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A UK engineering company imports more than 75% of its products from the USA. The finance manager is creating the budget for next year and has told the procurement manager that, to do this, finance simply add a published inflation index to prices paid last year. Is this a way for a business to precisely predict prices for next year?
Comprehensive and Detailed Explanation (paraphrased from CIPS L4M2 content)
CIPS L4M2 explains that general inflation indices (like consumer or retail price indices) are based on a basket of goods and services for the whole economy, not tailored to a specific company's imports or input mix.
For an engineering business importing from the USA, its price changes will depend on:
Specific industrial input price indices (e.g. metals, components, specialist goods),
Exchange rate movements GBP/USD,
Sector-specific factors (technology, capacity, freight, tariffs).
Therefore, simply ''adding a published inflation index'' to last year's prices cannot precisely predict next year's prices, particularly when:
The index may include irrelevant items like food, clothing, local services, etc.
It may not reflect the specific mix of industrial inputs or the effects of exchange rates.
Thus:
Option A correctly explains the limitation: the inflation index may include products and services that are not relevant to the company's purchases.
Option B mentions price adjustment formulas (which can be more precise if designed well), but the question emphasises whether using a general index alone is precise -- option A goes straight to the core reason.
Options C and D describe partial truths (indices can show general trends and give a quick check) but they do not support precise forecasting.
Relevant CIPS L4M2 areas:
Use and limitations of inflation indices in cost forecasting
Factors influencing prices in international procurement (currency, indices, market conditions)
Building realistic cost assumptions in a business case