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首页> 外文期刊>Journal of regulatory economics >Imperfect legal unbundling of monopolistic bottlenecks
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Imperfect legal unbundling of monopolistic bottlenecks

机译:垄断瓶颈的法律解除不完善

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摘要

We study an industry with a monopolistic bottleneck supplying an essential input to several downstream firms. Under legal unbundling the bottleneck must be operated by a legally independent upstream firm, which may be partly or fully owned by an incumbent active in downstream markets. Access prices are regulated but the upstream firm can perform non-tariff discrimination. Under perfect legal unbundling the upstream firm maximizes only own profits; with imperfections it is biased and to some extent accounts also for the incumbent's downstream profits. We show that increasing the incumbent's ownership share increases total output if the upstream firm's bias is sufficiently small, while otherwise effects are ambiguous. Stronger regulation that reduces the bias without changing ownership shares generally increases total output. We also endogenize the bias and show that it can depend non-monotonically on the ownership share.
机译:我们研究的行业具有垄断瓶颈,为数家下游公司提供了必要的投入。根据法律上的捆绑,瓶颈必须由合法独立的上游公司经营,而上游公司可能会部分或完全由下游市场的活跃公司拥有。接入价格受到管制,但是上游公司可以进行非关税歧视。在完善的法律约束下,上游公司只能实现自身利润的最大化。由于存在缺陷,因此存在偏差,并且在一定程度上也考虑了在位者的下游利润。我们表明,如果上游企业的偏见足够小,则增加任职者的所有权份额会增加总产出,而其他方面的影响是模棱两可的。在不改变所有权份额的前提下,加强监管以减少偏见通常可以增加总产出。我们还内生了偏见,并表明它可以非单调地取决于所有权份额。

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