He is the author of a book entitled Beyond the Culture of Contest: From Adversarialism to Mutualism in an Age of Interdependence (Oxford: George Ronald, 2004), as well as various peer-reviewed articles in the field of peace and conflict studies. He has also written several peer-reviewed articles on the topic of global citizenship, including Discourse, Identity, and Global Citizenship (Peace Review) and Global Citizenship and Humanities Scholarship: Toward a Twenty-First Century Agenda (International Journal of Humanities).