A new study published in the Journal of Quantitative Criminology found that economic deprivation triggers far-right terrorism. Conversely, far-left terrorism is triggered by improving economic conditions. Islamist terrorism is not affected by collective deprivation in the United States. The study was conducted using PIRUS data between 1948 and 2016.
Varaine, S. (2019). Revisiting the Economics and Terrorism Nexus: Collective Deprivation, Ideology and Domestic Radicalization in the US (1948–2016). Journal of Quantitative Criminology, 1-33.