Calculating Real Disposable Income

Steps:

• Identify gross income sources: employment, pensions, and benefits.
• Subtract deductions: income tax and welfare contributions to get net income.
• Adjust for inflation: converts nominal values to real terms, reflecting purchasing power.
• Result: tracks changes in income available for spending after taxes and price changes.

Why C is correct:

• Real disposable income is defined as net income (after taxes and contributions) adjusted for inflation, measuring changes in household spending power.

Why the others are wrong:

• A: Nominal income ignores inflation adjustments, so it overstates purchasing power changes.
• B: Nominal net income subtracts taxes but lacks inflation adjustment.
• D: Real earnings focus only on employment wages adjusted for inflation, excluding pensions, benefits, and full tax deductions.

Final answer: C