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2012-13 Government Mid-year Financial Projections Statement

2012-13 Government Mid-year Financial Projections Statement

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The Western Australian EconomyAs of November <strong>2012</strong>, Treasury has adopted a revised market-based approach, whichuses forward rates to derive the exchange rate assumptions over the budget forecastperiod. This approach is impartial and produces forecasts that are consistent withmarket expectations of the exchange rate and changes in interest rate differentialsbetween the United States and Australia.Under this new market-based approach, the exchange rate assumptions are derivedusing the 20-day (4-week) average of market quoted forward exchange rates (tosmooth out volatility inherent in the daily rates) for contract maturities ranging from1 month to 5 <strong>year</strong>s, and interpolating values where monthly forward rates are notseparately available.Cause of Structural ChangeThe change in the relationship between commodity prices and the exchange ratereflects changes in the factors underpinning demand for the Australian dollar. Demandfor the Australian dollar has traditionally been influenced by the outlook forcommodity prices and exports, given Australia’s relatively high exposure to externaldemand. In recent <strong>year</strong>s though, demand for the Australian dollar has increasinglybeen underpinned by foreign demand for Australia’s AAA-rated Commonwealth<strong>Government</strong> Bonds (see following figure). This reflects Australia’s comparativelyhigh interest rates, politically stable economy, liberal financial system, and exposure toemerging economies in Asia.80Figure 3FOREIGN INVESTMENT IN COMMONWEALTH GOVERNMENT SECURITIES%$US/$A1.10701.00600.90500.80400.70Share of Commonwealth <strong>Government</strong> Securities held by non-residents (LHS)30Exchange rate (RHS)0.60Sep-04 Sep-05 Sep-06 Sep-07 Sep-08 Sep-09 Sep-10 Sep-11 Sep-12Source: ABS Catalogue 5302.0.59

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