Rentier state
From ACT Wiki
A term coined by Hossein Mahdavy in 1970. This theory defines rentier states as those countries that receive on a regular basis substantial amounts of their national revenue from the rental of indigenous resources to external clients.
An example of this type of rental is the payment for passage of ships through the Suez Canal.
This term can also be applied to states which trade in valuable natural resources such as oil, or financial instruments such as reserve currency or strategic resources such as military bases.