Hall is a senior affiliated scholar with the Mercatus Center at George Mason University and an affiliated scholar with the Foundation for Economic Education. She is a senior fellow at Pegasus Institute and a research fellow with the Independent Institute. She holds a PhD in Economics from George Mason University. Hall is the co-author of Manufacturing Militarism: U.S. Government Propaganda in The War On Terror and Tyranny Comes Home: The Domestic Fate of U.S. Militarism, both with Stanford University Press. Her broader research interests include Austrian economics, political economy, and defense and peace economics. Her work includes topics surrounding U.S. national defense and militarism, including police militarization, domestic extremism, propaganda, technology in warfare, and the impacts of foreign conflict on domestic institutions.