Supplementary Material

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• Online Appendix: Multihoming and oligopolistic platform competition (with Tat-How Teh, Chunchun Liu and Junjie Zhou)

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• Online Appendix: Recommender systems and the value of user data (with Gunhaeng Lee)

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• Online Appendix: Data-enabled learning, network effects and competitive advantage (with Andrei Hagiu)

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• Online Appendix: Should platforms be allowed to sell on their own marketplaces? (with Andrei Hagiu and Tat-How Teh)

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• Online Appendix: Controlling versus enabling (with Andrei Hagiu)

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• Online Appendix: Should platforms be allowed to charge ad valorem fees? (with Zhu Wang)

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• Online Appendix: Why (don’t) firms free ride on an intermediary’s advice? (with Bo Shen)

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• Online Appendix: Signaling private choices (with Younghwan In)

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• Online Appendix: Ad-valorem platform fees, indirect taxes and efficient price discrimination (with Zhu Wang)

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• Supplementary Appendix. Punishment strategies in repeated games: Evidence from experimental markets

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• Supplementary Appendix to "Exclusive Dealing with Network Effects" (with Toker Doganoglu)

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• Supplementary Appendix for Tacit Collusion with Price-Matching Punishments (with Yuanzhu Lu)

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• Technical Appendix to: Exclusive Dealing with Imperfect Downstream Competition (with Jose Miguel Abito)

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• Naked Exclusion and the Anticompetitive Accommodation of Entry: Two Examples

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• Supplementary material: Appendix for Multihoming and Compatibility

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• The Determinants of Optimal Interchange Fees in Payment Systems: Supplementary Appendix

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• Supplementary material: Competing Payment Schemes NUS Working Paper No. 0311 (with Graeme Guthrie)

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• Supplementary material: Competing Payment Schemes Working Paper No. 245. Department of Economics. University of Auckland (with Graeme Guthrie)

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• Interconnection in Network Industries: Supplementary Appendix

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