MY MACROECONOMICS PROFESSOR GAVE ME $20 DOLLARS TO SHOW THE CLASS AN EXAMPLE OF HOW A BANK WORKS, AFTER RECEIVING THE MONEY, HE GAVE A PAPER OF SOMEONE'S HOMEWORK AND SAID THAT THIS WAS THE LOAN. THE WHOLE TIME I WAS THINKING THIS TO MYSELF, WHAT WOULD IT BE LIKE IF I JUST RAN WITH THE $20?