 In addition, while the above evidence regarding causal pathways is arguably sufficient for normative theorizing, things may be different for the purposes of designing policy remedies. As Angus Deaton (2002: 15) puts it, “policy cannot be intelligently conducted without an understanding of mechanisms; correlations are not enough”. It is not clear that our existing understanding of the causal pathways between socially controllable factors and specific mortality and morbidity risks is sufficiently well-developed to underwrite concrete policy proposals. Moreover, even if it were, it would still be a further step to license implementation of some such proposal. Among other things, a license of this kind requires an account of the comparative effectiveness of a proposed reform in relation to salient alternatives.