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Entry deterrence when the potential entrant is your competitor in a different market Ropero-García, Miguel Ángel Monopolios Competencia económica In this article, we present a two-period model in which one firm operates in two markets: a monopoly and a duopoly. Assuming that this firm has private information on the cross-price elasticity of demand between the products sold in both markets, it limits its quantity supplied in the monopoly market in order to make its rival in the other market believe that entry into the monopolized market is unprofitable. As a result of this strategy, the average prices observed in both markets increase. This result suggests that the detrimental effects of entry deterrence on consumers´ welfare are stronger than those predicted by previous literature. 2025-01-17T10:10:33Z 2025-01-17T10:10:33Z 2021 journal article Ropero MÁ. Entry deterrence when the potential entrant is your competitor in a different market. South Econ J. 2021; 87: 1010–1030. https://doi.org/10.1002/soej.12478 https://hdl.handle.net/10630/36471 10.1002/soej.12478 eng open access Wiley Online Library