00281nam a2200109Ia 4500008004100000020001800041100005500059245001600114250000600130260002100136650001400157240827s9999 xx 000 0 und d a9783486586329 aMichael Bloss , Dietmar Ernst And Joachim Häcker 0aDerivatives a1 bDe Gruyterc2008 aEconomics