``The Fed is going to have to keep slashing rates, probably below inflation,'' said Robert Shiller, the Yale University economist who co-founded an index of house prices. ``We are starting to see a change in consumer psychology"... So-called negative real interest rates represent an emergency strategy by Chairman Ben S. Bernanke and are fraught with risks. The central bank would be skewing incentives toward spending, away from saving, typically leading to asset booms and busts that have to be dealt with later.
Negative real rates are ``a substantial danger zone to be in,'' said Marvin Goodfriend, a former senior policy adviser at the Richmond Fed bank. ``The Fed's mistakes have been erring too much on the side of ease, creating circumstances where you had either excessive inflation, or a situation where there is an excessive boom that goes on too long.''
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