We study the effect of altruism in two simple asset exchange models: the yard sale model (winner gets a random fraction of the poorer player's wealth) and the theft and fraud model (winner gets a random fraction of the loser's wealth). We also introduce in these models the concept of bargaining efficiency, which makes …
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4 results for “altruism”
A Tale of Two (and More) Altruistsphysics.soc-ph
Model compares altruism and individualism in wealth dynamics.
problem Comparing altruism and individualism in wealth dynamics.
method Minimalist dynamical model of wealth evolution and sharing among N agents.
result Altruism leads to more global median wealth at early times but individualists accumulate most wealth in the long run.
Cooperation is a persistent behavioral pattern of entities pooling and sharing resources. Its ubiquity in nature poses a conundrum. Whenever two entities cooperate, one must willingly relinquish something of value to the other. Why is this apparent altruism favored in evolution? Classical solutions assume a net fitness…
'Egalitarian pooling and sharing of longevity risk', a.k.a. 'The many ways to skin a tontine cat'q-fin.RM
The paper explores how to fairly share longevity risk among participants of tontine schemes.
problem Fair distribution of longevity risk among participants with varying wealth and health.
method Develops a modeling framework for sharing benefits among survivors in tontine schemes.
result There are multiple ways to share longevity risk, depending on social cohesion.