The right side of fair play

A stranger walks up to you and a friend and offers to give you both £100. As always, there is a catch – your friend must choose how to split the money between you. Accept his offer, and you both keep your respective shares; reject it, and you both come away empty-handed. Now imagine your friend offered you a single pound. What do you do? Most people would reject the offer to spite the friend. Even though you would financially better off if you accepted, you friend’s proposal is unfair and rather insulting. Clearly, economic status is not the only thing at stake here.

Psychologists use this ‘Ultimatum Game‘ to investigate the role of justice in human interactions and the

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