Calculation of deficits and surpluses on the current account of the balance of payments and its component sections

International Trade & Globalisation: Current Account of the Balance of Payments

What is the Balance of Payments?

📚 The Balance of Payments (BoP) is like a country’s yearly financial diary. It records every money inflow and outflow between a country and the rest of the world. The Current Account is one part of this diary, focusing on trade in goods, services, and income.

Components of the Current Account

ItemExports (in £m)Imports (in £m)Net (Exports – Imports)
Goods\$X\$\$Y\$\$X-Y\$
Services\$S_{exp}\$\$S_{imp}\$\$S{exp}-S{imp}\$
Primary Income\$PI_{exp}\$\$PI_{imp}\$\$PI{exp}-PI{imp}\$
Secondary Income\$SI_{exp}\$\$SI_{imp}\$\$SI{exp}-SI{imp}\$

🔑 The Current Account balance is the sum of all the “Net” columns.

Calculating Deficits & Surpluses

Use the formula:

\$Current\ Account = (Exports - Imports) + (Primary\ Income) + (Secondary\ Income)\$

🧮 Think of it as a simple addition: add all the money that comes in, then subtract all the money that goes out.

Example Calculation

Country A’s data for a year:

  • Goods Exports: £100 m

  • Goods Imports: £120 m

  • Services Exports: £30 m

  • Services Imports: £20 m

  • Primary Income: £5 m (net)

  • Secondary Income: –£3 m (net)

Step‑by‑step:

  1. Goods Net: £100 m – £120 m = –£20 m

  2. Services Net: £30 m – £20 m = £10 m

  3. Primary Income Net: £5 m

  4. Secondary Income Net: –£3 m

  5. Current Account = (–£20 m) + £10 m + £5 m + (–£3 m) = –£8 m

📉 Country A has a £8 m deficit on its current account.

Exam Tip Box

🔍 Key points to remember:

  • Exports are positive figures; imports are negative (or subtract them).

  • Primary income includes wages, salaries, and investment income.

  • Secondary income covers gifts, remittances, and foreign aid.

  • Always check the sign of each component before summing.

💡 Practice with different numbers to get comfortable spotting whether a country has a surplus or deficit.

Analogy: Your Personal Bank Account

Imagine your country’s current account is like your own bank account:

  • Money you earn from selling goods/services abroad = Deposits (Exports)

  • Money you spend on buying goods/services from abroad = Withdrawals (Imports)

  • Money you receive from foreign investors or workers = Interest & wages (Primary Income)

  • Money you send or receive as gifts = Transfers (Secondary Income)

If deposits exceed withdrawals, you have a surplus (like a savings boost). If withdrawals exceed deposits, you have a deficit (like a debt that needs to be paid back).