Distributional Effects of Price Indexing Social Security Benefits

This policy brief compares five options (four progressive price indexing and one full price indexing option) set forth by the Social Security Advisory Board to index initial benefits to price growth. It examines the distribution of benefits of Social Security beneficiaries aged 62 or older in 2030, 2050, and 2070 using Modeling Income in the Near Term (MINT) model projections. The brief finds that the full price indexing option Shield 0% would more than achieve long-term solvency by reducing benefits by about 35 percent in 2070 and would increase the aged poverty rate compared with scheduled levels. The four progressive price indexing options (Shields 30%, 40%, 50%, 60%) would produce smaller benefit reductions by exempting varying proportions of lower earners from price indexing. Those options would not increase poverty above scheduled levels, but would reduce benefits for some low earners because their auxiliary benefits come from the reduced benefits of a higher-earning spouse. The progressive price indexing options would make Social Security more progressive compared with scheduled and payable benefits, both when looking at household benefit reductions by household income in a given year and when examining the distribution of lifetime taxes and benefits