He is widely recognized as a leading figure in the recently renewed field of virtue ethics. He argues that virtue ethics, in a particular form which draws on the concept of an ethics of care, offers significant intuitive and structural advantages over deontology, utilitarianism, and common-sense morality. He has also recently endorsed the meta-ethical view of moral sentimentalism in opposition to moral rationalism (see his articles from 2003, 2004, 2005a and his books (2007 and 2010)).
"The Morality of Wealth" (1977) in World Hunger and Moral Obligation Prentice Hall
"Sentimentalist Virtue and Moral Judgment: Outline of a Project" (2003) in Metaphilosophy 34(1/2), pp. 131–143; reprinted in Moral and Epistemic Virtues, Michael Brady & Duncan Pritchard (eds.), (Wiley-Blackwell, 2004).
"Moral Sentimentalism" (2004), Ethical Theory and Moral Practice, vol. 7, no. 1, pp. 3–14.
"Moral Sentimentalism and Moral Psychology" (2005a) in The Oxford Handbook of Ethical Theory, David Copp (ed.), Oxford University Press.
"The Dualism of the Ethical" (2005b), Nous-Supplement: Philosophical Issues, vol. 15, pp. 209–217.