The effect of the subjects’ income on delay –and probability– discounting rates was assessed. Participants were 40 high-income and 40 low-income young adults who were exposed to a delay discounting or a probability-discounting task with different reward amounts, using an adjusting amount procedure. Discounting rates and areas under the curve were calculated for both groups. Globally, high-income participants discounted less delayed rewards than low-income participants. In probability discounting, when the magnitude of the probabilistic reward was relatively small, highincome participants discounted less the reward; as the magnitude of the probabilistic reward increased, there were no differences between the discounting rates of participants of both income levels.
Keywords:
delay discounting, probability discounting, income, area under the curve
Corona Palma, C. A., Ávila Santibáñez, R., & Díaz Cigales, C. J. (2018). Contribution of income to the delay or probability discounting of monetary rewards. Revista De Psicología, 27(1), pp. 1–16. https://doi.org/10.5354/0719-0581.2018.50740
Twitter