Are Risk Aversion and Impatience Related to Cognitive Ability?

Th is paper investigates whether risk aversion and impatience are correlated withcognitive ability. We conduct incentive compatible choice experiments measuringrisk aversion, and impatience over an annual time horizon, for a representative sampleof roughly 1,000 German adults. A measure of cognitive ability is provided by twosubmodules of one of the most widely used IQ tests. Interviews are conducted insubjects’ own homes. We fi nd that lower cognitive ability is associated with greaterrisk aversion, and more pronounced impatience. Th e relationships are statisticallyand economically signifi cant, and robust to controlling for personal characteristics,educational attainment, income, and measures of liquidity constraints. We perform aseries of additional robustness checks, which help rule out other possible confounds.(JEL codes: C93, D01, D80, D90, J24, J62).