4. Show in a diagram the effect on the demand curve, the supply curve, the equilibrium price, and the equilibrium quantity of each of the following events on the designated market.

a. the market for newspapers in your town Case 1: The salaries of journalists go up.

Case 2: There is a big news event in your town, which is reported in the newspapers, and residents want to learn more about it.

b. the market for St. Louis Rams cotton T-shirts Case 1: The Rams win the national championship.

Case 2: The price of cotton increases.

c. the market for bagels Case 1: People realize how fattening bagels are.

Case 2: People have less time to make themselves a cooked breakfast.