 Rather than focus on commensurability between abstract values, recent research focuses on the incomparability between concrete bearers of value, often in the context of choice (Broome 1997, 2000; Chang 1997, 2002; Griffin 1986; Raz 1986). Bearers of value sometimes appear incomparable in cases like Joseph Raz’s example of the choice between careers (described above in subsection 1.2).