New Zealand
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WACC Input Assumptions
As at 30 June 2009, the Cost of Capital Report uses the following input assumptions:
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Risk free rate of return (five year bond)
|
Rf
|
5.5%
|
|
Marginal tax rate on debt
|
Tc
|
30.0%
|
|
Market risk premium
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Rm-DmTm-Rf(1-Ti)
|
7.5%
|
|
Investor tax rate on equity
|
Ti
|
30.0%
|
|
Minimum asset beta adjustment
|
 |
0.30
|
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