Starting from an equilibrium position when the economy is at full employment use the static AD/AS model to:

1.Depict and discuss the overall situation of the economy in June last year (after the "coronasession" had hit the Australia economy)

2.Depict and discuss the impact of the Government fiscal stimulus on the economy by early 2021.

3.Explain the pathway by which the current fiscal policy differs in its impact on the economy from an expansionary monetary policy?

using the case study

Morrison's budget task: stop the economy's roar turning to a meow

Scott Morrison and Josh Frydenberg look like they're sitting pretty as they finalise what may be their last budget before the federal election due by the first half of next year. Look deeper, however, and you see they face a serious risk of the economy's recovery losing momentum over the coming financial year. But, equally, they have a chance to show themselves as the best economic managers since John Howard's days.

So far, the strength of the economy's rebound from the "coronacession" has exceeded all expectations. Judged by the quantity of the nation's production of goods and services, the economy contracted hugely during the three months to June last year. As our borders were closed, many industries were ordered to stop trading and you and I were told to leave home as little as possible.

But with the lifting of the lockdown in the second half of the year, the economy took off. It rebounded so strongly in the next two quarters that, by the end of December, our production - real gross domestic product - was just 1 per cent below what it had been a year earlier, before the arrival of the coronavirus.

The rebound in jobs is even more remarkable. The number of people in jobs fell by almost 650,000 in April and May, and that's not counting the many hundreds of thousands of workers who kept their jobs thanks only to the JobKeeper scheme.

But as soon as the lockdown was eased, employment took off. By last month, it was actually a fraction higher than it had been in March 2020. We'd been warned the rate of unemployment would reach 10 per cent, but in fact it peaked at 7.5 per cent in July and is now down to 5.6 per cent. Before this year's out, it's likely to have fallen to the 5.1 per cent it was before the pandemic.

The confidence of both businesses and consumers is now higher than it has been for ages. Same for the number of job vacancies. Share prices are riding high (not that I set much store by that).

Little wonder the financial press has proclaimed the economy to be "roaring". Hardly a bad place to be when preparing another budget. What could possibly go wrong?

Just this. The main reason the economy has rebounded so strongly is the unprecedented sums the government spent on JobKeeper, the JobSeeker supplement, HomeBuilder and countless other programs with gimmicky names. Spending totalling a quarter of a trillion dollars.

What it proves is that "fiscal stimulus" works a treat. Trouble is, all those programs were designed to be temporary and the biggest of them have already been wound up. So, though not all the stimulus has yet been spent, it's clear the stimulus is waning.

And this at a time when there's no other major force likely to drive the economy onwards and upwards. Business investment spending is way below normal. Growth in the wage income of consumers has been weak for six years or more and, for many workers at present, frozen.

Because all the stimulus programs are stopping, the government's update last December estimated that the budget deficit for the next financial year will be $90 billion less than the deficit for the year soon ending.

This may sound good, but it means that, whereas last year the government put far more money into the economy than it took out in taxes and charges, in the coming year it expects the budget's contribution to growth to fall by $90 billion - the equivalent of about 4 per cent of GDP.

So that's the big risk we face: that before long the economy's roar will turn to no more than a loud meow.

Now to Morrison and Frydenberg's chance of greatness. Their temptation is to get unemployment back to the pre-pandemic rate of 5 per cent and call it quits. That's certainly what previous governments would have done.

But let me ask you a question: do you regard an unemployment rate of 5 per cent as equal to full employment? Is that where everyone who wants a job has got one?

Hardly. And, as Professor Ross Garnaut has argued in his latest book,Reset, there's evidence that we can get unemployment much lower - say, 3.5 per cent or less - before we'd have any problem with soaring wage and price inflation.

The good news is that the answers to the Morrison government's risk of economic failure and its chance of economic greatness are the same: keep the budgetary stimulus coming for as long as it takes the private sector to revive and take up the slack.

That means finding new spending programs to take the place of JobKeeper and the rest. And here Morrison's political and economic needs are a good fit. Making an adequate response to the report of the aged care royal commission will take big bucks.

And he needs to make this a hugely women-centred budget in marked contrast to last year's. Obvious answer: do what the women's movement has long been demanding and make childcare free.