This is interesting:

A John F. Kennedy School of Government researcher has cast doubt on the widely held belief that terrorism stems from poverty, finding instead that terrorist violence is related to a nation's level of political freedom.

Associate Professor of Public Policy Alberto Abadie examined data on terrorism and variables such as wealth, political freedom, geography, and ethnic fractionalization for nations that have been targets of terrorist attacks.

The full text of the article can be found here. (Via InstaPundit)