What did the ancient egyptians use as their currency?

The Egyptians used non-coin forms of silver and gold currency, such as silver rings and gold pieces shaped like sheep, centuries before minting coins out of the metals.

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.