Zoli C. (2017).

A note on progressive taxation and inequality equivalence. (ISSN: 2036-4679 Working Paper N°19) Dipartimento Scienze Economiche


We investigate the relationship between the notion of progressive taxation and inequality reduction under a general version of the concept of inequality equivalence. We consider a two parameter formalization of the concept of inequality equivalence that both includes as special cases the intermediate inequality equivalence and the unit-consistent inequality equivalence. Both criteria could range from relative to absolute inequality views as the parameters in the formulation change. For the unit-consistent inequality equivalence the condition of non-decreasing average tax rate is necessary and sufficient to guarantee the post-tax inequality reduction for all the inequality views in between the relative and the absolute.

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