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The complementarity between calls and messages in mobile telephony

Abstract : This article estimates the price elasticities of the demand for mobile telephone calls and the demand for messages for Portugal. We use a panel of individual level data. In order to account for the unobserved individual heterogeneity and for the data censoring, we estimate a Tobit model for panel data with individual random effects. The demand for calls and the demand for messages are inelastic. Calls and messages are complements.
Keywords : L13 L43 L5 L96
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https://hal.telecom-paris.fr/hal-02286668
Contributor : Telecomparis Hal <>
Submitted on : Friday, September 13, 2019 - 4:01:12 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:34 PM

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  • HAL Id : hal-02286668, version 1

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L. Grzybowski. The complementarity between calls and messages in mobile telephony. Information Economics and Policy, 2008, 20 (3), pp.279-287. ⟨hal-02286668⟩

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