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Economies of scale in networks

机译:网络规模经济

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A network's capacity can typically be increased in a variety of ways. For example, in a highway network, existing roads can be made wider or new roads added. This paper is concerned with the determination of the degree of local economies of scale in the cost function for the outputs of a congestible network when there are multiple margins for making adjustments to capacity. The main result is that under the provision of a cost-minimizing network-one for which the sum of user and capacity costs for the network's outputs is at a minimum-the degree of local economies of scale in the cost function for the network's outputs is the same along all margins for adjusting capacity. This includes what routes to establish.
机译:网络容量通常可以通过多种方式增加。例如,在公路网中,可以将现有道路加宽或添加新道路。本文关注的是在存在多个容限来调整容量时,确定拥塞网络输出的成本函数中局部规模经济的程度。主要结果是,在提供成本最小化的网络的情况下,对于该网络,网络输出的用户成本和容量成本之和最小,网络输出成本函数中的本地规模经济程度为:调整产能的所有边际都一样。这包括要建立的路线。

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