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Excerpted from TFI's report:
Depreciation Lives for Fiber Optic Cables in the Local Exchange
Ray L. Hodges and Lawrence K. Vanston, Ph.D.
Technology Futures, Inc.
A more conservative forecast of the displacement of standard fiber in the interoffice and feeder environment can be developed by using the historical fiber-for-metallic-cable substitutions as analogies. In this case, it is assumed that both the interoffice and feeder fiber-for-fiber substitutions reach 1% by the end of 2003. Thereafter, the substitutions are assumed to follow the Fisher-Pry model at the same respective substitution rates as their historical analogues: the complete interoffice fiber-for-metallic substitution and the partially complete fiber-for-metallic feeder substitution. The resulting forecasts are shown in the figure above. These are then combined into a composite technology substitution curve.Please visit the report page, Depreciation Lives for Fiber Optic Cables in the Local Exchange for more information and purchasing details.