 Underlying this approach is the more fundamental distinction between relational and distributive theories of justice. Although this distinction can be drawn in different ways (see, e.g., Lippert-Rasmussen 2015, Fourie et al. 2015), it identifies two critical dimensions of justice. One concerns how well-off individual people are, both absolutely and in comparison to each other. The other concerns the kinds of social relationships people stand in to one another. As discussed in  §4.3,  it is a difficult question to what extent either dimension of justice can be reduced to, or expressed in terms of, the other.