Our work has proved controversial. In part this is because the people attracted to the academic study of conflict tend to be politically engaged and are sympathetic to the acute grievances enunciated by various rebel movements, who often adopt extreme measures to oppose governments that indeed may be unsavory. To such academics, the whole idea of investigating statistically whether there is a relationship between objective measures of grievance and a propensity to rebel is taken to be more or less an insult, since they know there is one.

