The Cost of Terrorism: The Relationship Between International Terrorism and Democratic Governance

After Al Qaeda's destruction of the World Trade Center on 11 September 2001, many democracies reacted to the event, and to international terrorism in general, by passing laws restricting civil liberties and political rights, raising questions about the balance between security and liberty. Such laws have produced alarms among civil libertarians, worldwide. Are the alarms justified? In this article we analyze the relationship between the yearly number of international terrorist attacks in 24 countries from 1968–2003 and (a) measures of civil liberties and political rights as provided by Freedom House, and (b) levels of democracy as measured in the Polity IV scales. We take the number of international terrorist events, by country, from data provided by the Memorial Institute of the Prevention of Terrorism (MIPT) http://www.tkb.org/Home.jsp. Our analysis indicates that there is, generally, no relationship between the number of international terrorist events and the levels of civil rights, political rights, or democracy as measured by the Freedom House and Polity IV indicators. When there is a statistically significant relationship, it is negative, opposite to what is predicted by the tradeoff hypothesis.