“Business and Its Common Goods,” Invited keynote address at a symposium commemorating the 60th anniversary, Instituto de Estudios Superiores de la Empresa/IESE (Barcelona), 5 July 2019.
“May Soldiers Intend to Kill? A Theological Inquiry,” invited presentation at a symposium on Limits to the Use of Violence during Legitimate Military Operations, Institut für Theologie und Frieden, Cologne, Germany, 11 May 2012. Published as “Dürfen Soldaten vorsätzlich toten? Eine theologische Untersuchung,” in German with revisions, in Bernhard Koch, ed., Den Gegner schützen? (Berlin: Nomos, 2014) pp 241-263.
“Can Harsh Interrogation Be Morally Legitimate?” invited panel presentation, Notre Dame Center for Ethics and Culture, 14th Annual Fall Conference, 8 November 2013.
“A Catholic Analysis of Modern Problems for the Just War Tradition,” invited presentation at the Sixth Galilee Colloquium on Social, Moral and Legal Philosophy, Kfar Blum, Israel, 23 June 2011.
“Taxation and the Role of Government,” in Philip Booth and André Azevedo Alves, eds., Catholic Social Thought, the Market, and Public Policy: Twenty-first Century Challenges (London: St Mary’s University Press, 2024) pp 171-193.
“What Can ‘Equity’ Be? Logos 27.1 (Winter 2024) pp 94-124.
“The Catholic Social Tradition and International Finance,” in E Christian Brugger and Gerard Bradley, eds., Catholic Social Teaching: A Volume of Scholarly Essays (Cambridge, UK: Cambridge University Press, 2019) pp 387-413.
“Social Justice, Charity and Catholic Social Doctrine,” in Christopher Wolfe, ed., The Concept of Social Justice, (South Bend, IN: St Augustine’s Press, 2018) pp 81-113.
Justice in Taxation. Grand Rapids, MI: Acton Institute, 2018.
“Thomas Aquinas’s Model of God,” in Models of God and Alternative Ultimate Realities, Jeanine Diller and Asa Kasher, eds., (Dordrecht: Spring SBM, 2013) pp 157-164.
“Wealth Creation within the Catholic Social Tradition,” in H. Alford, et al., eds., Rediscovering Abundance (South Bend, IN: University of Notre Dame Press, 2006) pp 57-86.
The Good that Business Does. Grand Rapids, MI: Acton Institute, 2006.
American Catholic Philosophical Association
- Executive Council, 1994-96
- Chair, Committee on the Future of the ACPA (1995-96)
- Chair, ACPA Working Group on Business Ethics, 1991-
- Member, Organizing Committee, 1999 Annual Conference
International Society for Military Ethics (ISME)