usWhile Americans are typically earning less than 1 percent interest on their savings accounts and watching their 401(k) balances yo-yo along with the stock market, most public pension funds are still betting they will earn annual returns of 7 to 8 percent over the long haul, a practice that New York City Mayor Michael R. Bloomberg recently called indefensible.

Public pension funds across the country are facing a painful reckoning. Their projections look increasingly out of touch in today’s low-interest environment, and pressure is mounting to be more realistic. But lowering their investment assumptions, even slightly, means turning for more cash to local taxpayers — who pay part of the cost of public pensions through property and other taxes.

Boston.com