In the following three situations, the market is initially in equilibrium. Explain the changes in either supply or demand that result from each event. After each event described below, does a surplus or shortage exist at the original equilibrium price? What will happen to the equilibrium price as a result?

a. 2015 was a very good year for California wine-grape growers, who produced a bumper crop.

b. After a hurricane, Florida hoteliers often find that many people cancel their upcoming vacations, leaving them with empty hotel rooms.

c. After a heavy snowfall, many people want to buy second-hand snow-blowers at the local tool shop.