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Article Dans Une Revue International Journal of Industrial Organization Année : 2021

Simulating media platform mergers

Marc Ivaldi
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Jiekai Zhang
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Résumé

The empirical analysis of media platforms economics has often neglected the multi-homing behaviour of advertisers. Assuming away the cross-substitutability and/or complementarity between the advertising slots of different platforms could damage the quality and the robustness of counterfactual analysis. To evaluate the consequence of such an abstraction, we compare the simulation results of hypothetical platform mergers when the demand on the advertising side is derived from a Translog cost model which allows for multi-homing, and when it is approximated by using a simple log-linear inverse demand model that ignores the differentiation among media platforms’ advertising slots. Ignoring the existence of substitutes or complements on the advertising side would result in overpredicting the losses of the viewers’ surplus and in underpredicting the gains in platforms’ revenues
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Dates et versions

hal-03472984 , version 1 (31-01-2022)

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Citer

Marc Ivaldi, Jiekai Zhang. Simulating media platform mergers. International Journal of Industrial Organization, 2021, 79, ⟨10.1016/j.ijindorg.2021.102729⟩. ⟨hal-03472984⟩
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