Agriculture and tourism are two of California's leading industries. Both are seasonal in nature. That is, the amount of artichokes sold and the amount of beachfront condominiums rented is higher during a particular period of the year relative to the rest of the year. But, the price of artichokes falls when they are "in season" while the rental price of a beachfront condominium increases when they are "in season."

Complete the following sentences to rationalize these patterns.

The [ Select ] ["demand", "supply"] for artichokes [ Select ] ["increases (shifts out)", "decreases (shifts back)"] when they are in season.

The [ Select ] ["demand", "supply"] for beachfront rentals [ Select ] ["increases (shifts out)", "decreases (shifts back)"] when they are in season.