Well maybe start by analysing the measures implemented in the 2017-18 budget, such as funding cuts etc which ultimately are put into place to sustain long term GDP growth for our economy (to reach a budget surplus). The government wants to balance the budget this way so that it is easier to enforce expansionary measures in the future should Australia face a recession. Perhaps even refer to how the expansionary use of fiscal policy during the 2008 Global Financial Crisis protected us from global economic downturn to emphasise the significance of long term economic stability - which is what the government is trying to achieve currently.
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