JentooMacroeconomics

AP® Macroeconomics · Unit 6 · Topic 6.1

Why the Balance of Payments Balances

The balance of payments always sums to zero because every dollar that leaves a country to buy foreign goods or assets is matched by a dollar coming back, recorded as an offsetting entry. A current account deficit is always balanced by an equal financial account surplus.

Watch it drawn4 questionsPractice

The balance of payments has two main halves: the current account, which tracks trade in goods and services plus some income flows, and the financial account, which tracks purchases of assets like stocks, bonds, real estate, and businesses. These two halves always sum to zero because every international transaction has two sides. When a dollar leaves the country, it has to go somewhere, and wherever it lands counts as an inflow back into the balance of payments. There is no third place for money to vanish to.

Follow one imported car to see it work. A dealership in Ohio buys a car from Germany for 30,000 dollars. That purchase shows up as a current account debit, an import. The German automaker now holds 30,000 dollars. It will not bury them. It uses them to buy a US Treasury bond, invest in a US company, or buy US real estate. That purchase is a financial account credit, a capital inflow, exactly offsetting the current account debit. Multiply this by millions of transactions and the identity holds: current account plus financial account equals zero.

This is why a current account deficit never means dollars disappearing abroad. It means foreigners are accumulating claims on domestic assets, financial account surplus, dollar for dollar. A persistent current account deficit, like the US has run for decades, shows up as persistent foreign ownership of US stocks, bonds, and property. Flip it around: a country running a current account surplus, like exporting more than it imports, sends a financial account deficit the other way, net capital flowing out to buy foreign assets. This sets up the next idea: what moves the exchange rate and interest rates that drive these flows.

Key terms

Current account
The balance of payments section tracking trade in goods and services plus some cross-border income and transfers.
Financial account
The balance of payments section tracking purchases and sales of financial assets like stocks, bonds, and real estate across borders.
Balance of payments identity
The accounting rule that the current account and financial account must sum to zero.
Capital inflow
Foreign money entering a country to purchase domestic assets, recorded as a financial account credit.
Net capital outflow
The net amount a country's residents spend buying foreign assets minus what foreigners spend buying domestic assets.

Watch it explained

  1. How it worksWalk me through one imported car creating an equal and opposite entry in the financial account.
  2. Common mistakeWhy doesn't a current account deficit mean dollars are simply disappearing overseas?
  3. Ties togetherHow does a current account deficit turn into foreign ownership of domestic assets?
  4. Going furtherWhat happens to both accounts when a country runs a current account surplus instead?

Check yourself

Your turn1 of 2
A country sends billions of dollars abroad every year to pay for imports, running a persistent current account deficit. A student worries this means dollars are permanently disappearing from the country forever. What actually happens to those dollars?

End of topic.

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