Polarization and International Politics

Professor Rachel Myrick from Duke University will give a presentation at the MIT Security Studies Program's Wednesday Seminar.

Summary: Polarization is a defining feature of politics in the United States and many other democracies. Yet although there is much research focusing on the effects of polarization on domestic politics, little is known about how polarization influences international cooperation and conflict. Myrick argues that polarization reshapes the nature of constraints on democratic leaders, which in turn erodes the advantages democracies have in foreign affairs. Drawing on a range of evidence, including cross-national analyses, observational and experimental public opinion research, descriptive data on the behavior of politicians, and interviews with policymakers, Myrick traces the pathways by which polarization undermines each of the democratic advantages. Turning to the case of contemporary US foreign policy, Myrick shows that as its political leaders become less responsive to the public and less accountable to political opposition, the United States loses both reliability as an ally and credibility as an adversary.