Network Centrality and Device Ecosystems

Doh-Shin Jeon, Yassine Lefouili, Yaxin Li and Timothy Simcoe
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Yaxin Li: TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement
Timothy Simcoe: BU - Boston University [Boston], NBER - National Bureau of Economic Research [New York] - NBER - The National Bureau of Economic Research

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Abstract: Motivated by several examples, including Internet of Things patent licensing, we develop a tractable model of multi-product ecosystems, where one or more platforms provide inputs to a set of devices linked through demand-side externalities. Prices depend on each device's Katz-Bonacich centrality in a network dened by the externalities, and we show how the relevant network diers for an ecosystem monop- olist, a social planner, or a group of complementary platforms. We use the model to revisit Cournot's analysis of complementary monopolies in a platform setting, and to analyze a partial (one-sided) merger of complementary platforms.

Keywords: Ecosystem; Multi-sided Market; Network; Centrality (search for similar items in EconPapers)
Date: 2025-02-24
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