Does executive control relate to sacrificial behavior during conflicts of interests?

Why is it that some people are better able to sacrifice their own immediate interest for the sake of their partner than others? We conducted two studies to test whether an individual's level of executive control plays a role in answering this question. Study 1 demonstrated that executive control is related to the tendency to continue a frustrating task to benefit one's partner. Study 2 replicated this effect by using two different indicators of sacrifice: a behavioral sacrifice measure and a questionnaire on the intention to make major sacrifices for one's partner. Together, our findings suggest that higher levels of executive control facilitate prorelational behavior when facing various conflicts of interests in a romantic relationship.