Terms of Trade Boom and the Dutch Disease Question
A mineral-exporting economy experiences a sharp rise in its terms of trade as global prices for iron ore and lithium double. The exchange rate appreciates by 18% over two years. Export volumes are flat, but export values rise 40%. Meanwhile, tourism arrivals fall 12%, education exports decline, and regional manufacturing employment drops 5%. The central bank is under pressure to lower interest rates to relieve the traded-sector squeeze, but inflation is 4.5% and the labour market is tight. The government is considering a sovereign wealth fund to invest part of the windfall offshore.
1. Explain the transmission mechanism from the terms-of-trade boom to the decline in tourism and manufacturing, and assess whether this is a 'disease' or an efficient adjustment.
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The mechanism runs through the exchange rate and factor markets. Higher export prices raise demand for the domestic currency (exporters converting foreign earnings), appreciating it 18%. A stronger currency makes tourism and education more expensive for foreigners and imports cheaper for locals, squeezing traded-sector competitiveness. Simultaneously, the mining boom bids up wages and rents, pulling labour and capital from tourism and manufacturing into mining and non-traded services. The result is the observed 12% fall in arrivals and 5% drop in regional manufacturing employment.
Whether this is a 'disease' depends on whether the adjustment is efficient or excessive. It is efficient if resources are moving to their highest-value use and the boom is temporary - the economy is simply specialising according to comparative advantage. It is a disease if: (a) the exchange-rate appreciation overshoots, damaging sectors that are viable long-term; (b) the lost manufacturing and tourism capacity is costly to rebuild when prices normalise; or (c) the gains are concentrated in one region while costs are borne elsewhere. Judgement: the appreciation is a rational price signal, but the speed (18% in two years) and the concentration of costs suggest genuine hysteresis risk. Policy should focus on smoothing the adjustment, not blocking it.
2. Evaluate the sovereign wealth fund proposal against the alternative of cutting taxes or increasing spending.
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A sovereign wealth fund invests part of the windfall offshore, which has three advantages. First, it sterilises the boom: by not spending the revenue domestically, it reduces demand pressure and limits further appreciation and inflation (currently 4.5%). Second, it converts a temporary revenue stream into a permanent asset, addressing intergenerational equity. Third, offshore investment diversifies away from the domestic economy, which is already heavily exposed to commodity prices.
The alternatives have different trade-offs. Cutting taxes or raising spending would boost domestic demand, worsening inflation at 4.5% and adding to appreciation pressure - the opposite of what a supply-constrained, tight-labour-market economy needs. However, spending on productive infrastructure or skills could raise potential output and ease bottlenecks, which a pure savings fund does not do.
Judgement: the fund is the stronger macro instrument in the current cycle because inflation is above target and the labour market is tight. But it should not be an all-or-nothing choice: a hybrid that saves the majority offshore and directs a smaller share to productivity-enhancing investment would capture both stabilisation and growth benefits. The fund's credibility also depends on clear withdrawal rules, otherwise it becomes a slush fund.