Crime and punishment: issues in legal philosophy; social and economic justice; business and professional ethics; political philosophy; science and ethics; introduction to philosophy: ethics and policy.

Research interests
Political philosophy and economics, metaphysics, applied ethics, business and professional ethics, and bioethics.

Selected recent publications
“Distributive Justice” Stanford Encyclopedia of Philosophy, (Revised Edition, Spring 2007 Edition) ed. Edward N. Zalta
“Productivity, Compensation, and Voluntariness” in Values, Justice and Economics, eds: Gerald Gaus, Christi Favor, and Julian Lamont (Amsterdam, Netherlands: Rodopi Publishing Co., forthcoming)
"The Ethics of Patents on Genetically Modified Organisms"  (co-authored with Justine Lacey) Australian Journal of Professional and Applied Ethics  Vol. 8, No. 2, September 2006 pp. 1-11.
“Chapter 17: Distributive Justice” in Handbook of Political Theory, eds. Chandran Kukathas and Gerald Gaus (Sage Publications, London, UK, 2004) “More Solutions to the Puzzle of When Death Harms Its Victims?” in Death And Anti-Death, Volume 1 ed: Charles Tandy, (Palo Alto, CA: Ria University Press, 2003), pp. 377-396
“The Concept of Desert in Distributive Justice” in Desert and Entitlement: Equality and Justice, Volume Six ed. Peter Vallentyne (Routledge, 2002)
“The Ethics of Doctor Supply Restriction in Australia” Australian Journal of Professional and Applied Ethics Vol. 2, No. 2., 2001.