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CASE I: Constant increases in all incomes. A constant increase in all incomes leads to an inequality reduction. Inequality decreases. CASE II: Proportional changes in incomes. A proportional change in all incomes does not affect the inequality level. Inequality remains unchanged.
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CASE I: Constant increases in all incomes A constant increase in all incomes leads to an inequality reduction Inequality decreases
CASE II: Proportional changes in incomes A proportional change in all incomes does not affect the inequality level Inequality remains unchanged
CASE III: Income transfers A progressive income transfer leads to an inequality reduction (Pigou-Dalton principle) Inequality decreases