As an efficient bridge linking the mainland and overseas, dry ports can not only revitalize the regional economy but also promote the growth of seaport throughput. However, the construction of dry ports is a long-cycle and high-consumption project, and it is necessary to coordinate the interests of all parties at the early stage of construction and fully consider the impact of the completed dry port on the seaport and the local economy. Therefore, this paper considers two Port Operators A and B, and Port Operator A decided to invest in dry port to upgrade and expand. We investigate under what conditions Port Operator A should establish what scale of dry port in the face of the increasingly complex competitive environment and shippers' port selection behavior. For that, we take two seaports as a kind of network product, and analyze the necessity and feasibility conditions for Port Operators to invest in the construction of dry ports by applying the economic theory of network effect on the basis of the improved Hotelling model. The results show that even if the network effect is low, if the shippers bear a low unit transportation cost, the construction of dry ports can not only help Port Operator A to enhance competitiveness but also promote the development of Social Welfare. If the network effect intensity is high, Port Operator A can realize rapid expansion by taking advantage of the high service quality of dry ports, but the scale of dry port should be controlled within a certain range.

中文翻译：

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区域竞争环境下具有网络效应的无水港投资模式


陆港作为连接内地与海外的高效桥梁，不仅可以振兴地区经济，还可以促进海港吞吐量的增长。但无水港建设是一项长周期、高消耗的工程，需要在建设初期协调各方利益，充分考虑建成的无水港对海港和港口的影响。当地经济。因此，本文考虑两家港口运营商A和B，港口运营商A决定投资无水港进行升级和扩建。我们探讨面对日益复杂的竞争环境和托运人的港口选择行为，港口经营者A在什么条件下应该建立什么规模的无水港。为此，我们将两个海港视为一种网络产品，在改进的Hotelling模型的基础上，运用网络效应经济理论，分析了港口经营者投资建设无水港的必要性和可行性条件。结果表明，即使网络效应较低，如果托运人承担的单位运输成本较低，无水港的建设不仅可以帮助港口运营商A增强竞争力，还可以促进社会福利的发展。如果网络效应强度较高，港口经营者A可以利用无水港的高服务质量实现快速扩张，但无水港的规模应控制在一定范围内。