A-Level Economics October/November 2024 Q1(e): Assess the likely impact of the rise in the world copper price from 2020 on the future…

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  Economic growth is the increase in a country's real output over time. The rise in the world copper price is likely to have a significant, though mixed, impact on Chile's future economic growth due to the commodity's central role in its economy.

  Chile is the world's largest copper producer, and the commodity is vital to its economic performance. Copper mining accounts for approximately 11% of Chile's GDP and over 50% of its total export earnings. (M1) Therefore, a sustained rise in the world price of copper, as seen from 2020, will directly increase the value of Chile's exports.

  Assuming the price elasticity of demand (PED) for copper is inelastic (PED < 1), a rise in price will lead to a more than proportionate increase in total export revenue. This increase in export revenue (X) is an injection into the circular flow of income and causes a rightward shift in the Aggregate Demand (AD) curve (AD = C + I + G + (X-M)). This leads to an increase in real GDP and a higher rate of economic growth. (M2) The increased revenue can also lead to higher profits for mining companies, potentially stimulating investment (I) in new technology and capacity, further boosting long-run aggregate supply and future growth prospects. Furthermore, higher tax revenues from mining profits can allow the government to increase spending (G) on infrastructure and public services.

  However, there are significant potential disadvantages and risks that could limit or reverse this positive impact. Firstly, the assumption of inelastic demand may not always hold. For instance, despite higher average prices, Chile's copper export revenue fell in February 2022. This suggests that at very high price points, demand may become elastic as countries seek cheaper substitutes (like aluminium) or reduce consumption, leading to a fall in total revenue. (M3) Secondly, the reliance on a primary commodity creates long-term vulnerabilities. High prices may incentivise other countries to increase their production, leading to increased competition and potential future price falls. More fundamentally, copper is a finite, non-renewable resource. Over-extraction to meet current high prices will accelerate the depletion of reserves, jeopardising the country's long-term growth potential. (M4) This over-specialisation also exposes the economy to significant volatility, as commodity prices are prone to boom and bust cycles.

  In assessment, the impact on future economic growth depends on how the windfall gains are managed. The short-term boost to GDP is highly likely, as seen by the initial rise in export revenues. The fall in revenue in February 2022 could be a temporary issue caused by specific market conditions or supply disruptions, but it serves as a warning against the assumption of ever-increasing revenue. (A1) The more critical issue is the long-term sustainability. While the price rise provides a short-term stimulus, it simultaneously highlights the long-term risk of resource depletion and price volatility.

  In conclusion, the rise in the world copper price is likely to have a positive impact on Chile's economic growth in the short to medium term. However, for this to translate into sustainable long-term growth, it is crucial that the Chilean government and firms use the increased revenues to diversify the economy away from its heavy reliance on copper. (A2) Investing in other sectors, such as technology, services, and renewable energy, will be essential to mitigate the risks of future price collapses and eventual resource depletion, ensuring a more stable path for future economic growth.

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  How the marks are awarded

  • M1 — Awarded for explaining the significance of copper to the Chilean economy by providing specific data, such as it accounting for '11% of Chile's GDP and over 50% of its total export earnings'.
  • M2 — Awarded for explaining the transmission mechanism where higher prices, assuming inelastic demand, lead to increased export revenue (X), which shifts Aggregate Demand to the right, causing economic growth.
  • M3 — Awarded for providing a counter-argument by noting that revenue can fall despite high prices, citing the 'fall in February 2022' and explaining this could be due to demand becoming elastic or the use of substitutes.
  • M4 — Awarded for identifying a further disadvantage, specifically the long-term risk that copper is a 'finite, non-renewable resource' and that over-extraction threatens future growth.
  • A1 — Awarded for assessing both sides of the argument, weighing the 'short-term boost to GDP' against the 'long-term sustainability' and considering whether negative data points are temporary or indicative of a larger problem.
  • A2 — Awarded for the valid conclusion that the short-term impact is likely positive, but that 'sustainable long-term growth' is conditional on using the revenue to 'diversify the economy'.

  Common mistakes

  • Failing to provide any evaluation, giving a one-sided answer that only focuses on the benefits of higher export prices.
  • Not explaining the economic mechanism (e.g., increase in X component of AD) through which higher prices lead to economic growth.
  • Ignoring the concept of Price Elasticity of Demand (PED) and its importance in determining whether a price rise leads to a revenue rise.
  • Making a weak conclusion that just summarises previous points without offering a justified final judgement on the 'likely' impact.

  Examiner tip: For any 'assess' or 'evaluate' question, always structure your answer to present both the positive and negative impacts before making a final, justified conclusion.

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