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Spatial equilibrium in a duopoly under asymmetric network externalities

机译:不对称网络外部性下双寡头的空间均衡

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Network externalities are present in a variety of applications of spatial and network economics. For example, in energy networks the consumers often are assumed to benefit from a large number of other households using the same type of energy. In general, different firms can be asymmetric in terms of their network externality effect. This paper addresses the role of asymmetric network externalities to the existence and nature of spatial equilibrium in a duopoly with a quadratic transport cost. The study is based on a discrete choice Hotelling-type model where non-cooperative suppliers decide on prices and locations. The model has a pure strategy subgame-perfect equilibrium with maximal differentiation for a wide range of the parameter values of the asymmetric (or symmetric) network externalities. The model is applied to study equilibrium in an energy market consisting of a non-renewable energy producer and a renewable energy producer.
机译:网络外部性存在于空间和网络经济学的各种应用中。例如,在能源网络中,通常假定消费者会从使用相同类型能源的大量其他家庭中受益。通常,不同公司的网络外部性效应可能是不对称的。本文讨论了具有二次运输成本的双头垄断中不对称网络外部性对空间均衡的存在和性质的作用。该研究基于离散选择的Hotelling型模型,其中非合作供应商决定价格和位置。该模型具有纯策略子博弈完美平衡,对于不对称(或对称)网络外部性的广泛参数值,具有最大的差异。该模型用于研究由不可再生能源生产者和可再生能源生产者组成的能源市场中的平衡。

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