Mark Schroeder (Southern California) works on areas of philosophy in some way connected to metaethics. He is interested in the ways in which rationality, reasons, value, and other “evaluative’” or “normative” categories are related to the mundane, physical world in which we live, in which things are round, red, or left of one another. For example, are there really facts about what is rational or not, to go along with the facts about what is round or not?
Sharon Street, a professor of Philosophy at NYU, specializes in metaethics. She has authored a series of articles on how to reconcile our understanding of normativity with a scientific conception of the world. Her work concerns the nature of both practical and epistemic reasons, and it draws especially on an evolutionary biological perspective.
Garrett Cullity, Hughes Professor of Philosophy at the University of Adelaide, is a moral philosopher whose work includes publications on eight broad topics in moral philosophy, including practical reasons and rationality, value and fittingness, moral epistemology, and beneficence and aid.
Geoff Sayre-McCord, the Morehead-Cain Alumni Distinguished Professor of Philosophy and the director of the Philosophy, Politics, and Economics program at the University of North Carolina–Chapel Hill, has worked and published extensively on moral theory, metaethics, the history of ethics, and epistemology.