Balance of Trade

DEFINITION

The balance of trade forms part of the current account, which also includes other transactions such as income from the international investment position as well as international aid. If the current account is in surplus, the country's net international asset position increases correspondingly. Equally, a deficit decreases the net international asset position.

The trade balance is identical to the difference between a country's output and its domestic demand (the difference between what goods a country produces and how many goods it buys from abroad; this does not include money re-spent on foreign stocks, nor does it factor the concept of importing goods to produce for the domestic market).

Measuring the balance of trade can be problematic because of problems with recording and collecting data. As an illustration of this problem, when official data for all the world's countries are added up, exports exceed imports by a few percent; it appears the world is running a positive balance of trade with itself. This cannot be true, because all transactions involve an equal credit or debit in the account of each nation. The discrepancy is widely believed to be explained by transactions intended to launder money or evade taxes, smuggling and other visibility problems. However, especially for developed countries, accuracy is likely.

Factors that can affect the balance of trade figures include:

  • Prices of goods manufactured at home (influenced by the responsiveness of supply)
  • Exchange rates
  • Trade agreements or barriers
  • Offset agreements
  • Other tax, tariff and trade measures
  • Business cycle at home or abroad.

The balance of trade is likely to differ across the business cycle. In export led growth (such as oil and early industrial goods), the balance of trade will improve during an economic expansion. However, with domestic demand led growth (as in the United States and Australia) the trade balance will worsen at the same stage in the business cycle.

Strong growth economies such as the United States, Australia and Hong Kong run consistent trade deficits, as do poorer growing economies (where heavy investment fuels growth and the trade deficit).

Mature but stagnant economies such as Canada, Japan, and Germany typically run trade surpluses. China also has a trade surplus. A higher savings rate generally corresponds with a trade surplus. Correspondingly, the United States with its negative savings rate consistently has high trade deficits.