ChainWhat it assumes · how to break it
Start
World oil prices rise sharply, raising the earnings of an oil-exporting developing country whose state oil company and royalties fund much of the budget.
1
As a result, royalties, taxes on producers' profits and the earnings of state-owned producers rise.
government revenue · royalties
government revenue · royalties
Assumes: The government captures a large share of the commodity income.
But: If production is run by foreign firms on contracts with low royalty rates, most of the windfall goes to them.
2
This means the budget deficit narrows, or moves into surplus, without any rise in tax rates.
budget deficit · budget surplus
budget deficit · budget surplus
Assumes: Spending does not rise as fast as revenue.
But: Governments under political pressure often raise spending and subsidies during booms.
3
At the same time, spending commitments made during the boom, such as public sector pay and fuel subsidies, are hard to reverse when prices fall.
procyclical fiscal policy
procyclical fiscal policy
Best link to attack
Assumes: The government treats the windfall as permanent and spends it.
Assumes: The government treats the windfall as permanent and spends it.
But: A fiscal rule or a sovereign wealth fund, such as Norway's, can set aside windfall revenue and limit how much is spent each year.
4
Therefore, when commodity prices fall, revenue drops sharply while spending stays high, so a large deficit opens.
fiscal balance · volatility
fiscal balance · volatility
Assumes: Commodity prices will fall at some point.
But: A country with diversified revenue sources can absorb a price fall more easily.
End
The fiscal balance improves while prices are high, but reliance on commodity revenue leaves the budget exposed when prices fall.
Evaluation chain
- E1However, the effect on the budget over the whole commodity cycle depends on whether the windfall is spent or saved.
- E2If the government raises pay and subsidies during the boom, those commitments remain when prices and revenue fall.
- E3As a result, the deficit widens sharply in the slump, and the government may have to borrow or make painful cuts at the worst time.
- E4So a commodity price rise improves the fiscal balance in the short run, but it can worsen it over the cycle unless the windfall is saved through a fiscal rule or wealth fund.
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Questions this answers
- Assess the impact of higher commodity prices on the government finances of a commodity-exporting country.
- Discuss the case for commodity exporters setting up sovereign wealth funds.
- Explain why governments that rely on commodity revenue may face volatile budget balances.
Diagram
No standard diagram. Use the share of government revenue from commodities and the budget balance over a boom and slump as evidence.
Reverse and related
Fall in commodity prices → revenue falls sharply and the budget deficit widens, often forcing spending cuts.