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原文連結
論文資訊
- 類型：已發表論文
- 日期：2005
摘要
Inclusive fitness models(1,2) predict many commonly observed behaviours: among humans, studies of within-household violence(3), the allocation of food(4,5) and child care(6) find that people favour those to whom they are more closely related. In some cases however, kin-利他主義 effects appear to be modest(7-9). Do individuals favour kin to the extent that kin-利他主義 models predict? Data on remittances sent by South African migrant workers to their rural households of origin allow an explicit test, to our knowledge the first of its kind for humans. Using estimates of the fitness benefits and costs associated with the remittance, the 遺傳 relatedness of the migrant to the beneficiaries of the transfer, and their age- and sex-specific reproductive values, we estimate the level of remittance that maxi
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