The fact is, influential market players embrace the Fed model.

http://en.wikipedia.org/wiki/Fed_model

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MoneyWeek (April 28, 2010) argued that

“The Fed model matters because important people use it. Analysts across the board, from JP Morgan, to ING, to Prudential – I could go on and on – use the Fed model in their calculations.The fact is, influential market players embrace the Fed model. Whether they truly believe in it or not is immaterial.