What explains the durability of Arab monarchies?
I can't seem to wrap my head around how the Arab monarchies have faced little to no resistance to their respective regimes. On both a domestic and international front, these monarchies have beaten back opposition and remained relatively stable. When states like Libya and Egypt essentially collapsed during the Arab Spring, I wonder how Arab monarchies were left relatively unharmed.
Is there any research into the seeming stability of Arab monarchies even though the region seems relatively unstable?