 Hopefully, we have now clarified what a social minimum is and what it means to enact a social minimum. These clarificatory concerns met, we can now consider why we might want to enact a social minimum. As noted in the introduction, we shall review a number of influential theories of social justice asking, with respect to each theory, what support (if any) it can give to the case for enactment. The five theories to be reviewed are: utilitarianism; libertarianism; left-libertarianism; egalitarian liberalism; and relational egalitarianism.