From Marketwatch:
When Alan Greenspan and his committee supposedly “fixed” Social Security’s funding crisis in the early 1980s, the program was supposed to remain solvent well into the 2050s.
Instead, the trust fund is scheduled to run out of money in 2034 — decades ahead of schedule. What went wrong?
Stephen Goss, who has been the Social Security Administration’s chief actuary for more than 20 years, posed this question recently during a retirement conference hosted by the Harkin Institute. And his answer may surprise some people.
Sure, birthrates have collapsed from the heady days of the baby boom, he said, and that trend hasn’t helped. But it’s nothing new: The big fall started in 1965, nearly 20 years before the Greenspan Commission.
And yes, people are living longer than they used to. But that isn’t a surprise, he added —actually, the decline in mortality is pretty much in line with expectations. The forecasts have proven “remarkably accurate,” he said.
So what changed? In a word: inequality.
Goss argued that rising income inequality — with fast growth at the top and slow growth everywhere else — is the mystery ingredient that has thrown Social Security’s finances into turmoil earlier than planned. And the big change took place in the 17 years after the Greenspan Commission made its projection, from 1983 to 2000, he said.
During that time, incomes for the best-paid 6% of earners rose by 62% in real, inflation-adjusted terms, he said. For the other 94%, incomes rose by just 17%.
The net result was that the lion’s share of U.S. income growth was above the Social Security cap, and wasn’t subject to the program’s payroll taxes. The percentage of incomes subject to the program’s tax collapsed from around 90% in the early 1980s to barely 82% by the turn of the millennium. …