We offer a game-theoretic proof of Hamilton's rule for the spread of altruism. For a simple case of siblings, we show that the rule can be derived as the outcome of a one-shot prisoner's dilemma game between siblings. -- evolution of altruism ; Hamilton's rule ; one-shot prisoner's dilemma game

We demonstrate how altruism can surge in a population of nonaltruists. We assume that each individual plays a one-shot prisoner's dilemma game with his or her sibling, or with a stranger, and that the probability that an individual survives to reproduce is proportional to his or her payoff in...

In a haystack-type representation of a heterogeneous population that is evolving according to a payoff structure of a prisoner's dilemma game, migration is modeled as a process of swapping individuals between heterogeneous groups of constant size after a random allocation fills the haystacks,...

Economic preferences are important for lifetime outcomes such as educational achievements, health status, or labor market success. We present a holistic view of how economic preferences are related within families. In an experiment with 544 families (and 1,999 individuals) from rural Bangladesh...

Economic preferences are important for lifetime outcomes such as educational achievements, health status, or labor market success. We present a holistic view of how economic preferences are related within families. In an experiment with 544 families (and 1,999 individuals) from rural Bangladesh...

Economic preferences - like time, risk and social preferences - have been shown to be very influential for real-life outcomes, such as educational achievements, labor market outcomes, or health status. We contribute to the recent literature that has examined how and when economic preferences are...

Economic preferences - like time, risk and social preferences - have been shown to be very influential for real-life outcomes, such as educational achievements, labor market outcomes, or health status. We contribute to the recent literature that has examined how and when economic preferences are...

Economic preferences - like time, risk and social preferences - have been shown to be very influential for real-life outcomes, such as educational achievements, labor market outcomes, or health status. We contribute to the recent literature that has examined how and when economic preferences are...

Economic preferences - like time, risk and social preferences - have been shown to be very influential for real-life outcomes, such as educational achievements, labor market outcomes, or health status. We contribute to the recent literature that has examined how and when economic preferences are...