As noted in the video Stalag 17 and in your readings, many things have been used as money over time: cigarettes, gold paper currency(like U.S dollar) etc. Describe the functions of money and consider the U.S dollar as an example. Although the U.S dollar has little to no intrinsic value, why do people want it so much? Can you think of other examples of things that act as "money" in our society?