Adam Smith claimed that \u201cthe propensity to truck, barter and exchange\u2026 is common to all men\u201d, but anthropologists know that this isn\u2019t the case. In fact, humans tend towards the opposite. So why do we feel compelled to give away our wealth? Nadia, Jem and Keir unwrap the cultural and economic pressures on doing pressies [\u2026]