1. Silver was typically the main circulating medium , with gold as the monetary reserve. 2. The circulating medium could be reduced by the converse process whenever this was necessary. 3. The Yuan Government revolutionised the economy by introducing paper currency as the predominant circulating medium . 4. This ratio is alleged to be approximately 3 of income to 1 of circulating medium . 5. Accordingly, any currencies backed by any sorts of value became the circulating mediums of exchange. 6. The successive Yuan Dynasty was the first government to use paper currency as the predominant circulating medium . 7. To increase the total circulating medium would, nevertheless be the function of the Monetary Authority exclusively. 8. Thus it seems that the bottom has been knocked out of the original basis underlying out circulating medium . 9. The successive Yuan Dynasty was the first dynasty in China to use paper currency as the predominant circulating medium . 10. However the motivation behind their issuance was always funding federal expenditures rather than the provision of a circulating medium .