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題 名 | 垂直分割下之最適垂直結構=The Optimal Vertical Structure under Vertical Separation |
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作 者 | 林啟智; | 書刊名 | 公平交易季刊 |
卷 期 | 15:4 2007.10[民96.10] |
頁 次 | 頁169-187 |
分類號 | 575.16 |
關鍵詞 | 管制革新; 自由化; 接續費; Regulatory reform; Liberalization; Access price; |
語 文 | 中文(Chinese) |
中文摘要 | 自1980年代起,管制革新在全球掀起風起雲湧的浪潮。各國政府莫不希望建立新的管制制度,以提高公用事業的效率。然而,文獻卻未重視現實不同產業有不同垂直結構的現象。基於自由化前必須進行垂直分割,以避免既存廠商採行阻卻參進的策略,本文乃在垂直分割的前提下,分析公用事業的自由化,應如何架構垂直關係,方能達成提升效率的目標。結論指出無論提供網路設施的獨占廠商是否已私有化,都以該獨占廠商位於上游,網路附加服務位於下游的垂直關係,才能獲得最大的社會福利。此外,在上述垂直架構下,當需求是凹性時,網路設施獨占廠商可能不需要政府的補貼,反而還有盈餘可以繳回國庫。準此,所有公用事業,包含現今網路設施位於下游的電力事業、天然瓦斯,甚至是有線電視等產業的垂直關係,都應將網路設施獨占廠商置於上游,才能透過網路附加服務的自由化,而提昇社會福利。 |
英文摘要 | Since the 1980s, regulatory reform has become increasingly widespread. New regulatory institutions and policies have been designed to improve the efficiency of utilities. While the design of vertical structures is one of the policies, it has almost been completely neglected in the literature. To prevent anticompetitive behavior from being exercised by the incumbent, it is better to adopt vertical separation before liberalization. Based on the above reasoning, we analyze how to design the fittest vertical structure under vertical separation and how to liberalize the provision of service over the network. We find that regardless of whether the monopoly over the network activity is privatized or not, the optimal vertical relationship must be that where the monopolist is upstream from the provision of service over the network. That is, the upstream monopolist must provide other firms with network access. When the demand is concave, the access price must be above the marginal cost of the monopolist, and there may exist a case for not subsidizing network access. |
本系統中英文摘要資訊取自各篇刊載內容。