See on Scoop.it – Science News

The time and energy we can invest in others socially – in terms of building and maintaining friendships – is a lot like money; we cannot spend it in two places at once. Given that we have a limited budget with which to build and maintain relationships, it’s of vital importance for some cognitive system to assess the probability of social returns from its investment; likewise, individuals have a vested interest in manipulating that assessment in others in order to further their goals.

See on popsych.org