Hybrid platform model: monopolistic competition and a dominant firm.
We model a platform controlling the variety and prices of the products it hosts via a percentage fee on sellers and choosing whether to sell its own products (hybrid mode). We derive a mixed market demand system for differentiated products with monopolistically competitive sellers and a sizeable pla...
| Published in: | RAND Journal of Economics (Wiley-Blackwell) Vol. 55; no. 4; pp. 684 - 719 |
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| Main Authors: | , |
| Format: | Article |
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Wiley-Blackwell
Dec2024
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| Subjects: | |
| Online Access: | View this record in EBSCOhost |
| Summary: | We model a platform controlling the variety and prices of the products it hosts via a percentage fee on sellers and choosing whether to sell its own products (hybrid mode). We derive a mixed market demand system for differentiated products with monopolistically competitive sellers and a sizeable platform product range. The hybrid platform steers consumers toward its products by charging higher seller fees than pure marketplace. This "insidious steering" intensifies the larger the platform's product footprint. Hybrid mode harms consumers compared to pure marketplace unless fringe entry is sufficiently inelastic. |
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