Current account imbalances and correction
CIE A-Level EconomicsΒ· 45 min read
1. Nature and Causes of Current Account Imbalancesβ β β βββ± 15 min
Current account imbalance
A persistent deviation from current account balance, where the value of exports plus net income flows does not equal the value of imports over multiple years. This can be a deficit (outflows exceed inflows) or a surplus (inflows exceed outflows).
Example:
The US has run a persistent current account deficit since the 1990s, while China has run a persistent surplus over the same period.
Imbalances arise from a range of demand-side and supply-side factors, connected to a country's exchange rate, inflation rate, productivity, and growth rate. Common causes of deficits include overvalued exchange rates, higher domestic inflation than trading partners, low productivity, and strong economic growth that increases import demand.
Explain why a country with a fixed exchange rate and persistent higher inflation than its trading partners will likely develop a current account deficit.
- 1
Higher domestic inflation increases the price of domestically produced exports relative to goods from lower-inflation trading partners.
- 2
This reduces foreign demand for exports, lowering export revenue, and makes imports relatively cheaper than domestic goods for domestic consumers.
- 3
Higher import volumes and lower export volumes lead to a fall in net trade (X-M), ceteris paribus, resulting in a current account deficit.
Exam tip:
Always link the cause of an imbalance to the policy solution you suggest in exam answers.
2. Expenditure-Switching Policiesβ β β β ββ± 20 min
Expenditure-switching policy
Policy that aims to change the composition of domestic spending, switching demand away from imports towards domestically produced goods, and increasing foreign demand for domestic exports.
The main examples of expenditure-switching policies are currency devaluation (for fixed exchange rates) or depreciation (floating rates), and trade protectionism (tariffs, quotas on imports). These policies work by changing the relative price of imports and exports.
Evaluate the impact of a currency devaluation on correcting a current account deficit.
- 1
Devaluation lowers the foreign currency price of exports and raises the domestic price of imports, switching domestic and foreign spending towards domestic goods.
- 2
If the Marshall-Lerner condition is satisfied, net trade improves, reducing the current account deficit.
- 3
In the short run, the J-curve effect means the deficit may worsen first, because trade volumes take time to adjust to price changes.
- 4
Disadvantages: Higher import prices cause cost-push inflation, and may reduce pressure on domestic firms to improve productivity.
3. Expenditure-Reducing Policiesβ β β βββ± 15 min
Expenditure-reducing policy
Contractionary fiscal or monetary policy that reduces overall aggregate demand in the economy, leading to lower import spending because consumers and firms have less income to spend on foreign goods.
When a current account deficit is driven by strong domestic growth and high import demand, governments can use tax increases, spending cuts, or higher interest rates to slow down aggregate demand and reduce import consumption.
A country has a current account deficit of 5% of GDP and high domestic inflation. Explain how contractionary fiscal policy can correct the deficit.
- 1
Contractionary fiscal policy cuts government spending or raises taxes, reducing household disposable income and firm profits.
- 2
Lower income reduces overall consumption and investment, including spending on imported goods and services, so import expenditure falls.
- 3
Lower aggregate demand also reduces domestic inflation, improving the international competitiveness of domestic exports over time.
- 4
Trade-off: Lower AD leads to slower economic growth and higher cyclical unemployment, which is politically unpopular.
4. Supply-Side Policies for Long-Term Correctionβ β β β ββ± 18 min
Persistent current account deficits are often caused by long-term lack of competitiveness, from low productivity, high production costs, or poor infrastructure. Supply-side policies address these root causes to improve export performance and reduce import demand over time.
Investment in education and infrastructure to lower production costs
Labor market reform to increase flexibility and reduce wage costs
Deregulation and tax cuts for firms to encourage investment and innovation
Explain why supply-side policies are often preferred for correcting persistent current account deficits compared to contractionary demand policies.
- 1
Supply-side policies increase long-run productive capacity, lower production costs, and improve the quality of domestic goods.
- 2
This increases export competitiveness and reduces demand for cheaper imports, without the negative trade-off of lower growth and higher unemployment associated with expenditure-reducing policies.
- 3
Disadvantages: Supply-side policies take 5-10 years to have a measurable impact on current account imbalances, and require significant upfront government spending.
5. Common Pitfalls
Wrong move:
Assuming all current account deficits are always harmful
Why:
Many developing countries run temporary deficits to fund productive investment that drives long-term economic growth
Correct move:
Evaluate the size, cause and financing of the deficit before concluding it is problematic
Wrong move:
Forgetting the Marshall-Lerner condition when analysing devaluation
Why:
Devaluation will not improve the current account if the sum of elasticities is less than 1
Correct move:
Always reference the Marshall-Lerner condition and J-curve effect in devaluation questions
Wrong move:
Confusing expenditure-switching and expenditure-reducing policies
Why:
Examiners require clear categorization of policies to award full marks
Correct move:
Remember: switching changes the composition of spending, reducing cuts the overall level of spending
Wrong move:
Assuming all current account surpluses are desirable
Why:
Large persistent surpluses mean the country is consuming less output than it could, and cause trade tensions
Correct move:
Always evaluate the downsides of surpluses as well as deficits in exam answers
6. Quick Reference Cheatsheet
Policy Type | Examples | Key Advantage | Key Disadvantage |
|---|---|---|---|
Expenditure-Switching | Currency devaluation | Fast acting if M-L holds | Causes cost-push inflation |
Expenditure-Switching | Tariffs/quotas | Reduces imports quickly | Risk of retaliation, WTO violation |
Expenditure-Reducing | Contractionary fiscal policy | Also reduces high inflation | Higher unemployment, slower growth |
Expenditure-Reducing | Contractionary monetary policy | Reduces import demand quickly | Raises borrowing costs for firms |
Supply-Side | Infrastructure/education investment | Improves long-term competitiveness | Slow to impact, high fiscal cost |
When this came up on past exams
AI-estimated based on syllabus patterns β cross-check with official past papers for accuracy. Use only as revision-focus signals.
- 2023 Β· 4
Evaluate policies to correct a deficit
- 2022 Β· 2
Explain causes of a current account surplus
- 2021 Β· 4
Discuss why deficits may be harmful
Going deeper
What's Next
Understanding current account imbalances and correction is core to open-economy macroeconomics, and links to all other topics in international finance and globalisation. Examiners regularly ask you to connect correction policies to broader macroeconomic objectives, like low unemployment, price stability and sustainable growth. Persistent global imbalances are also a key driver of trade disputes and changes to global trade rules, so this topic connects directly to the study of globalisation and development.