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Competition and Regulation in the Telecommunications Industry in ...

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<strong>Competition</strong> <strong>and</strong> <strong>Regulation</strong> <strong>in</strong> <strong>Telecommunications</strong>easier to identify essential facilities <strong>and</strong> anti-competitive behaviour stemm<strong>in</strong>g fromvertical <strong>in</strong>tegration. It is also easier to track where competition can feasibly survivewithout regulation.1.1.1 Provision of Network InfrastructureNetwork providers operate <strong>the</strong> <strong>in</strong>frastructure on which various telecommunicationservices are run. Networks are made up of switches <strong>and</strong> transmission. The switchesprovide <strong>the</strong> rout<strong>in</strong>g of voice, data, <strong>and</strong> video signals through <strong>the</strong> network. Thetransmission medium can be separated <strong>in</strong>to fixed l<strong>in</strong>e (twisted pair of copper wires,fibre optic, coaxial cable) or wireless (satellite, cellular radio, microwave, PCS).The big technological changes <strong>in</strong> network provision have been (Laffont & Tirole2000):• <strong>the</strong> rapidly decreas<strong>in</strong>g costs of switches <strong>and</strong> transmission equipment• <strong>the</strong> <strong>in</strong>creas<strong>in</strong>g capacity <strong>and</strong> speed of transmission mediums – both <strong>in</strong> <strong>the</strong>transmission material (e.g. fibre optic) <strong>and</strong> <strong>the</strong> improved compression of signals(e.g. ADSL or asymmetric digital subscriber l<strong>in</strong>es which <strong>in</strong>crease speeds oncopper paired wire)• <strong>the</strong> <strong>in</strong>creas<strong>in</strong>g <strong>in</strong>telligence of <strong>the</strong> networks enabl<strong>in</strong>g <strong>the</strong>m to improve <strong>the</strong>irefficiency <strong>and</strong> beg<strong>in</strong> to offer a wide variety of services beyond mere telephony(discussed below)• <strong>the</strong> convergence of different <strong>in</strong>dustries due to <strong>the</strong> common use of digital format.The <strong>in</strong>dustries relate to <strong>the</strong> orig<strong>in</strong>al purpose for which <strong>the</strong> networks were built –telecommunications (voice), broadcast<strong>in</strong>g (video) <strong>and</strong> comput<strong>in</strong>g (data)There are three different components to <strong>the</strong> network that can be seen as threedifferent stages of production. These are local access, long-distance <strong>and</strong><strong>in</strong>ternational. Figure 1.1 below demonstrates how <strong>the</strong>se three components<strong>in</strong>terconnect to form a complete <strong>in</strong>ternational telecommunications network. It looks ata mixed fixed l<strong>in</strong>e/mobile example. The local access network connects <strong>the</strong> customerpremises to <strong>the</strong> local switch through <strong>the</strong> local loop. From <strong>the</strong> local switch <strong>the</strong>re is an<strong>in</strong>teroffice transmission facility to ei<strong>the</strong>r o<strong>the</strong>r local switches or long-distance (nationalor <strong>in</strong>ternational) po<strong>in</strong>ts-of-presence. The long-distance networks <strong>the</strong>n transmit <strong>the</strong>signal to ano<strong>the</strong>r long-distance po<strong>in</strong>t-of-presence where it is distributed to a localswitch <strong>and</strong> onto <strong>the</strong> o<strong>the</strong>r customer premises. What follows is a more detaileddiscussion of each component of <strong>the</strong> supply cha<strong>in</strong> <strong>and</strong> <strong>the</strong> various technologicalplatforms used.3

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