“…Consider, for instance, that hydrocarbons in non-Gulf oil exporters have significantly lower shares of GDP (less than one-quarter) and total exports (just over 50%) than Gulf states at one-third and 80% respectively [51] . The Gulf states, in fact, display varying degrees of rentierism and the extent of the ‘curse’ has been shaped by factors such as tribal and sectarian affiliations [52] , [53] , ownership structure of state-owned companies [54] , [55] , [56] , political repression [57] , [58] , [59] , historical relationships with the merchant class [60] , [61] , relatively small population size [62] , [63] , [64] , and the global outlook of their leaders [65] , [66] . These and other refinements to the concept have strengthened, but not upended, its rigor, relevance, and influence in analyses of the Gulf [67] , [68] , [69] , [70] , [71] , [72] , [73] .…”