Template-Type: ReDIF-Paper 1.0 Title: A reinterpretation of elasticity formulae in optimum tax theory Author-Name: Sandmo,Agner Author-WorkPlace-Name: University of Bonn Classification-JEL: Keywords: Optimal taxation,Compensated elasticity,Leisure Series: Sonderforschungsbereich 303 Creation-Date: 1986 Handle: RePEc:bon:bonsfa:64