●U.K. |
： |
BT has developed a top-down model which, after adjustment with the bottom-up model developed by Oftel (regulator), has been applied to the establishing of interconnection charges in the U.K. |
●Germany |
： |
WIK, a research institute on telecommunication economics, has released a bottom-up model while Deutsche Telekom is developing a top-down model. |
●France |
： |
ART (regulator) will compare an econometric model considering long-term cost efficiency (bottom-up model) with a model based on France Telecom’s accounting (top-down model). |
●E U |
： |
It is stated that the information required to complete a bottom-up calculation of LRIC-based costs should be cross-checked where appropriate by top-down models based on current costs. |
