This paper develops a duopoly model to analyse capacity sharing strategy and the optimal revenue-sharing contract under a two-part tariff and examines the effects of capacity sharing, cost, and sharing charges in three scenarios. The paper uses the two-part tariff method and adds a more realistic assumption of incremental marginal costs to improve the research on capacity sharing strategies. The results show that capacity constraints affect the sustainable development of firms. A sustainable revenue-sharing contract can create a win-win situation for both firms and promote capacity sharing. Capacity sharing, cost, and the revenue-sharing rate have different impacts in different scenarios; the optimal revenue-sharing rate and fixed fee can be determined to maximise the profits of firms that share capacity. However, capacity sharing may not improve social welfare.

中文翻译：

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具有可持续收入分享合同的能力分享战略

本文建立了一个双头垄断模型来分析两部分电价下的容量共享策略和最佳收益共享合同，并检验了容量共享、成本和共享费用在三种情况下的效果。本文采用两部分资费法，并增加了一个更现实的增量边际成本假设，以改进对容量共享策略的研究。结果表明，产能约束影响企业的可持续发展。可持续的收益分享合同可以为双方公司创造双赢局面并促进产能共享。容量共享、成本、收益共享率在不同场景下的影响不同；可以确定最佳收益分享率和固定费用，以使分享产能的公司的利润最大化。然而，