“…Along with the empirical investigation of Chen et al (2016), several papers aimed at estimating the quantitative impact of political risk on the oil price dynamics (Lee et al, 2017;Miao et al, 2017;Perifanis and Dagoumas, 2019;Abdel-Latif and El-Gamal, 2020;Qin et al, 2020;Caldara and Iacoviello, 2022). Alhajji and Huettner (2000) can be considered the first attempt to assess the quantitative impact of political risk shocks on oil price fluctuations, being the sole study that incorporates quantitative measures of political tensions-security cost per barrel (i.e., the increase of military spending for each OPEC country relative to Venezuela)-in a model of oil prices during the 2000s (Coleman, 2012).…”