Complementarity in Household Expenditures on Fixed and Mobile Internet in France

Mathilde Aubouin, Paolo Melindi-Ghidi and Jean-Philippe Nicolaï

Annals of Economics and Statistics, 2025, issue 159, 143-174

Abstract: This paper revisits the question of whether fixed and mobile Internet expenditures are substitutable or complementary. We estimate a demand system using French household expenditure data to compute price elasticities of expenditure for different categories of goods. The results indicate that fixed and mobile Internet expenditures are complementary in France. This complementarity effect varies with income level. We then develop a simple theoretical analysis showing that, depending on the characteristics of fixed and mobile data tariffs, fixed and mobile Internet expenditures can exhibit complementarity.

Keywords: Internet Expenditure; Household Behavior; QUAIDS Demand System. (search for similar items in EconPapers)
JEL-codes: C30 D11 D12 (search for similar items in EconPapers)
Date: 2025
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Working Paper: Complementarity in household expenditures on fixed and mobile Internet in France (2025)
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Persistent link: https://EconPapers.repec.org/RePEc:adr:anecst:y:2025:i:159:p:143-174

DOI: 10.2307/48839157

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