Why does Australia run persistent current account deficits and does it matter?
Explain the causes of Australia's current account deficit using the savings-investment gap, distinguish net foreign debt from net foreign equity, and evaluate whether a current account deficit is a problem
WACE Year 12 Economics Unit 3 on the current account deficit and foreign liabilities: the savings-investment gap, the difference between net foreign debt and equity, the Pitchford consenting-adults view, and whether a deficit is sustainable.
Reviewed by: AI editorial process; not yet individually human-reviewed
Have a quick question? Jump to the Q&A page
Jump to a section
What this dot point is asking
SCSA wants you to explain the savings-investment cause of the CAD, distinguish the types of foreign liability, and evaluate whether a deficit matters. This is a frequent extended-response topic because it links the balance of payments, foreign investment and national income.
The savings-investment gap
The current account and the capital and financial account are two sides of one coin. A current account deficit is automatically matched by a net capital inflow.
Australia has run a CAD for most of its history because it is a high-investment, relatively low-saving economy: abundant resource and infrastructure projects attract more investment than domestic saving can cover.
Net foreign debt versus net foreign equity
Foreign liabilities are the stock of what Australians owe to and own by foreigners. They divide into two types.
- Net foreign debt is the difference between what Australian residents have borrowed from overseas and what they have lent overseas. It must be serviced with interest payments, regardless of how the economy performs.
- Net foreign equity is the difference between foreign ownership of Australian assets (shares, property, companies) and Australian ownership of foreign assets. It is serviced with dividends and profits, which fall when the economy is weak, making equity a more flexible liability than debt.
Both generate the primary income debits that widen the current account on the income side.
Is a current account deficit a problem?
This is the core evaluation question. Two views frame the debate.
The traditional concern: a large CAD builds up foreign liabilities, raising interest and dividend obligations, exposing Australia to global interest rate rises and currency falls, and risking a loss of investor confidence that could trigger a sudden stop in capital inflow.
Sustainability indicators
To judge whether a CAD is sustainable, economists look at:
- The CAD as a share of GDP (a deficit growing faster than the economy is a warning sign).
- The debt-servicing ratio, the share of export earnings absorbed by net income payments.
- What the borrowing funds: productive investment versus consumption.
- The composition of liabilities: flexible equity and Australian-dollar-denominated debt are safer than foreign-currency short-term debt.
Australia's position is widely judged sustainable because much of its debt is hedged or denominated in Australian dollars, its banks are well regulated, and borrowing has largely funded investment.
Exam-style practice questions
Practice questions written in the style of SCSA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
WACE 202210 marksUsing the savings-investment gap, explain the causes of Australia's current account deficit, and evaluate whether such a deficit is a problem.Show worked answer →
A 10 mark response needs the savings-investment framework, the causes, and an evaluation.
Savings-investment gap. A current account deficit equals the gap between national investment and national saving. When Australia's investment opportunities exceed its domestic saving, the shortfall is funded by foreign capital, recorded as a financial-account inflow and matched by a current account deficit.
Causes. A high level of investment relative to saving (a small, resource-rich economy with large capital needs), a structural primary income deficit from servicing foreign liabilities, and commodity-price and exchange-rate movements.
Evaluation. The Pitchford thesis argues that a deficit driven by private borrowing and lending is not a policy problem, because consenting private agents bear their own risks. A deficit that funds productive investment raising future export capacity is sustainable; one funding consumption is riskier. Very large deficits can raise the risk premium and pressure the dollar, but the float acts as a shock absorber.
Markers reward the saving-investment identity, the structural primary income point, and a balanced sustainability judgement citing Pitchford.
WACE 20236 marksDistinguish between net foreign debt and net foreign equity, and explain why the distinction matters.Show worked answer →
A 6 mark response needs both terms defined and why the difference matters.
Net foreign debt. Australia's borrowings from the rest of the world (loans and bonds) minus its lending abroad. It carries a fixed servicing obligation: interest must be paid regardless of economic conditions.
Net foreign equity. Foreign ownership of Australian assets (shares, property, direct investment) minus Australian ownership abroad. Returns are dividends and profits, which rise and fall with performance rather than being fixed.
Why it matters. Debt is riskier because interest must be serviced even in a downturn, whereas equity returns flow only when firms are profitable, so equity shares risk with the foreign investor. A liability position weighted toward equity is generally more resilient than one weighted toward debt.
Markers reward both definitions and the fixed-obligation-versus-shared-risk contrast.