I teach a methods seminar, and one of my students wants to do a comparative study of post-Soviet Russia and Saudi Arabia, on the basis that Saudi Arabia is a "closed economy" (used to compare with post-Soviet privatization of Russia's oil industry). I know the Saudi oil sector is government controlled, but I don't think I'd call the country a "command economy" (in the sense of communist economics). Before I challenge my student, I want to be sure. Any experts on Saudi Arabia's economy want to weigh in?