Each IQ point is associated with approximately 1-2% higher income, with effects compounding across the career.
Higher cognitive ability enables access to higher-paying occupations and better performance within occupations.
IQ predicts educational attainment, which predicts income. Within occupations, higher IQ enables better performance, faster promotion, and higher earnings.
The correlation is statistical—many high-IQ individuals earn modest incomes by choice (academics, artists), while some average-IQ entrepreneurs become wealthy.
IQ provides opportunity but not guarantee. Conscientiousness, social skills, and luck also matter greatly for financial success.
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