Reflexivity reduces pro-sociality but only among strategic subjects

Is pro-sociality a natural impulse or the result of a self-controlled behavior? The literature is not quite univocal on the cognitive mechanisms behind this key feature of observed human behavior. We investigate this issue in a lab in the field experiment with participants selected among the general adult population in Italy. We test prosociality with a Distribution game (or three player dictator game), reflexive versus impulsive behavior with an extended version of the Cognitive Reflection Test and strategic reasoning with the guessing game. In the latter, we request to participants to provide also a motivation of the choice they made in the game. We find two important results: first, that there is a positive relationship between pro-sociality and strategic reasoning. Second, reflexivity reduces pro-sociality but only among strategic subjects. Our results support the intuitive view of pro-sociality: naive individuals that do not control their impulses behave pro-socially, while among strategic subjects the ability to suppress the pro-social impulse is achieved by those subjects making a more selfcontrolled and reflexive choice.