Inflation erodes fixed incomes most severely

Steps:

• High inflation increases the general price level, reducing the real value of money over time.
• Identify groups affected by changes in purchasing power: those with fixed vs. adjustable incomes or costs.
• Borrowers benefit from repaying loans with devalued currency; importers face higher costs but can pass them on.
• Fixed wage earners cannot adjust income quickly, leading to decreased real income.

Why D is correct:

• Fixed wage earners suffer because their nominal wages remain constant while inflation raises living costs, eroding real purchasing power (real wage = nominal wage / price level).

Why the others are wrong:

• A. Borrowers gain as they repay fixed debts with money worth less due to inflation.
• B. Importers may face higher costs but often pass them to consumers via price increases.
• C. Producers can raise prices to match inflation, maintaining or increasing profits.

Final answer: D