418.Explain how money adds to welfare although it does not directly produce anything.419.If professional basketball superstar LeBron James signed his jersey and gave it to you, it would certainly be a valuable asset. Why would this valuable asset not serve as a very good form of money if you took it to a shopping mall, looking to purchase a pair of shoes? Use the three roles of money in your explanation.420.Using gold as an example, what is the difference between commodity money and commodity-backed money?421.It's your birthday, and your uncle opens up his wallet and gives you a $20 bill. You take the $20 and deposit it in your checking account. What is the effect of this transaction on M1 or M2? Explain.422.It's your birthday, and your uncle opens up his wallet and gives you a $20 gift card to the local movie theater. You take the $20 gift card and use it to watch a movie and buy some popcorn and soda. What is the effect of this transaction on M1 or M2? Explain.