net exports (exports minus imports)

What is the Circular Flow?

Think of the economy as a big marketplace where households buy goods and services from firms, and firms pay households for the money they spend. Money flows in a loop:

• Households → Consumption (C)
• Firms → Investment (I)
• Government → Government Spending (G)
• Foreign Sector → Net Exports (NX)

Each arrow represents money moving in the opposite direction to goods and services.

Net Exports (NX) Explained

Net exports are the difference between what a country sells abroad (exports, E) and what it buys from abroad (imports, M).

$NX = E - M$

🔍 Analogy: Imagine you have a lemonade stand. If you sell 10 cups to the neighbourhood (exports) but buy 7 cups of sugar from a supplier (imports), your net export of lemonade is 3 cups.

Positive NX means the country is a net exporter; negative NX means it’s a net importer.

Example Calculation

Suppose the UK exports goods worth £100 bn and imports goods worth £80 bn.

$NX = 100 - 80 = 20$ bn

So the UK has a net export of £20 bn.

Exam Tip Box

When you see a question about net exports, remember:

1. Identify the exports (E) figure.
2. Identify the imports (M) figure.
3. Compute NX = E - M.
4. State whether the country is a net exporter or importer.

💡 Tip: If the answer is negative, say “net imports” and explain the impact on GDP.

Quick Review Questions

1. What does a negative net export value indicate?
2. How does an increase in imports affect GDP?
3. Explain why net exports are important for a country’s balance of payments.

Use the circular flow diagram to answer these questions.