Income is not a heritable trait in an evolutionary context because it's not a biological trait If you are meaning to imply that there can be such a thing as a

Income is not a heritable trait in an evolutionary context because it's not a biological trait If you are meaning to imply that there can be such a thing as a heritable trait that is not biological, perhaps you should define what you mean by the term "biological trait". What do you mean when you say that income is not a biological trait? FYI, here is a dictionary (M-W Unabridged) definition of heritability: the proportion of observed variation in a particular trait (as intelligence) that can be attributed to inherited genetic factors in contrast to environmental ones This search... http://www.google.com/search?q=%22biological+trait+is+a%22 http://www.google.com/search?q=%22biological+trait+is+a%22 ...returns this interesting hit: Learning ability, as any biological trait, is a product of natural selection. Consequently, it can only evolve if the benefits outweigh the costs. Would you class learning ability as a "biological trait"? Would you class learning ability as a "heritable trait in an evolutionary context"? This is also interesting: http://www.google.com/search?q=%22income+is+heritable%22 http://www.google.com/search?q=%22income+is+heritable%22 40% of income is heritable.