Multi‐part tariffs and differentiated commodity taxation
Anna D'Annunzio,
Mohammed Mardan and
Antonio Russo
RAND Journal of Economics, 2020, vol. 51, issue 3, 786-804
Abstract:
We study commodity taxation in markets where firms, such as Internet Service Providers, energy suppliers, and payment card platforms, adopt multi‐part tariffs. We show that ad valorem taxes can correct underprovision and hence increase welfare, provided the government applies differentiated tax rates to the usage and access parts of the tariff. We obtain this result in different settings, including vertically interlinked markets, markets where firms adopt menus of tariffs to screen consumers, and where they compete with multi‐part tariffs. Our results suggest that exempting these markets from taxation may be inefficient.
Date: 2020
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https://doi.org/10.1111/1756-2171.12340
Related works:
Working Paper: Multi-Part Tariffs and Differentiated Commodity Taxation (2019) 
Working Paper: Multi-part Tariffs and Differentiated Commodity Taxation (2019) 
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Persistent link: https://EconPapers.repec.org/RePEc:bla:randje:v:51:y:2020:i:3:p:786-804
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