00365pab a2200133 454500008004000000100001700040245005900057260000900116300001300125362000800138650003600146650002000182773002900202180718b2004   xxu||||| |||| 00| 0 eng d  aSinai, Allen  aPreemption, changing structure, and US monetary policy  c2004  ap.49-52.  aMay  aMonetary policy - United States  aMonetary policy  aAmerican Economic Review