expenditures start to exceed the revenues. At a 4.5% interest rate on the US treasury bonds, the accumulated trust fund can generate an annual growth of about $170 billion due to interest alone. Using this interest to pay benefits can be done for some time during which the size of the trust fund will remain the same or will still be increasing, though more slowly.
