We consider a society with informed individuals (adults) and naive individuals (children). Adults are altruistic towards their own children and possess information that allows to better predict the behavior of other adults. Children benefit from adopting behaviors that conform to the social norm...

People often form expectations about others using the lens of their own attitudes (the so-called consensus effect). We study the implications of this for trust and trustworthiness. Trustworthy individuals are more \optimistic" than opportunists and are accordingly less afraid to engage in...

We study Nature's trade-off when endowing people with the cognitive ability to distinguish between different time periods or different prizes. Our key premise is that cognitive ability is a scarce resource, to be deployed only where and when it really matters. We show that this simple insight...