Macroeconomic Policy Conflicts and the Phillips Curve: Question 8
Syllabus 10.1
Nordavia is a small economy whose main export is copper. Global copper prices rise sharply on world commodity markets, significantly increasing the revenue earned by Nordavia's copper exporters, with no change in government policy.
(a) Explain how this rise in copper export revenue is likely to affect Nordavia's rate of unemployment. [3]
(b) Explain how this rise in copper export revenue is likely to affect Nordavia's rate of inflation. [3]
(c) Explain how this rise in copper export revenue is likely to affect Nordavia's current account of the balance of payments. [3]
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Worked solution
Part (a): Effect on unemployment
The rise in world copper prices means Nordavia’s copper exporters earn more revenue for the same volume of output, and they respond by expanding output and hiring more workers directly in the mining and export sector. The extra income earned by these workers and firms is then spent in the wider economy (on housing, retail, transport and other services) raising demand for labour in those sectors too, through the multiplier process. As firms across the economy face higher demand for their output, they take on more workers, so demand-deficient (cyclical) unemployment falls.
Part (b): Effect on inflation
The same rise in incomes and spending that reduces unemployment also raises aggregate demand throughout the economy. If Nordavia’s economy is already operating close to its productive capacity, firms find it increasingly difficult to expand output further without bidding up the price of scarce labour and other resources. This creates demand-pull inflationary pressure, so Nordavia’s rate of inflation is likely to rise as a result of the export-driven boom in aggregate demand.
Part (c): Effect on the current account of the balance of payments
Copper exports are a credit item on Nordavia’s current account, so a rise in the price at which the same volume of copper is sold directly increases export revenue recorded there. Although the resulting rise in domestic incomes may also raise spending on imports to some extent, the direct effect of higher export earnings works in the opposite direction to this. Provided the increase in import spending does not fully offset the higher export revenue, Nordavia’s current account balance improves. In clear contrast to a situation where growth is driven mainly by rising domestic incomes and consumption, which tends to pull in more imports and worsen the current account instead.
Final answers
- (a) Unemployment falls, as higher export incomes raise labour demand directly and, via the multiplier, throughout the economy
- (b) Inflation rises, as higher aggregate demand creates demand-pull pressure, especially near full capacity
- (c) The current account improves, since higher export revenue is a direct credit item, provided import spending does not rise by as much or more