The shadow banking system refers to:. a. Non-bank financial firms that acted as banks by borrowing and lending of U. S. Treasury bills in an effort to make a profit.
b. Non-bank financial firms that acted as banks by borrowing and lending in an effort to make a profit.
c. Non-bank financial firms that acted as stock brokers by buying and selling stocks in an effort to make a profit.
d. Non-bank financial firms that provide profit advice to hedge fund managers.

Brian has just finished college. he wants to set up a small business to make and sell fireworks. he registers his company and acquires a license from the government. he finds that most of his competitors are selling fireworks at an extremely low price. he would like to make more money, so he decides to innovate and develop better fireworks. he sells his fireworks at a higher price, and they are a huge hit with the customers. after a few years, he earns enough profit to set up a bigger fireworks factory that complies with the government’s health and safety regulations. he even starts exporting fireworks overseas. which type of economy does this scenario describe?