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Business Case for the SunShine CoaSt airport Master Plan

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Results and discussion<br />

Alternative discount rates<br />

Using <strong>the</strong> alternative discount rates prescribed by IA (4% and 10%), <strong>the</strong>re is a significant<br />

variance on <strong>the</strong> NPV of net benefits and <strong>the</strong> BCR (though, naturally <strong>the</strong> IRR remains constant).<br />

Economic indicators – alternative discount rates<br />

4% discount rate<br />

Benefit Cost Ratio 9.65<br />

NPV Net Benefits<br />

$3,075m<br />

IRR (Economic benefits) 23.25%<br />

10% discount rate<br />

Benefit Cost Ratio 4.13<br />

NPV Net Benefits $607m<br />

IRR (Economic benefits) 23.25%<br />

Combined sensitivities<br />

Taking <strong>the</strong> most conservative view of <strong>the</strong> economic costs and benefits of <strong>the</strong> project, <strong>the</strong><br />

following ‘minimum’ economic indicators can be established by applying a combination of<br />

‘worst case’ assumptions. Even with <strong>the</strong>se low-case assumptions, <strong>the</strong> BCR is greater than 1.<br />

Low case demand with high case capital cost variation:<br />

Economic indicators – demand AND capital cost variation<br />

+30% capital cost estimates with low demand scenario<br />

Benefit Cost Ratio 1.79<br />

NPV Net Benefits $250m<br />

IRR (Economic benefits) 11.03%<br />

Low case demand with high case capital cost variation AND transfer impact:<br />

Economic indicators – demand AND capital cost variation<br />

+30% capital cost estimates with low demand scenario and transfer impact (50%)<br />

Benefit Cost Ratio 1.15<br />

NPV Net Benefits<br />

$46.8m<br />

IRR (Economic benefits) 7.97%<br />

Sunshine Coast Airport<br />

PricewaterhouseCoopers 47

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