The postal industry is considered to be the natural monopoly industry traditionally.
邮递业在传统上被认为是自然垄断产业。
Meanwhile, price regulation should be taken for the natural monopoly industry with strong network characters, and effect produced by the law of increasing returns can be magnified.
并对网络性较强的自然垄断产业实施价格规制，放大整个产业报酬递增规律效应。
Natural monopoly industry becomes an important domain of regulation because of its natural monopoly property, but regulation inefficiency occurs at times with the existence of regulation.
自然垄断产业由于其自身的自然垄断性而成为规制的重要领域之一，但随着规制的存在，规制失灵也时常出现。
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