00821nam0-22002771i-450-990003230490403321000323049FED01000323049(Aleph)000323049FED0100032304920000920d--------km-y0itay50------baitaIT<<The >>Usual Excess-Burden Approximation Usually Doesn't Come CloseLawrence H. Goulder, Roberton C. Williams IIIWorking paper seriesNBER7034N/2.3Goulder,Lawrence H.Williams,Roberton C.ITUNINARICAUNIMARCBK990003230490403321PaperSESSESUsual Excess-Burden Approximation Usually Doesn't Come Close449549UNINAING01