  We have already seen some ways in which considerations of personal  identity might be relevant to self-regarding arenas like  anticipation and prudential concern. We turn now to examine specific ways  in which personal identity may have implications for the  other-regarding practical concerns discussed in various arenas of  moral philosophy. One of the most widely discussed in the  literature thus far has been ethical theory. Most of those working in the field to this point have been appealing to considerations of  identity to boost the plausibility of consequentialism, and, more  specifically, utilitarianism. There are various ways in which such an attempt proceeds.