00340    a2200133   450000500170000002000180001708200120003510000180004724500280006525000120009326000370010530000430014270000210018520250627144536.0  a0-07-255974-8  a330 FRA  aFRANK , H . R  aPrinciples of Economics  a2nd Ed.  aBostonbMcGraw-Hill Irwinc2004.  avii,474p.: illl.; figuresbIndexc27cm  aBen S . Bernanke