key skill in economics is the ability to use the theory of supply and demand toanalyze specific markets. In this week's discussion, you get a chance to demonstrate your ability to analyze the effects of several "shocks" to the market for coffee. Choose one of the three scenarios below.

Scenario 1: Suppose that, as part of aninternational trade agreement, the U.S. government reduces the tariff on imported coffee. Will this affect the supply or the demand for coffee? Why? Which determinant of demand or supply is being affected? Show graphically with before- and after-curves on the same axes. How will this change the equilibrium price and quantity of coffee?

Scenario 2: Suppose the National Institutes of Health publishes a study finding thatcoffee drinking reducesthe probability ofgetting colon cancer. How do you imagine this will affect the market for coffee? Why? Which determinant of demand or supply is being affected? Show graphically with before- and after-curves on the same axes. How will this change the equilibrium price and quantity of coffee?

Scenario 3: Combine parts 1 and 2. Suppose that the U.S. government reduces the tariff on imported coffee, and a reputable study is published indicating that coffee drinkers have lower rates of colon cancer. What will the combined impact be on the equilibrium price and quantity of coffee? Explain your reasoning and show graphically.