Sounds like a muslim economy.

For good reason, no doubt. They still have remnants of the stead-state economy of the ancient world.

The exception is that there can be and actually should be interest charged for money borrowed. In a steady-state, zero-growth economy, all assets must be used efficiently, and that means that all assets must have a rental value. That includes money. Interest is just the name we apply to the rent we charge for the use of money. If any asset has no rent charged for its use, then that asset is considered to be "free", and can be used or abused to one's heart's content. A zero-growth economy can't afford that, because it can't afford to replace assets that are wasted.

Muslim Banks do not engage in Usury. Sharia Law prohibits charging/paying interest. There is also an injunction against excessive risk taking. (probably as that would be considered gambling)

http://www.metimes.com/storyview.php?StoryID=20061129-083353-2138r

http://www.misysbanking.com/files/file5375_Islamic%20banking%20flyer%20P...