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首页> 外文期刊>Journal of transport economics and policy >Cost-Benefit Analysis for Transport Networks: Theory and Application
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Cost-Benefit Analysis for Transport Networks: Theory and Application

机译：运输网络的成本效益分析：理论与应用

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摘要

Practical methods for estimating benefits corresponding to second-best situation are derived by modelling a congestion-prone transport network explicitly. A change in total benefit of an investment in transport infrastructure can be calculated in three ways: (a) the sum of the changes in consumers' and producers' surpluses in all routes; (b) the sum of the changes in consumers' and producers' surpluses in the invested routes, plus the change in the deadweight loss in all other routes; and (c) the change in the total benefits in the first-best case a change in the deadweight loss in all routes. Applying method (c), the author demonstrates that the final benefits of distortion-relieving policies are simply the sum of a change in the deadweight loss in all routes. Theoretical results are derived in practically useful forms, and then illustrated with examples.
机译：通过对易发拥塞的传输网络进行显式建模，可以得出估算与次优情况相对应的收益的实用方法。运输基础设施投资总收益的变化可以通过三种方式计算：（a）所有路线中消费者和生产者盈余变化的总和； （b）所投资路线的消费者和生产者盈余变化的总和，加上所有其他路线的无谓损失的变化； （c）在最理想的情况下，总收益的变化是所有路径的无谓损失的变化。应用方法（c），作者证明了减轻扭曲的政策的最终好处就是所有路线的自重损失变化的总和。理论结果以实用形式导出，然后通过示例进行说明。

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