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七八十年代以来随着电子计算机的发展、交换机的电子计算机化和光纤通信材料的广泛应用,电信产业呈现出一系列不同于以往的技术经济特征:(1)电信产业的自然垄断论受到挑战。不仅不需铺设电缆的寻呼和移动电话从一开始就被视为不具有自然垄断性,就是有线通讯网络也由于经济学家发现竞争压力“不但导致在时间的任何点上降低成本,而且导致在
Since the 1970s and the 1980s, with the development of electronic computers, the computerization of switches and the extensive application of optical fiber communications materials, the telecommunications industry has shown a series of technical and economic features different from the past: (1) the natural monopoly of telecommunications industry is challenged . Not only is paging and mobile phones that do not require cable laying are not inherently monopolistic from the outset, nor are wired communication networks and economists find competing pressures "not only to reduce costs at any point in time but also to in