At real GDP growth rates above the real interest rate on government debt (estimated by the Social Security trustees at 2.90% for the federal government, state interest rates are comparable), the PVIH of future GDP is infinity.

FORBES: Kansas Desperately Needs Fundamental Tax Reform

The elderly, many of whom get by on a combination of Social Security and investment income, are suffering more than any other group from our current low-interest rate fiscal environment.

FORBES: Hair Color and Money Habits