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.

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.

b. The market for Montreal Canadiens cotton T-shirts

Case 1: The Canadiens win the Stanley Cup.
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.

d. The market for the Krugman, Wells, Au, and Parkinson economics textbook

Case 1: Your professor makes it required reading for all of his or her students.
Case 2: Printing costs for textbooks are lowered by the use of synthetic paper.