M.J. Peterson is a Professor of Political Science at the University of Massachusetts Amherst (USA). Her research focuses on formal organisations and informal practices through which governments pursue cooperative efforts to address cross-border problems. She is the author of International Regimes for the Final Frontier (2005), Managing the Frozen South: The Creation and Evolution of the Antarctic Treaty Regime (1988) and The General Assembly in World Policies (1986). She has also authored articles in the American Political Science Review, the American Journal of International Law, International Organization, and Review of International Organizations.