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IAI Actuarial Core Principles · Business Economics · Relationship between economics and business

A steel manufacturer in India finds that its own sales fall sharply even though the economy-wide index of industrial production is rising. Which statement best explains why both micro and macro analysis are needed?

Aggregate growth can coexist with a weak result for one firm, because macro indicators hide differences between firms and markets. Firm-specific factors such as competitor pricing or product demand must be analysed with microeconomics, while macroeconomics supplies the broader background conditions.

  1. AMacroeconomic growth guarantees that every firm's sales rise, so the firm must have made an accounting error
  2. BAggregate growth can coexist with weak performance in a particular firm or market, so firm-level factors such as competitors' pricing must also be examinedCorrect
  3. CMicroeconomics is irrelevant when the macro economy is growing
  4. DMacroeconomic data are simply the sum of firm data, so the situation is impossible
  5. Only government policy can explain falls in a single firm's sales

Explanation

Aggregate indicators describe the whole economy and mask variation between firms and sectors. A firm can lose share to rivals or face cost or demand shifts specific to its market even in a boom. Hence macro conditions set the background but micro analysis explains firm-specific outcomes.

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